Ralph wants to move a 60.0\text{ kg}60.0 kg60, point, 0, start text, space, k, g, end text sofa. He applies a force of 480\text{ N}480 N480, start text, space, N, end text. Under these conditions, the sofa initially moves with an acceleration of 3.20\,\dfrac{\text{m}}{\text{s}^2}3 .20 s 2 m 3, point, 20, start fraction, start text, m, end text, divided by, start text, s, end text, squared, end fraction. Calculate the friction force on the sofa.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2