Which wheel and axle would allow a load of rocks to be dragged with less force?

Two wheel and axles

A. Wheel and axle A.

B. Wheel and axle B.

C. Both devices would require the same amount of force.

D. Not enough information

If a spring stretches 3 cm when a 2 kg mass is hung from it, how far will it stretch when a 6 kg mass is hung from it? Show work. Use hooke's law.

Kate is working on a project in her tech education class. She plans to assemble a fan motor. Which form of energy does the motor convert most of its electric energy into? A. light energy B. motion energy C. sound energy D. thermal energy

The barrel of a rifle has a length of 0.886 m. A bullet leaves the muzzle of a rifle with a speed of 623 m/s.

Which best describes the shape of a convection current

A hockey puck moving at 0.4600 m/s collides with another puck that was at rest. The pucks have equal mass. The first puck is deflected 38.00° to the right and moves off at 0.3400 m/s.

Why might an electromagnet be used to pick up old cars in junk yards? a. Electromagnets are inexpensive and easily create revenue. b. Electromagnets are powerful and can be turned on and off easily. c.

The average radius of Mars is 3,397 km. If Mars completes one rotation in 24.6 hours, what is the tangential speed of objects on the planet's surface? Round your answer to the nearest whole number.

A car with a mass of 1,500 kg doubles its speed from 50 km/h to 100 km/h. by how many times does the kinetic energy of the car increase

3. Is there a way to dissolve more sugar into a solution that it should hold at that temperature? Explain how this is done and what the solution would be called.

Like matter, energy cycles continuously through an ecosystem. a. True b. False User: Like matter, energy cycles continuously through an ecosystem. True or False