When a pot of water is put on a stove, the water at the top gets hot primarily by ____.a. radiation
c. convection
b. conduction
d. condensation

Certain materials can become superconductors under what conditions?
a. When it is very hot
c. Under very high pressure
b. When it is very cold
d. Under very low pressure

A stone is thrown horizontally at 8.0 m/s from a cliff 78.4 m high.  The distance from the base of the cliff does the stone strike the ground is 64 m.

What is distance?

Distance is defined as the entire path traveled by an object in motion, regardless of journey direction. Three sight distances are primarily taken into account in the geometric design of road construction. Things that can be measured in terms of length include the dimensions of a section or a room. Distance is the separation between two things, like two cities or two points. There will never be a negative value for either length or distance.

A projectile is an object that is launched vertically into the air and moves while being pulled by gravity. A horizontally launched object that defies gravity is referred to as a projectile.

Thus, a stone is thrown horizontally at 8.0 m/s from a cliff 78.4 m high.  The distance from the base of the cliff does the stone strike the ground is 64 m.

To learn more about distance, refer to the link below:

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Answer:

Let's solve these two problems step by step:

1. The acceleration of the car:

You can use the formula for acceleration, which is:

\(a = {v - u}/{t})

where:

- \(a\) is acceleration,

- \(v\) is final velocity (10 m/s in this case),

- \(u\) is initial velocity (0 m/s since the car starts from rest), and

- \(t\) is time (2 seconds).

Plugging in the values:

\(a = {10 m/s - 0 m/s}/{2 s} = {10 m/s}/{2 s} = 5 m/s²)

So, the acceleration of the car is 5 m/s², which corresponds to option B.

2. The final velocity of an object starting from rest with an acceleration of 3.0 m/s² after a certain time:

You can use the following kinematic equation:

\(v = u + at)

where:

- \(v\) is the final velocity (which you want to find),

- \(u\) is the initial velocity (0 m/s since it starts from rest),

- \(a\) is the acceleration (3.0 m/s²), and

- \(t\) is the time (you haven't provided this value).

If you provide the value of time, I can calculate the final velocity for you.