HEY CAN ANYONE PLS HELP ME OUT IN DIS PLS

Answer:

2.8 m 7.4 m/s

Explanation:

write all the values then use the equations of motion to find the distance and speed. please see attached photo

Answer:

The horizontal component of the force, [tex]F_x= 34.24 \ N[/tex]

The  vertical component of the force, [tex]F_y=7.28 \ N[/tex]

Explanation:

Given;

Force on the rope, F = 35 N

angle between the rope and the horizontal = 12 °

The horizontal component of the force is given by;

[tex]F_x = Fcos \theta\\\\F_x = 35cos(12^0)\\\\F_x = 34.24 \ N[/tex]

The vertical component of the force is given by;

[tex]F_y = Fsin\theta\\\\F_y = 35sin(12^0)\\\\F_y = 7.28 \ N[/tex]

Answer:

hey hey bnaddy

Explanation:

Answer:

a) Both stones hit at the same time, b) Stones A and B will land at a distance of [tex]2.26\sqrt{y_{o}}[/tex] and [tex]0.452\sqrt{y_{o}}[/tex] meters, respectively.

Explanation:

Each stone experiments a parabolic motion, that is, the combination of a horizontal motion at constant velocity and a vertical uniform accelerated motion due to gravity. We know that each stone is launched horizontally  at the same height and from the same initial position.

The equations of motion for each stone are described below:

Stone A

[tex]x_{A} = x_{o} + v_{A,o}\cdot t_{A}[/tex]

[tex]0 = y_{o} + \frac{1}{2}\cdot g\cdot t_{A}^{2}[/tex]

Stone B

[tex]x_{B} = x_{o} + v_{B,o}\cdot t_{B}[/tex]

[tex]0 = y_{o} + \frac{1}{2}\cdot g\cdot t_{B}^{2}[/tex]

a) Which stone hits the ground first?

The stone that hits the ground first has the lowest time.  If we know that [tex]v_{A,o} = 5\,\frac{m}{s}[/tex], [tex]v_{B,o} = 1\,\frac{m}{s}[/tex], [tex]x_{o} = 0\,m[/tex] and [tex]g = -9.807\,\frac{m}{s^{2}}[/tex], then the equations of motion are reduced into this:

Stone A

[tex]x_{A} = 5\cdot t_{A}[/tex] (Eq. 1)

[tex]y_{o} -4.905\cdot t_{A}^{2}= 0[/tex] (Eq. 2)

Stone B

[tex]x_{B} = t_{B}[/tex] (Eq. 3)

[tex]y_{o} -4.905\cdot t_{B}^{2}= 0[/tex] (Eq. 4)

From (Eq. 2) and (Eq. 4), we get that [tex]t_{A} = t_{B}[/tex].

Both stones hit at the same time.

b) Where do they land?

From (Eq. 2) and (Eq. 4), we get:

[tex]y_{o} = 4.905\cdot t^{2}[/tex]

The time is cleared within the expression:

[tex]t =\sqrt{\frac{y_{o}}{4.905} }[/tex]

[tex]t \approx 0.452\sqrt{y_{o}}[/tex]

And from (Eq. 1) and (Eq. 3), we get the following equations of motion:

[tex]x_{A}= 5\cdot t[/tex]

[tex]x_{B} = t[/tex]

The horizontal distance taken by each stone is calculated by direct substitution on each expression:

[tex]x_{A} = 2.26\sqrt{y_{o}}\,m[/tex]

[tex]x_{B} = 0.452\sqrt{y_{o}}\,m[/tex]

Stones A and B will land at a distance of [tex]2.26\sqrt{y_{o}}[/tex] and [tex]0.452\sqrt{y_{o}}[/tex] meters, respectively.

Answer:

It will make it hot or cold

Explanation:

Answer:

The correct answer is "The reactions stop once equilibrum is achieved"

Explanation:

A system is said to have attained equilibrium when the rate of forward reaction is the same/equal to the rate of backward reaction.  The reaction below shows a chemical reaction that is at equilibrium

2N₂O₅ (aq) ⇄ 4NO₂ (aq) + O₂ (aq)

An equilibrium reaction is always a reversible reaction. When the system is at equilibrium (when there is a balance), the concentration of the reactants and products do not change despite the fact that reaction does not stop; what happens however is that the rate at which the reactant(s) are formed (backward reaction) will be equal to the rate at which the product(s) are formed (forward reaction).

From the explanation above, it can be deduced that "The reactions stop once equilibrum is achieved" is a misconception about a system in chemical equilibrium.

In astronomy and geography, a direction or plane is said to be horizontal if it is perpendicular to the vertical direction. In mathematics, anything parallel to the horizon is called horizontal. Because vertical is the opposite of horizontal, anything that makes a 90-degree angle (right angle) with the horizontal or the horizon is called vertical. So, the horizontal line is one that runs across from left to right.

Answer:

The methodology employed by Galileo contributed to the development of Physics by find moons of Jupiter. (I think)

sorry if it's wrong

Answer:

yes

Explanation:

Answer:

45 m / s North is a valid vector reading for an object.

Explanation:

Then velocity will be defined by x km / hr North. And, magnitude of velocity defines the speed of the body. Although this tells the speed, but there is no description for the direction, so it's not a vector reading

45 m/s north is a valid velocity reading for an object. So, the correct option is B.

Velocity is explained as displacement in a given amount of time which is a vector quantity, meaning it has both magnitude and direction. When a body travelling on a straight path at a speed of x km / hr in North, then the velocity will be defined by x km / hr North.

Options like 45m/s, 0 m/s north and 0 m/s are speed, null velocity and speed respectively, as it tells speed, but no description for direction, so it is not a vector reading. 45 m / s North tells about the speed as well as its direction and the magnitude of velocity.

Thus, 45 m/s north is a valid velocity reading for an object. So, the correct option is B.

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Your question is incomplete, most probably the complete question is:

Which is a valid velocity reading for an object?

Answer:

F = 0.84 [N]

Explanation:

In order to solve this problem we must take into account Newton's second law, which tells us that the sum of all forces applied on a body must be equal to the product of the mass of the body by its acceleration.

F = m*a

where:

F = force [N]

a = acceleration = 1.4[m/s^2]

m = mass = 0.6 [kg]

F = 0.6*1.4

F = 0.84 [N]

Answer:

Underwater or at the pool.

Explanation:

Sound travels 4.3 times faster then on land but you can't hear as well because it becomes distorted, but you can still hear the sound.  

Answer:

Water has higher specific heat capacity compared to copper. This means that water needs to absorb more heat energy to increase it's temperature by 1 °C. Therefore, water needs longer time to release heat energy due to higher amount of heat energy stored inside the water.

Answer:Im doing that same quiz rn and i just put A

Explanation:

this is because EM energy is produced when electrically charged participles vibrate generating an electric filed and a magnetic field which sends out an EM wave.

i hope this helped

The weight of the person is 931 Newtons.

Given:

The mass of the person is 95 kilograms

To find:

The weight of the person in Newtons.

Solution:

Mass of the person = m = 95 kg

The accleration due to gravity = g = 9.8 m/s^2

The weight of the person = W

[tex]Weight=Mass \times \text{(Acceleration due to gravity)}\\\\W = m\times g\\\\W = 95 kg\times 9.8 m/s^2=931 N[/tex]

The weight of the person is 931 Newtons.

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Answer:

mass is something that takes up space and weight is how much mass something has

A student puts a beaker of boiling water where it touches a block of ice. The two true statements are that the thermal energy will move from the boiling water to the ice and the thermal energy will move from the air to the ice. Therefore the correct options are options A and option B.

It is a temperature at which the pressure exerted by the external atmosphere is equal to the vapor pressure of the substance.

The boiling point depends on atmospheric pressure, temperature, bond strength, and vapor pressure of the liquid.

As the water is boiling it means it has more thermal energy contained in it than the surrounding air and the ice is present at zero degrees.

As we know that heat is always transferred from the higher thermal potential to the lower thermal potential and as the boiling water has the higher thermal potential among the ice and the surrounding air thermal energy will move from the boiling water to the ice and the thermal energy will move from the air to the ice. Therefore the correct options are options A and option B.

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Answer:

gravitational force

Explanation:

Explanation:

Newton's first law of motion states that a body at rest remains at rest, or, if in motion, remains in motion at a constant velocity unless acted on by a net external force. This is also known as the law of inertia. Inertia is the tendency of an object to remain at rest or remain in motion.

Explanation:

Inertia is the tendency of an object toremain at rest or, if moving, to continue its motion in a straight line at uniform velocity.

Object will remain at rest or move at uniform velocity unless acted upon by an external force

Hope this is correct and helpful

HAVE A GOOD DAY!

Answer:

Friction

Explanation:

Well things that rub off of each other reacts friction

Answer :A testable prediction is also known as a hypothesis.

Explanation: I think

A testable prediction is a hypothesis. (a)

Consciousness is still a controversial issue among psychologists and philosophers is a true statement.

You experience everything as consciousness. It is the song that keeps playing in your head, the sweetness of chocolate mousse, the agonizing pain of a toothache, the passionate love you have for your child, and the painful realization that these emotions eventually pass.

From the earliest ages of antiquity till the present, the origin and nature of these experiences, also referred to as qualia, have remained a mystery.

Many contemporary analytic philosophers of mind, probably most notably Daniel Dennett of Tufts University, claim that consciousness is an illusion because they find it to be such an awful affront to what they feel should be a meaningless cosmos of matter and the void.

Therefore, Consciousness is still a controversial issue among psychologists and philosophers is a true statement.

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Answer:

a

Explanation:

b, c, and d are all opinion based, a is the only one that you need factual evidence and observations.

Satement A is the only one for which you require factual information and observations; B, C, and D are all opinion-based options (A) is correct.

Statistics is a mathematical tool defined as the study of collecting data, analysis, understanding, representation, and organization. Statistics is described as the procedure of collecting data, classifying it, displaying that in a way that makes it easy to understand, and analyzing it even further.

It is given that:

The question statement is:

Which question requires the collection of data to answer it?

A. How much water does a peach tree require to produce fruit?

B. Are peaches more delicious than apricots?

C. Do peaches go better with ice cream or yogurt?

D. Why is peached such popular fruit?

From the above statements, A is the only one for which you require factual information and observations; B, C, and D are all opinion-based.

As we know, the act of acquiring and analyzing data on certain variables in an established system allows one to analyze results and respond to pertinent inquiries.

In all academic disciplines, including the physical and social sciences, the humanities, and business, data collecting is a necessary component of research.

Thus, statement A is the only one for which you require factual information and observations; B, C, and D are all opinion-based options (A) is correct.

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Answer:

1,395 m

Explanation:

155×9

multiply m/s by 9s

Answer:

0.43 m/s, forward

Explanation:

i just took the test

A 50 kg boy runs and jumps with a forward velocity of 1.5 m/s into a 125 kg stationary boat, then the final velocity of the boy boat system would be 0.43 meters per second in the forward direction, therefore the correct answer is option A.

It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.

As given in the problem A 50 kg boy runs and jumps with a forward velocity of 1.5 m/s into a 125 kg stationary boat, then the final velocity of the boy boat system,

By using the conservation of the momentum for the boy boat system,

50 × 1.5 + 0 = 175 × v

v = 75/175

v = 0.43 meters / second

Thus, the final velocity of the boy boat system would be 0.43 meters / second in the forward direction.

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Answer:

200000 years

Explanation:

The disk of our home galaxy – the Milky Way – is bigger than we previously thought. A new study shows it would take 200,000 years for a spaceship traveling at the speed of light to go across the entire galaxy.