An object moving in a straight line changes its velocity uniformly from 2m/s to 4 m/s over a distance of 12 m. What was its acceleration? (A) 0.5 m/s^2 (B) 1 m/s^2 (C) 2 m/s^2 (D) 3 m/s^2

What happens as dolphins grow up?

Complete this sentence. The electrical conductivity will When the size of the sample increases A decrease B stay the same C increase D be unable to be determined

A cylindrical capacitor is made of two thin-walled concentric cylinders. The inner cylinder has radius 8 mm, and the outer one a radius 11 mm. The common length of the cylinders is 152 m.

The rate at which speed changes is called

The symbol for speed is v and the symbol for time is t. If v = 13t + 11, then what is t?

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called A. reflection B. constructive interference C. the Doppler effect D. refraction

Along with an alpha particle what other product is produced in the alpha decay of americium-241

What does Newton's second law of motion say

Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00m-1, an angular frequency of ω=2.50s-1, and a period of 6.00 s, but one has a phase shift of an angle ϕ=π12rad.

Which season does the Southern Hemisphere experience when it is tilted toward the sun? A. winter B. summer C. spring D. autumn