8. A sprinter on a school track team is running north at a velocity of 6.0 m/s. After 5.0 s, she

is running south at 4.0 m/s. Calculate the average acceleration for this interval.

The is a factor that's affected by changes in the independent variable

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1. Hold one end of a meter stick down firmly on a table so that 20 centimeters of the meter stick extends past the edge of the table. Pluck the end of the meter stick that extends past the table to produce a vibration and a sound as shown.

An object's natural frequency depends partially on the material from which it is made.

22) The sensory cells associated with the deep layers of the epidermis are A) Pacinian corpuscles. B) Merkel cells. C) melanocytes. D) Meissner's corpuscles. E) keratinocytes.

Two football players collide on the field. Before the collision, their total momentum was 450 kgm/s to the north. What is their total momentum after the collision? A. More than 450 kgm/s north B. 450 kgm/s north C. Less than 450 kgm/s north D.

Jane and John Doppler effect

If you combine 430.0 ml of water at 25.00 °c and 140.0 ml of water at 95.00 °c, what is the final temperature of the mixture? use 1.00 g/ml as the density of water. s

While working out, a man performed 200 j of work in 3 seconds. What was his power?

A funnel-shaped low pressure closure