In the design of a supermarket, there are to be several ramps connecting different parts of the store. customers will have to push grocery carts up the ramps, and it is obviously desired this not be too difficult., an engineer has done a survey and found that almost no one complains if the force required is no more than 50 n. will a slope θ = 5o be too steep, assuming a 30 kg grocery carts (full of groceries)? assume friction (wheels against ground, wheel on the axles, and so on), can be accounted for by a coefficient μk = 0.10
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Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
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Physics, 22.06.2019 14:30
A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.
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Physics, 23.06.2019 01:00
2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?
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Physics, 23.06.2019 02:00
How does changing the frequency affect the energy of the wave?
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In the design of a supermarket, there are to be several ramps connecting different parts of the stor...
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