A 10 kg package is delivered to your house.

Use one complete sentence to describe an example of how work is done on the package as it gets brought inside.

Make sure to use proper spelling, grammar, and other language mechanics.

In your explanation, make sure to use the terms related to the formula for work (W = Fd). EEEK pls help !!!

Answer:

You've got the formula so when the multiplication is done (40,000,000×5)=200,000,000kg m/s

Answer:

The approximate velocity the rocket must have to stop the asteroid completely after the collision is;

C. -324 m/s

Explanation:

The parameters of the asteroid and the rocket are;

The mass of the asteroid, m₁ = 11,000 kg

The initial velocity with which the asteroid is approaching Earth, v₁ = 50 m/s

The mass of the rocket, m₂ = 1700 kg

The initial velocity of the rocket = v₂

The final velocity of the combined asteroid and rocket after the collision, v₃ = 0 m/s

By the law of conservation of linear momentum, we have;

The total initial momentum = The total final momentum

m₁·v₁ + m₂·v₂ = (m₁ + m₂)·v₃

Substituting the known values, we get;

11,000 kg × 50 m/s + 1,700 kg × v₂ = (11,000 kg + 1,700 kg) × 0 m/s

11,000 kg × 50 m/s + 1,700 kg × v₂ = 0

∴ 1,700 kg × v₂ = -11,000 kg × 50 m/s

v₂ = (-11,000 kg × 50 m/s)/(1,700 kg) = -323.529412 m/s ≈ -324 m/s

The approximate initial velocity the jet must have to completely stop the asteroid after the collision is -324 m/s.

Answer:

b. Comfortable pair of athletic shoes.

Explanation:

Analyzing the information and the options, the fitness product that would most assist Sergio in reaching his weight loss goals would be the pair of comfortable sports shoes, which he could use to do running exercises.

For beginning practitioners it is ideal to start exercising with short 30-minute walks until the body adapts and you gain physical conditioning and endurance.

Running has the advantage of being an excellent exercise that can be practiced anywhere, and helps in the production of dopamine, which produces a feeling of well-being and also helps in reducing hunger, in addition to working and strengthening various muscle groups in the body, activate blood circulation, decrease anxiety, improve cholesterol levels, control blood pressure, etc.

Answer:

b. Comfortable pair of athletic shoes.

Explanation:

Answer:

C. 4.0 J

Explanation:

Work is equal to the change in kinetic energy or kinetic energy final - kinetic energy initial. 1/2 mv^2 is the equation for kinetic energy. SInce the mass is the same, you don't have to include it when solving. 1/2 times 1^2 = 1/2. 1/2 times 3^2 = 4.5. 4.5 - 0.5 = 4 J

Answer:

a = 7.4 m / s²

Explanation:

The centripetal acceleration of an object that has constant speed is

         a = v² / r

linear and angular velocity are related

         v = w r

let's substitute

         a = w² r

the angular velocity is related to the period

        w = 2π / T

we substitute

        a = [tex]\frac{4\pi ^2 \ r}{T^2}[/tex]

let's calculate

        a = 4π²  3.00 /4²

        a = 7.4 m / s²

Answer:

the world would just slide forever

Explanation:

A frictional force exists when two objects come in contact with each other. It opposes motion, meaning if something is sliding on the floor, friction is the force that makes it eventually come to a stop. In a world without friction, the object would continue to slide forever, if not acted on by another force.

Answer:

20kilograms

Explanation:

GPE = MGH

2000 = M × 10m/s2 × 10

100m= 2000

m = 20kg ( Answer)

Answer:

The acceleration of the box is 2.05 m/s²

Explanation:

The given parameters of the motion of the box are;

The mass of the box, m = 50 kg

The pulling force, [tex]F_p[/tex] acting on the box = 200 N

The angle at which the force acts, θ = 30° above the horizontal

The coefficient of kinetic friction, [tex]\mu_k[/tex] = 0.25

The normal reaction from the box resting on a flat surface, N = The weight of the box, W - The vertical component of the pulling force, [tex]F_{py}[/tex]

N = W -  [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ)

Where;

g = The acceleration due to gravity = 9.8 m/s²

∴ N = W  - [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ) = 50 kg × 9.8 m/s² - 200 N × sin(30°)

∴ N = 490 N - 200 N × 0.5 = 390 N

The normal reaction, N = 390 N

The force of friction, [tex]F_f[/tex] = The coefficient of kinetic friction, [tex]\mu_k[/tex] × The normal reaction, N

∴ [tex]F_f[/tex] = [tex]\mu_k[/tex] × N = 0.25 × 390 N = 97.5 N

The net force, [tex]F_{NET}[/tex], acting on the block = The pulling force, [tex]F_p[/tex] - The friction force, [tex]F_f[/tex]

∴  [tex]F_{NET}[/tex] = [tex]F_p[/tex] - [tex]F_f[/tex] = 200 N - 97.5 N = 102.5 N

[tex]F_{NET}[/tex] = 102.5 N

According to Newton's second law of motion on the net force acting on an object, we have;

[tex]F_{NET}[/tex] = m × a

Where;

a = The acceleration of the box

∴ a = [tex]F_{NET}[/tex]/m = 102.5 N/(50 kg) = 2.05 m/s²

The acceleration of the box = a = 2.05 m/s².

Answer:

the velocity is 1.67 m/s

Explanation:

The computation of the velocity of the arrow/ice combination after the collison is shown below:

Here the law of conservation is applied

[tex]p_i = p_f\\\\m_av_a+m_b+v_b= (m_a + m_b)v[/tex]

Here

[tex]m_a = 2.0 kg\\\\v_a = 10m/s\\\\m_b = 10 kg\\\\v_b = 0[/tex]

Now

[tex]v = \frac{m_av_a+ m_bv_b}{m_a + m_b} \\\\= \frac{(2.0kg) (10 m/s) + 0}{2.0kg + 10.0kg}[/tex]

= 1.67 m/s

hence, the velocity is 1.67 m/s

Answer:

water and air

Explanation:

The examples of medium from this problem is water and air.

A medium is an agency or a means of propagating energy, waves or even facilitating a chemical reaction.

Fluids are very good medium in chemistry for chemical reactions. The two most common media used are air and water.

In physics, a vacuum is an empty space that has been evacuated. It also serves as a medium to study some physical phenomenon.

Explanation:

The buoyant force must be greater to float, otherwise it would sink, its like a barrel in water, the more water weight in it the more it sinks, the more air weight the more it rises.

Answer:

true

Explanation:

Answer:

force gravitational attraction =18.69×10^-14

hope it helps.

Answer:

Mass = 16.67kg

Explanation:

Given the following data;

Velocity = 4.5m/s

Momentum = 75kgm/s

To find the mass;

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

Momentum = mass * velocity

Substituting into the equation, we have

75 = mass * 4.5

Mass = 75/4.5

Mass = 16.67kg

Therefore, the ball's mass is 16.67 kilograms.

The ball's mass will be "16.67 kg".

Momentum seems to be the product of a subatomic particle mass as well as the velocity. Momentum would be vector quantity, which means it does have a magnitude as well as an orientation.

In contrast, a particle's momentum seems to be a measurement it takes for a continuous force to bring that one to remainder.

According to the question,

Velocity = 4.5 m/s

Momentum = 75 kg.m/s

By using the formula,

→ Momentum = Mass × Velocity

or,

→           [tex]Mass = \frac{Momentum}{Velocity}[/tex]

By substituting the values,

                       [tex]= \frac{75}{4.5}[/tex]

                       [tex]= 16.67 \ kg[/tex]

Thus the above answer is right.

Find out more information about momentum here:

https://brainly.com/question/6391301

The change that should arise at the time when an atom undergoes alpha decay is that nucleus loses mass and a new element is produced.

It is the type of radioactive decay where the atomic nucleus should be emitted an alpha particle and due to which it transforms and it should be distinct atomic nucleus.

Therefore we can say that The change that should arise at the time when an atom undergoes alpha decay is that nucleus loses mass and a new element is produced.

Learn more about an atom here: https://brainly.com/question/13373048

Answer:

Distance-0

Displacement-0

Explanation:

She spun in place and fell in her exact placement she didnt move and distance or displace any area

Mali loves to make herself dizzy, so she spins in place 7 times at a particular place, then the distance and displacement will be equal to zero.

The complete movement of an object, regardless of direction, is referred to as a distance. The amount of ground a thing travels from its starting point to its destination is also referred to as distance. A distance can alternatively be thought of as a scalar quantity, meaning that it is independent of an object's motion's direction.

The term "displacement" simply describes how an object's location has changed. For instance, when an object travels from point A to point B, displacement has taken place. A vector quantity with both magnitude and direction is displacement.

Hence, distance and displacement covered by Mali will be zero.

To know more about distance and displacement :

https://brainly.com/question/3243551

#SPJ2

Answer:

0.75Hz

Explanation:

Given parameters:

Speed of the wave = 3m/s

Wavelength  = 4m

Unknown:

Frequency of the wave  = ?

Solution:

The speed of a wave is given by the expression below:

     Speed  = frequency x wavelength

  Frequency  = [tex]\frac{Speed }{Wavelength}[/tex]   = [tex]\frac{3}{4}[/tex]    = 0.75Hz

Answer:

4761J

Explanation:

Given parameters:

Mass of the ball  = 18kg

Velocity before it hits the water below = 23m/s

Unknown:

Kinetic energy of the ball  = ?

Solution:

Kinetic energy is the energy due to the motion of a body. It is mathematically expressed as:

  Kinetic energy  = [tex]\frac{1}{2}[/tex] m v²  

m is the mass

v is the velocity

 So;

  Kinetic energy  =  [tex]\frac{1}{2}[/tex]  x 18 x 23²  = 4761J

Answer:

Do you have a list of all the energies?

Bomb exploding would use chemical reaction (ammonium nitrate for ex), then thermal energy from heat generated, then kinetic energy from the blast overpressure/schockwave.

Answer:

ϟ [tex] \huge{ \boxed{ \purple{ \text{Simple \: Machine}}}}[/tex]

⤥ We use different types of devices in our life to make our work easier. A spade is used to dig , a broom is used to sweep , a hammer is used to pass a nail on the wall and a plank is used to drag a load up to a certain height. All these simple things or devices , which are used in our daily life are called simple machines. Such simple machines do not do our work themselves but we have to use force on them to work with them. Thus , Simple machines are those tools or devices which make our work easier and convenient to do in the direction of force.

Hope I helped ! ッ

Have a wonderful day / night ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Explanation:

a simple machine is a device having simple structure which makes our work is a faster and more convenient.

hope it helps

Answer:

Answer:

v = 61.54 km/h

Explanation:

The average speed of the car can be found by using the total distance covered by the car and the total time taken for that distance to be traveled. Therefore, the average speed of the car can be found by the following formula:

[tex]v = \frac{d}{t}\\[/tex]

where,

v = average speed during the trip = ?

d = total distance driven by the car = 1200 km

t = time taken for the traveling = 19.5 hr

Therefore,

[tex]v = \frac{1200\ km}{19.5\ hr}\\\\[/tex]

v = 61.54 km/h

Answer:

a.) 20 km east

b.) 50 km west

c.) 80 km west

Explanation:

As given,

Railway station -     A            B              C

Distance(km) -       0            30             60

Starts from A , train reaches B be in 15 minutes

Starts from A , train reaches C be in 30 minutes

a.)

If A is origin

As train covers 30km = 15 minutes

⇒ 15 minutes = 30 km

    1 minute = [tex]\frac{30}{15} = 2[/tex] km

⇒ 10 minutes = 2×10 = 20 km

∴ we get

The position of the train moving from station A to station B after 10 minutes = 20 km east

b.)

If B is origin then , the position of  the train moving from station A to station B after 10 minutes = 30 + 20  = 50 km west

( Because B is the origin , so firstly train go from B to A in 15 minutes ( 30 km ) then A to B in 10 minutes (20 km) )

c.)

If C is the origin then , the position of  the train moving from station A to station B after 10 minutes = 60 + 20  = 80 km west

( Because C is the origin , so firstly train go from C to A in 30 minutes ( 60 km ) then A to B in 10 minutes (20 km) )

Answer:

hope it helps...

Explanation:

Both the water in the ocean and the air in the atmosphere exert pressure because of their moving particles. ... This causes greater pressure. Denser fluids such as water exert more pressure than less dense fluids such as air. The particles of denser fluids are closer together, so there are more collisions in a given area.

Answer:

The age of the organism is approximately 11460 years.

Explanation:

The amount of carbon-14 decays exponentially in time and is defined by the following equation:

[tex]\frac{n(t)}{n_{o}} = e^{-\frac{t}{\tau} }[/tex] (1)

Where:

[tex]n_{o}[/tex] - Initial amount of carbon-14.

[tex]n(t)[/tex] - Current amount of carbon-14.

[tex]t[/tex] - Time, measured in years.

[tex]\tau[/tex] - Time constant, measured in years.

Then, we clear the time within the formula:

[tex]t = -\tau \cdot \ln \frac{n(t)}{n_{o}}[/tex] (2)

In addition, time constant can be calculated by means of half-life of carbon-14 ([tex]t_{1/2}[/tex]), measured in years:

[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex]

If we know that [tex]\frac{n(t)}{n_{o}} = 0.25[/tex] and [tex]t_{1/2} = 5730\,yr[/tex], then the age of the organism is:

[tex]\tau = \frac{5730\,yr}{\ln 2}[/tex]

[tex]\tau \approx 8266.643\,yr[/tex]

[tex]t = -(8266.643\,yr)\cdot \ln 0.25[/tex]

[tex]t \approx 11460.001\,yr[/tex]

The age of the organism is approximately 11460 years.

Answer:

8

Explanation:

Answer:

Nitrous oxide

Nitrous oxide, often called laughing gas, makes a serious impact on the Earth.