Physics, 18.10.2019 18:00 igotdiss2178
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. suppose a 60 kg runner completes a 5.0 km race in 19minutes.
determine the drag force on the runner during the race. suppose that the cross section area of the runner is 0.72 m2 and the density of air is 1.2 kg/m3.
what is this force as a fraction of the runner's weight?
Answers: 1
Physics, 21.06.2019 22:30
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.
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Physics, 22.06.2019 01:40
In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.
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Physics, 22.06.2019 09:00
The material that keeps its new shape after it is stretched is called?
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