At what average rate does force from the cable do work
The loaded cab of an elevator has a mass of 2.8 x 103 kg and moves 223 m up the shaft in 26 s at constant speed. At what average rate does the force from the cable do work on the cab?
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An automobile with a mass of 940 kg goes around a curve with a radius of 64m.The coefficient of friction between the tires and the road is 0.700. What is the maximum speed with which the car can go around the curve ?
Use the graphical method to find the magnitude and direction of the third displacement.
An 83 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 81 cm. What is the speed of the arrow as it leaves the bow?
If it takes a fish 0.20s to perform evasive action, ? Assume the fish is at the surface of the water.at what minimum height must it spot the pelican to escape
What term describes the layer of partly decayed plant matter at the top of the soil profile in most forested areas?
Describe the Z and T Test for comparing differences between means, Explain what is needed to perform each test, the process for each test, and what the results will tell a researcher.
A 4.5kg dog stands on an 18 kg flatboat at distance D=6.1m from the shore. It walks 2.4m along the boat toward shore and the nstops Assuming no friction between the boat and the water, find how far the dog is then from the shore.
What are some of the ways groups of people are identified? Why do people label and group other people?
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Hi Sierra, great examples of physical, cognitive, and social-emotional activities we can use to encourage children in playful ways.
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