At what frequency does the driver of the car hear the ambulance's siren? The velocity of sound in air is 343 m/s.

1) A change in momentum is the result of an

All stars appear to wander off their star paths.

I this example: Convection, Radiation, or Conduction The kitchen gets warm when someone uses the oven.

Sergei tees off on a stationary hockey puck using his most powerful slap shot. If he can exert a force of 250 N on the 500 gram puck for a time of 0.

An atom with an imbalance of electrons to protons is

Imagine a 15 kg block moving with a velocity of 20 m/s to the left. Calculate the kinetic Energy of this block. Show the equation, your work, and the answer with units:

Brainliest (02.02 LC) What is most likely to happen during erosion? Carrying away of sediments to distant places Settling down of sediments in new locations Dissolving of rocks by chemicals in water Wearing of rocks by wind-blown sand

Recall that the previous hint stated that the magic number is 15*x, where x is a number between 1 and 10. Specifically x is an even number between 1 and 10. Try to guess the value of x.

What is the electric potential of a 2.2 µC charge at a distance of 6.3 m from the charge? Recall that Coulomb's constant is k = 8.99 * 109 N • ___ V What is the electric potential at a distance of 99 m from the charge?___ V

A skier is traveling down a slope that is inclined 30° above the horizontal. The coefficient of kinetic friction between the skier and the slope is 0.10. Which of the following best describes the acceleration of the skier? A) It is zero.