Both slicing a tomato and burning toast cannot be reversed, so why is slicing a tomato only considered a physical change?

An oscillator creates periodic waves on a stretched string. If the period of the oscillator doubles, what happens to the wavelength and wave speed? a. The wavelength doubles but the wave speed is unchanged. b.

A 60 tooth gear is connected to a 24 tooth gear. If the smaller gear turns 10 times, how many times does the larger gear turn

A bullet traveling at 5.0 X 10^2 meters per second is brought to rest by a 50 newton * second impulse. what is the mass of the bullet?

The temperature at witch the velocity of sound in oxygen gas becomes equal to the velocity of sound in hydrogen gas at 0c is 1) 0c 2) 273c 3) (273 x 4) c 4) (273 x15) c 5) (273x16) c

Two bumper cars in an amusement park ride collide elastically as one approaches the other directly fromthe rear. Car A has a mass of 435 kg and car B a mass of 495 kg, owing to differences in passenger mass. Ifcar A approaches at 4.

The basic building block of life is

What is the reason for Mary's resemblance to her mother. Mary's relatives and friends feel she had her mothers feature

Is a balance scale used to describe how much matter is in an object

At distances greater than 2 femtometers, the nuclear strong force is stronger than (select all that apply): gravity electromagnetic forces nuclear weak force none of the above

Identifying the Functions of Parts of the Ear Which part of the ear changes sound to a signal that the brain can understand? Which part of the ear carries the signal to the brain?