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A falling rock has an acceleration of about 10 meters/second2. If the force of gravity on the rock is 40 newtons, what is the mass of the rock? F=MA use M= F/A
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
All of these are transverse waves EXCEPT
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
Radio waves have _____________________________.
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
One side of a claw hammer can be used to pound nails into a board. The other side can be used to pry nails out of a board. What type of simple machine is the part of the hammer that removes nails?
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
Work is only done when ___________________________________.
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
The length from rest to crest is the?
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
Speed can be calculated by dividing distance by time. What would your average speed be if it takes you one-half hour (hr) to travel 10 kilometers (km)?
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
Which simple machine allows a person to lift heavy objects straight up by pulling down on a rope?
lever
the force exerted on an object is in the same direction as the object’s motion.
4kg
pulley
Amplitude
sound
low frequencies and long wavelengths
20 km/hr
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