True or False?

Atoms of the same element can have

different numbers of neutrons and

electrons.

Vehicles are designed with both plastic and elastic values to absorb energy forces in a manner that will reduce the direct forces that reach the vehicle occupants

A man climbs a wall that has a height of 8.4 meters and gains a potential energy of 4,620 joules.

The figure shows Atwood's machine, in which two containers are connected by a cord (of negligible mass) passing over a frictionless pulley (also of negligible mass).

The fact that parts of the sun spin at varying speeds is referred to as differential rotation. true false

How long do comets last?

Why is a block of gold is more dense than a block of iron of equal size?

How much work is required to uniformly accelerate a merry-go-round of mass 1490 kg and a radius of 7.80 m from rest to a rotational rate of 1 revolution per 8.33 s? Model the merry-go-round as a solid cylinder (I = ½ MR2).

What percentage of North American adults may be functioning below their potential due to prolonged exposure to stress

Give a example of frequency which an elephant can hear and a tiger cannot hear include a unit in ansawer

Why do you keep moving forward when you slam on the brakes of your bike?