What is the mass of an object traveling at 20 m/s with a kinetic energy of 4000 J?

How do the measurements of charge at the different locations on the sphere compare to each other?

If you slide down a rope, it's possible to create enough thermal energy to burn your hands or your legs where they grip the rope. Suppose a 30 kg child slides down a rope at a playground, descending 1.5 m at a constant speed.

How do nuclear power plnts generate the heat energy to turn water into steam?

Anyone want to get a conversation going again? lol

The acceleration of a particle moving only on a horizontal xy plane is given by, where is in meters per second-squared and t is in seconds. at t = 0, the position vector locates the paticle, which then has the velocity vector. at t = 2.

Describe the factors that form deep currents

A comet is cruising through the solar system at a speed of 50000 kilometers per hour for 4 hours time. What is the total distance traveled by the comet during this time in kilometers, miles, and light years?

A gas in a closed container is heated with 12J of energy, causing the lid of the container to rise 3m with 5N of force. What is the total change in energy?

What are illuminated objects?

During one year a population of blue jays has zero population growth. which must be true about the blue jay population at the end of the year compared to the beginning of the year?