The auroras occur in the

a. troposphere

c. mesophere

b. stratosphere

d. ionosphere

It feels better to catch a hard ball while wearing a padded glove than to catch it bare handed. use the ideas of momentum and impulse to explain why?

Why was the idea of continental drift not initially accepted by many other scientists and the general public at the time?

The existence of a magnetic field around a current carrying conductor can be demonstrated by placing the conductor near Group of answer choices a compass a pith ball a battery an electroscope

What acceleration is produced by a force of 2000 N and 1000 kilogram car

A biologist keeps a specimen of his favorite beetle embedded in a cube of polystyrene plastic. The hapless bug appears to be 2.0 cm within the plastic. Part A) What is the beetle's actual distance beneath the surface?

A measure of the energy of motion of the particles in a substance is its

What is the final velocity of the combined bumper cars A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180 kg blue bumper car. The red and blue bumper cars combine and hit a stationary green bumper car of mass 150 kg.

0.4-L glass of water at 20°C is to be cooled with ice to 5°C. The density of water is 1 kg/L, and the specific heat of water at room temperature is c = 4.18 kJ/kg·°C. The specific heat of ice at about 0°C is c = 2.11 kJ/kg·°C.

Regions in a sound wave where particles are farthest apart are called

What will happen to thermal condictivity of a substance if its thickness is doubled? Also give reason.