The direction of the current in an alternating current circuit

remains constant.

is direct.

changes repeatedly.

changes randomly.

Will a non-metal replace a metal?

How would you describe the shape of the trajectory of a projectile

A toy mouse has a mass of 10 kg and kinetic energy of 5 j what is its speed

Brainliest! A student wanted to answer the question, "How does the amount of glycerin affect the size of a bubble blown with soap mixture of water, dish soap and glycerin?".

If the height of the ramp was 1.2 m above the floor, how long would it take for the marble to hit the ground after it left the ramp?

How do most primary producers make their own food?

The maximum kinetic energy of photoelectrons is 3.10 ev. when the wavelength of the light is increased by 50%, the maximum energy decreases to 1.50 ev. part a what is the work function of the cathode?

Which of the following most completely describes an objects motion? A. a car travels 25 miles. B. The baby crawls 10 feet in 15 seconds toward the door. C. A marble rolls 10 m to the left D. The rain falls at a rate of one inch per hour

Why is the use of carbon-14 limited

Why do cell sometimes need to use active transport?