A stone is thrown upward from ground level. With what minimum speed should the stone be thrown so as to reach a height of 100 feet? ... ?

You weigh 716 newtons on Earth. You travel to a newly discovered planet, Planet X. Planet X has a mass that is 3 times that of Earth, but it also has a radius that is twice as large. What is your new weight in newtons on planet x?

A 100 kg roller coaster car is located at the top of a hill where the height is 20 m. What is the velocity when it reaches the bottom of the hill? 5.5 m/s 11.2 m/s 16.7 m/s 19.8 m/s

Scientific notation 325

What is the effect of food color in the amount of food fish eat

A bob of mass of 0.18 kilograms is released from a height of 45 meters above the ground level. What is the value of the kinetic energy gained by the bob at the ground level? A: 2.4 joules B: 5.1 joules C: 8.1 joules D: 10.0 joules

A motorist driving at 25 meters/second decelerates to 15 meters/second. The combined mass of the vehicle and the driver is 1.5 * 10³ kilograms. What is the amount of mechanical work done by the vehicle?

All forces are different each exerts a particular type of effect on an object

Witch statement about polymers is true

Two bullets have masses of 3,0 g and 6.0g, respectively. both are fired with a speed of 40.0 m/s. Which bullet has more kinetic energy? What is the ratio of their kinetic energies

What does it mean that a form of energy might take more energy to harness than it provides? Are renewable resources always renewable, or can they become non-renewable? Why aren't renewable resources used for everything that we use energy for?