A satellite was in two separate crashes. in both crashes, the satellite had the same mass of 5000kg. The black asteroid has a mass of 1500 X 50 kg and the gray asteroid has a mass of 100 x 50 kg engineers want to know about the speed and direction of the satellite after the crashes. which crash caused a greater change in velocity for the satellite? please help i will mark you brainliest

The magnitude of the momentum after the collision between the ball and the putty is 0.167 m/s

Following the two balls collided, our task is to determine the velocities of the first and second balls after the impact. In order to complete this, we can apply the law of the conservation of momentum, which states that the total momentum before the collision must be equal to the momentum after the contact. In this case, we are given that:

Mass of the first ball (m1) = 1 kg

Mass of the second ball (m2) = 5 kg

Initial velocity of the first ball (v1) = 1 m/s

Initial velocity of the second ball (v2) = 0 m/s

To calculate the final magnitude of momentum, we can use this following formula:

m1 v1 + m2 v2 = (m1 + m2) v

1 kg x 1 m/s + 5 kg x 0 m/s = (1 kg + 5 kg) v

v = 0.167 m/s

Thus, the final magnitude of the momentum would be 0.167 m/s

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If the partial pressure of the diatomic gas is 0. 720 atm, 2.57 atm  is the total pressure.

The physiological effects of the various breathing gas components are dependent on partial pressure when diving underwater. Partial pressure is computed using diving terminology as follows: partial pressure = (total absolute pressure) (volume fraction of gas component)

The partial pressure in a mixture of gases is the amount of pressure that each gas would exert if it were the only gas present in the volume, or we may define it as the pressure that each component of the mixture of gases exerts.

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To warm a  2.38892 x 10⁻² kg of water, 5000 J of heat is required. The final temperature of the water is 55⁰C

The law of conservation of heat energy states that:

Heat released = Heat received.

The amount of heat energy released or received for a substance is given by:

Q = c . m . Δt

Where:

c = specific heat of the substance

m = mass

Δt = temperature difference

Let:

ta = final temperature of the water

The specific heat of water =  4182 J/kg °C.

Hence,

Q = c . m . Δt

5000 = 4182 x 2.38892 x 10⁻² x (ta - 5⁰)

ta- 5⁰ = 50⁰

ta = 50⁰ + 5⁰ = 55⁰

Hence, the final temperature of the water is 55⁰C

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The term ballistic refers to a method of training, where the athletes' body or an external object is explosively projected into a flight phase and can, therefore, include exercises such as jumps, throws, or strikes.

Ballistic Technique It is the most traditional method of stretching exercises. This approach incorporates abrupt movements. Just rhythmic activities or movements around a joint can stretch a joint or a muscle. The proper warm-up is crucial before engaging in such a workout.

Ballistic stretching aims to push an object beyond its natural range of motion by using the momentum of a moving body or limb. By using your extended muscles as a spring to pull you out of the stretched position, you are "warming up" or stretching by bouncing into a stretched posture.

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The expression for the magnetic flux through a square of side 2x0 that lies in the x-y plane with one corner at the origin and two sides coinciding with the positive x and y axes is 8 B₀ x₀².

Given that,

Magnetic field B = B₀ (x/x₀) 2k^

Area element of the square in the problem dA = dx dy k^

Notice that the surface area lies on the xy - plane and the area vector is in the perpendicular direction of z-axis or A = k^. The limits of the area integral are both from 0 to 2 x₀.

Фb = B . A = ∫∫ B₀ (x/x₀) 2k^ dx dy k^

Фb = ∫∫ B₀ (x/x₀) 2 dx dy (k^.k^)

As, k^.k^ = 1

Фb = ∫∫ B₀ (x/x₀) 2 dx dy = 2 B₀/x₀ (∫ x dx) (∫ dy) = 2 B₀/x₀ (4 x₀²/2) (2 x₀) = 8 B₀ x₀²

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Answer:

According to C++ syntax, It's 50

The tall of the manometer when blood pressure is 190 mm Hg is 103.17 cm

To find fluid hydrostatic pressure, we can use the following equation :

P = ρgh

Where :

From the question, there are 2 information and assumption :

1. Height of mercury = 190 mm Hg

2. Since the manometer liquid is not clear, assume that the manometer was filled with water

Both water and mercury have the same hydrostatic pressure. So the equation will be :

ρw . g . hw= ρHg . g . hHg

Since both water and mercury have the same g, we can cancel the g. The equation will become :

ρw .  hw=ρHg . hHg

hw = ρHg . hHg / ρw

As known, below is the density for both liquid

Density of mercury = 5.43 g/cm³

Density of water = 1 g/cm3

So we can start to find the tall height of water filled manometer by solving the equation

hw = (190 mm) x (5.43 g/cm3) / (1 g/cm3)

     = 1031.7 mm

     = 103.17 cm

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A barge has vertical sides and measures 60 meters long by 10 meters wide. In fresh water, it is afloat. 6.00 million pounds are loaded onto the barge. The boat's hull does 50 cm sink into in the water.

Freshwater is defined as water with less over 1,000 milligrams of dissolved particles per liter, most frequently salt. Earth's surface water bodies are typically seen as renewable resources because they are a form of water.

The amount of fresh water on earth is 3%. 2.5% of the fresh water on earth is unavailable because it is highly polluted and trapped in ice, arctic ice caps, the ionosphere, and soil.

let it be h,

=V*d*g

=10*60*h*1000*g

10*60*h*1000*g = 300000*g

h=.5 m

=50 cm

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The acceleration of the airboat  is 2.2m/s^2 and starting from rest, it take the airboat to reach a speed of 12.0 m/s is 5.45s

Given mass of airboat (m) = 3.50 x 10^2kg

horizontal force of engine (F) = 7.70 x 10^2N

We know that from newtons laws of motion Force = mass x acceleration such that F = ma

(a) Now a = F/m = 7.70 x 10^2 / 3.50 x 10^2 = 2.2m/s^2

(b) Initial speed of airboat (u) = 0m/s

final speed (v) = 12m/s

We have acceleration a = 2.2m/s

Then we have another newtons law as: v = u+ at where t is the time taken

So t = v/a = 12/2.2 = 5.45s

Hence it takes to reach 5.45s a speed of 12m/s

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The angle at which the fourth order bright fringe appear on a viewing screen is 6.89°. If the wavelength is 750nm and distance between the two slits is 25um.

When the crest of a light wave coincides with the crest of another light wave then that interference is called as the bright fringe. The same thing happens with the dark fringe of light wave also, when the trough of one wave coincides with the trough of another wave then this results in the formation of dark fringes.

The angle of the bright fringe appear on a viewing screen can be calculated with the help of a formula:

sinθ = mλ/ d

where, θ = angle of bright fringe,

m = number of bright fringe,

λ = wavelength of the light wave,

d = distance between the two slits

sinθ = 4 × 750 × 10⁻⁹/ 25 × 10⁻⁶ = 0.12

θ = 6.89°

Therefore, the angle at which the fourth order bright fringe appear on a viewing screen is 6.89°.

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G proteins would continue to be inactive, preventing signal amplification.

Epinephrine receptors are not present in all cells. Only cells that have these receptors may react. Signal transduction may lead to modifications in gene expression and cellular operation, which may modify an embryo's phenotype.

By modifying the creation of proteins and enzymes, changes in signal transduction pathways change cellular responsiveness and have an impact on procedures such the binding of messenger molecules to receptors.

Protein kinase A is activated by cAMP's binding to it, allowing PKA to phosphorylate subsequent components and trigger a physiological response.

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The maximum thickness the film could have had is 12.6nm.

To determine the minimum thickness of a soap film made with a material of an index of refraction of n = 1.9, illuminated by white light and with a maximum reflected light at 350 nm, a simple calculation can be used.

The formula to calculate the minimum film thickness is given by: t = (mλ)/(4n) where m is an integer greater than 1, λ is the wavelength of the light at 350 nm, and n is the index of refraction equal to 1.9.

With these values, the minimum thickness of the soap film is calculated to be approximately 12.6 nm.

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Primarily in the ionosphere may one find electrically charged particles. Radio wave propagation can be impacted by the charged electrons and ions found in Earth's atmosphere.

The ionosphere really does have the crucial ability to reflect radio signals sent from the ground, as first seen in the early 1900s. Its existence explains how radio may connect people and places around the globe. Radio station transmissions can repeatedly bounce here between magnetosphere and the earth's surface.

There are numerous benefits of the ionosphere. It shields Earth's living things by absorbing those dangerous ultraviolet radiation. A portion of the waves arriving from Earth are also reflected by the particles of matter in the ionosphere. The stratosphere at particular scatters radio waves.

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There would be a new "year" that would last longer than two years on Earth.

The Earth's orbit would transform to an ellipse if the sun's mass doubled without pushing or pulling on the planet; this would bring the Earth out to its present radius but would spend most of its time closer to the sun.

The earth would move out into a far bigger orbit and it would take much longer to complete a round around the sun if the speed at which it moves in orbit were two times as fast as it is now (about 67,000 mph vs. real). Due to this.

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The power that is needed to lift a 49 kg person to a vertical distance of 5.0 meters in 20 seconds is 120 watts.

To calculate power, we can use this following formula:

P = W/t

Where:

“P” represents power, “W” represents work, and “t” represents time.

According to the data, we are given that:

Mass (m) = 49 kg

Height (h) = 5.0 m

Time (t) = 20.0 s

Acceleration due to gravity (g) = 9.8 m/s^2

First, we need to find the work done by using this following formula:

W = Mass x Height x Gravity

W = 49 × 5.0 × 9.8

W = 2,401

P = W/t

P = 2401/20.0

P = 120.05 W

Thus, the power needed to lift a person is 120 Watts

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By avoiding  single-use products and using reusable products, the waste problem can easily manageable.

Different strategies used by USC researchers to lessen waste include:

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Answer:

14 m/s

Explanation:

Correct number of sig dig will be two since accel has only two SD  ( you can only have as many SD as the factor with the LEAST SD)

v = at

  = 2 m/s^2 * 7 s = 14 m/s

Answer:

their low mass,low gravity and small molecular size

Answer:

1.5v

Explanation:

To find the electric potential difference across lamp 1, you will need to know the resistances of the lamps and the current flowing through the circuit. The electric potential difference across each lamp is equal to the current flowing through the lamp multiplied by the resistance of the lamp.

You can use Ohm's law to calculate the current flowing through the circuit. Ohm's law states that the current flowing through a conductor is equal to the electric potential difference across the conductor divided by the resistance of the conductor.

Once you have calculated the current, you can use the electric potential difference equation (voltage = current * resistance) to find the electric potential difference across each lamp.

Alternatively, you can use Kirchhoff's voltage law to solve for the electric potential difference across each lamp. Kirchhoff's voltage law states that the sum of the electric potential differences across all of the elements in a circuit is equal to the electric potential difference of the source. So, if the electric potential difference across lamps 2 and 3 is 4.8 V each, and the electric potential difference of the source is 10.9 V, then the electric potential difference across lamp 1 must be 1.5 V.

The 8 ball's velocity equals 2 m/s if both balls have a mass of 0.12 kg and the cue ball's velocity is 4 m/s after the collision.

When the ball strikes the white ball, what will happen to its momentum?

Momentum will remain constant regardless of the impact type. This implies that the overall momentum of all colliding objects prior to the collision will match the total momentum following the collision.

How is momentum conservation used in the game of pool?

All of the balls' momentum, which is the sum of their mass and velocity, must be preserved upon each contact. To put it another way, the overall momentum before and after the contact must be equal.

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The coefficient of kinetic friction turns out to be 0.534 whereas the coefficient of static friction is 0.595.

(a) mass = m = 6 kg

   g = 9.81 m/s^2

   F =  k m g

k = F / m g  = 35 / ( 6  * 9.81 ) = 0.595

The box can't move on its own because of static friction; this friction must be overcome by an opposing force that is strong enough for the box to move. When surfaces are moving, a force called kinetic friction, also known as dynamic friction, opposes the relative movement of the surfaces.

A force that holds an item at rest is called static friction. The friction that people experience when attempting to move a stationary object on a surface without actually causing any relative motion between the body and the surface is defined as:

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The time taken for the car to go from rest to 21 m/s is 3.2 seconds.

The acceleration of the car is determined by applying Newton's second law of motion as shown below.

Mathematically, the formula for Newton's second law of motion is given as;

F (net) = ma

where;

The net force acting on the car is calculated as follows;

F (net) = F - Ff

where;

F (net) = 38,900 N - 34,000 N

F (net) = 4,900 N

The acceleration of the car is calculated as follows;

a = F (net) / m

a = ( 4,900 N ) / ( 745 kg )

a = 6.58 m/s²

The time of motion of the car is calculated as follows;

v = u + at

v = 0 + at

v = at

t = v / a

t = ( 21 m/s ) / ( 6.58 m/s² )

t = 3.2 s

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The maximum force that we can exert horizontally on the crate without moving is 588 N. The result is obtained by using the Newton's first law.

Newton's first law states that every object will remain at rest or keep constantly moving in a straight line unless an external force acts upon it.

The equation of Newton's first law can be expressed as

∑F = 0

We have a 120-kg wooden crate resting on a wood floor. Find the maximum force that you can exert horizontally on the crate without moving it!

See the illustration picture in the attachment!

The maximum force will be

∑Fx = 0

F - fs = 0

F = fs

The friction force has the opposite direction with the force exerted.

This is the product of the coefficient of static friction and normal force.

The normal force is

∑Fy = 0

Fn - W = 0

Fn - mg = 0

Fn = mg

Fn = 120 × 9.8

Fn = 1,176 N

From the scientific data, the highest value of coefficient of static friction of wood on wood is 0.5. Let's use it to find the friction force (fs).

fs = μs × Fn

fs = 0.5 × 1,176

fs = 588 N

F = fs = 588 N

Hence, we can exert the maximum force of 588 N horizontally on the crate without moving.

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boat velocity relative to the ground is = 11.18 Km/h.

Full solution in pic.

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The city gets power when potential energy in the water becomes kinetic energy as it moves through turbines, which turn kinetic energy into mechanical energy that spins a generator, which changes mechanical energy into electricity. Option C

We know that energy can neither be created nor destroyed but we can be able to convert the energy from one form to another. This is also called the law of thermodynamics. This is the law that lies at the basics of the all the energy transformations that we have.

In this case, we are told that a city gets its electricity from a dam, where water is stored in a reservoir. This means that there ahs to be some energy conversions that would have to go on so that the city would get power and these must involve the water.

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Answer:

(Question) A city gets its electricity from a dam, where water is stored in a reservoir. How does the water provide the city with its power?

(Answer) Potential energy in the water becomes kinetic energy as it moves through turbines, which turn kinetic energy into mechanical energy that spins a generator, which changes mechanical energy into electricity.

(Question) An acorn rolls off a roof and falls to the ground. Which statement best describes the change in energy?

(Answer) The acorn’s potential energy decreases as its kinetic energy increases.

(Question) An airplane carries 320 passengers from Phoenix to Los Angeles flying at an average speed of 490 miles per hour. On the return flight, the plane carries 164 passengers and travels at the same average speed. What happens to the plane’s kinetic energy?

(Answer) On the return flight, the plane has less kinetic energy.

(Question) A racehorse is running at 42 miles per hour, equivalent to 18.8 meters per second. The horse and its jockey have a combined mass of 512 kilograms. How much kinetic energy do they have?

(Answer) 90,480.6 J

(Question) Which object has kinetic energy?

(Answer) balloon rising in the sky

(Question) Mr. Starr pushed a cart full of groceries to his car. After emptying the cart, he pushed it back to the store. He pushed the cart at a speed of 2 meters per second each way. Which is the best prediction?

(Answer) When it was empty, the cart had less kinetic energy.

(Question) A student fires a toy rocket into the sky. When does the rocket have the most potential energy?

(Answer) when the rocket reaches its highest point

(Question) What is the best description of one billiard ball hitting a second billiard ball?

(Answer) Most of the kinetic energy in the first ball is transferred to the second ball.

(Question) A roller-coaster car is at the top of a hill. The car and its passengers have a combined mass of 1,088 kilograms. If the hill is 62 meters tall, how much potential energy does the car have?

(Answer) 661,068.8 J

(Question) A roller-coaster is at the top of a 62-meter hill. The car and its passengers have a total mass of 1,088 kilograms. By the time the car reaches the bottom of the hill, its speed is 74 miles per hour (33 meters per second). How much kinetic energy does the car have at the bottom of the hill?

(Answer) 592,416 J

(Question) A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move forward and then backward after it is initially released. At which point in the diagram is all of the energy gravitational potential energy?

(Answer) when the swing is pulled back prior to release

(Question) essay

(Answer) good luck

(Question) essay

(Answer) good luck

Explanation:

I just finished this assignment.

The current in r2 is -1.25 A, found by using Ohm's law.

B. To find the current in r2, we can use Ohm's law, which states that the current flowing through a resistor is equal to the voltage across the resistor divided by the resistance. In this case, we are given that the voltage across r2 is 28 V and the resistance is 8ω.

So, the current in r2 is 28 V / 8ω = 1 A. Additionally, we can use Kirchhoff's current law which states that the sum of the currents flowing into a node in a circuit is equal to the sum of the currents flowing out of the node.

By using this we can also find that the current flowing in r2 = (e1 - e2)/(r1+r2+r3) = (8-28)/(6+8+2) = -20/16 = -1.25 A.

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If the car weighs 1500 kg, effective work done through friction factor against the wheels is -3.6 10⁵J.

Friction is a force that exists between area of contact that have been rolling or attempted to slide into one another. As an illustration, friction makes it difficult to push a book over the floor. Friction always moves an object in the opposite direction to the way it is moving.

Academics are unsure about what causes friction, despite the fact that it is thought to be produced by the interaction of minute bumps on objects as they rub against one another. The bumps of each material bend and press against one another.

v² = u² +2as

u= 22m/s

a =10m/s²

v = 0

0= 22² +2×10×s

s = - 484/20

s = - 24.2m

Work done = force × distance

Force = mass × acceleration

Work done = 1500×10× -24.2

= -3.6×10⁵J

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The statement, "if it were not for the inclination of earth's axis, there would be no well-defined seasons." is true.

Many people think that the July heat is brought on by Earth's close proximity to the Sun. They also believe that during the winter, Earth is furthest distant from the Sun. It is untrue. The Earth's orbit is not a complete circle, it is true. It is somewhat disproportionate. The Earth and Sun get closer to one another at different times during the year.

Nevertheless, there are winter and summer seasons in the Northern Hemisphere, with winter being the season when Earth is closest to the Sun. The imaginary pole known as the Earth's axis runs through the planet's center from "top" to "bottom." The planet circles fully around this pole every day. The seasons on Earth are impacted by the planet's tilt.

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The work done by a gas as it expands is given by the equation:

W = PΔV

where W is the work done by the gas, P is the pressure of the gas, and ΔV is the change in volume of the gas.

This equation is derived from the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system, minus the work done by the system.

This equation is often used to calculate the work done by a gas in a variety of contexts, such as the expansion of a gas in a cylinder with a movable piston or the expansion of a gas in a balloon. It is important to note that this equation assumes that the expansion of the gas is quasi-static, meaning that it occurs slowly and the temperature and pressure of the gas remain constant throughout the expansion process.

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The work done by a gas as it expands is given by the equation: W = PΔV where W is the work done by the gas, P is the pressure of the gas, and ΔV is the change in volume of the gas.

The work done by a gas as it expands is given by the equation: W = PΔV where W is the work done by the gas, P is the pressure of the gas, and ΔV is the change in volume of the gas. This equation is derived from the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system, minus the work done by the system. Work done in any of the object and in any of the field can be calculated by just simply multiplying of the measures because work done is the measure of the moving or changing of the position of the object from one place to another with respect to another object or any other quantity or any other measure of anything though which we can calculate just by multiplication. like wise we can find out the cell potential and the moving of a charge in a circuit from one point to another.  

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