1. A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What

was the magnitude of its acceleration?

Amy swims 500 m (0.5 km) in 6 minutes (0.1 hour). What was her speed in kilometers per hour?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Background noise affects hearing tests. In the ticking watch test, what type of result, in terms of auditory sensitivity, would you have recorded if moderate background noise were present?

Two speakers face each other, and they each emit a sound of wavelength λ. One speaker is 180∘ out of phase with respect to the other. If we separate the speakers by a distance 1.

Parts of the brain

In a circuit, electrons travel in A. a circular path. B. different directions. C. alternating directions. D. the same direction.

Which explains upwelling in the oceans?

Explain in terms of the arrangement of particles the kinetic theory of matter

What is the rate at which energy is transferred?

A person is strolling along a moving walkway at a constant velocity of + 1.00 m/s with respect tot he walkway, which moves at a constant velocity of + 0.50 m/s with respect to the ground.