A girl runs up the down escalator in the mall. If the escalator is moving with a

velocity of 24 m/min and the girl is running with a velocity of 30 m/min, how far up the escalator can she go in 4 minutes?

A. 10 m

B. 30 m

C. 48 m

D. 24 m

An object moving at 31m/s takes 6s to come to a stop. What is the object's acceleration?

Is it possible for a distance-versus-time graph to be a vertical line? Explain.

A curve of radius 40 m is banked so that a 1100 kg car traveling at 40 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. The acceleration of gravity is 9.81 m/s 2.

4. Identify Problems A student is describing a longitudinal wave in his notebook. He writes down "The distance between crests is 3 cm." What is wrong with what the student recorded?

If a wave travels 16 meters in 2 seconds, what is its wave speed?

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9

Which describes nuclear fusion? The nuclei of two atoms combine to form a larger nucleus. The nucleus of one atom splits to form two smaller nuclei. The electrons of two atoms combine to form a cluster of electrons.

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement