A child and sled with a combined mass of 50.0 kg slide down a frictionless slope. if the sled starts from rest and has a speed of 4.00 m/s at the bottom, what is the height of the hill? m

In which of the following examples does the object have both kinetic and potential energy? Select all that apply.

What is the difference between hypothesis, theory and scientific law?

In the first law of thermodynamics what does q mean

A common isotope of iron-56 has an atomic number of 26. The total number of subatomic particles in the nucleus is? A. 26 B. 56 C. 82 D. 30

If a car is moving along the highway at a constant speed of 50 m/s, is there an unbalanced force acting on the car? How do you know? Explain using one of Newton's Laws.

What is not a factor that affects the viscosity of magma?

While driving his 600-kg ultra-compact electric car, a distracted driver starts crossing a drawbridge. Not realizing that the drawbridge is about to open, he ends up in the river below with his car.

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire