You record the length of different people's feet is this an example of a controlled experiment true or false

When copper combines with oxygen to form copper oxide, the charge of the copper ion is

Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its motion? A ball with a mass of 5 kg B ball with a mass of 10 kg C ball with a mass of 15 kg D ball with a mass of 20 kg

The coefficient of linear expansion of iron is 1.0 * 10-5 per C◦. The surface area of an iron cube, with an edge length of 5.0 cm, will increase by what amount if it is heated from 10◦ C to 60◦ C

You've been called in to investigate a car accident by the Bluffs. A car went over a 7.93 meter high cliff and fell so that it hit the ground 26.7 meters from the base of the cliff.

What is the atmosphere of Ganymede made up of?

2. Weight is a force from gravity pulling down on any object with mass. True False

A 0.9 kg football is thrown with a velocity of 22.0 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.06 seconds. What is the force exerted on the receiver?

water waves carry particles of water in the same direction that the wave is traveling. True or False?

Two objects of different masses are sitting on different balance scales. Object A has a greater mass than object B. How will the weights of the objects compare to each other?

Does an object that feels cold to the touch contain thermal energy Explain your answer