A toy rocket with a mass of 300 g takes off in a vertical direction under the influence of gravity. it burns fuel at the rate of 25 g/s. the exhaust speed of the gases is 80 m/s. what is the speed of the rocket at the end of 10 seconds?

A 2.0-kg ball has a momentum of 25kg. m/s what is the ball's speed?

Which of the following provides evidence that geologic activity occurred in the past on Earth's Moon? a) the revolution of the Moon around the Earth b) the axial tilt of the Moon c) the phases of the Moon d) the presence of solidified lava flows on

If a person traveled 475 miles at a rate of 74 miles per hour. how long did they travel for?

If total (PE + KE) is conserved:

Which actions are part of a system of methodical tests and refinements specific to technological design? A. Documenting, tinkering, testing B. Tinkering, presenting, testing C. Testing, documenting, presenting D. presenting, tinkering, testing

Which of the following do not involve a direction? Check all that apply. A. Time B. Velocity C. Distance D. Acceleration

What does deltaX mean in physics?

Which activity involves using fossil fuels directly or indirectly? 1) eating fresh fruit for a snack 2) cooking hot dogs on a campfire 3) using crayons to color 4) walking to school

Which of the following objects would have the most inertia? A. A sphere with a radius of 5 cm and a mass of 34 grams. B. A sphere with a radius of 4 cm and a mass of 15 grams. C. A sphere with a radius of 8 cm and a mass of 27 grams. D.

A boy slides a book across the floor using a force of five and over a distance of 2M what is the kinetic energy of the book after he slides at assume there is no friction