As a roller coaster car starts down a slope, it's velocity is 4m/s. But 3 seconds later it's velocity is 22m/s in the same direction. What is its acceleration

Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

A turbine blade rotates with angular velocity ω (t) = 8.00 rad/s - 0.20 rad/s3 t 2. what is the angular acceleration of the blade at t = 6.8 s?

When a force causes an object to move in the direction of the force blank occurs

A bullet of mass 0.0021 kg initially moving at 497 m/s embeds itself in a large fixed piece of wood and travels 0.65 m before coming to rest. Assume that the acceleration of the bullet is constant. What force is exerted by the wood on the bullet

What is the impulse of a 4kg object accelerating from 10m/s to 12m/s?

The correctly balanced equation for H2O2 → H2O + O2 is

How would an unbalanced chemical equation convey misleading information about what took place during a chemical reaction?

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic