Which has the greater density, a lake full of water or a cup full of lake water?

What is Hook's law in elasticity

An electric field greater than about 3*106V/m causes air to break down (electrons are removed from the atoms and then recombine, emitting light).

A 0.50 kg toy car moves at constant acceleration of 2.3 m/s2. Determine the net applied force that is responsible for that acceleration.

A periodic transverse wave that has a frequency of 10 Hz travels along a string. The distance between a crest and either adjacent trough is 2.5 m. What is the wavelength?

A 10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. They are then released so that the spring pushes the two carts apart. The 10.0 kg cart is moving at 4.5 m/s afterward. How fast is the 15kg cart moving? 3.

If a platinum wire has a resistance of 15 Ω and is connected across the terminals of a 3.0 V flashlight battery, how much current is in the wire? 1.0 amps 5.0 amps 7.5 amps 0.20 amps

What is a closed path of flowing electrons called?

Which group of quantities below consists only of scalar quantities? which group of quantities below consists only of scalar quantities? average speed, displacement, time interval?

Is this good? Its for a science test ~ The process of natural selection happens in nature when organisms slowly change overtime to adapt to their environment.

The diagram below shows the forces acting on a box. Describe the motion of the box. Calculate all forces