A tight rope walker falls from the tight rope and it’s a safety net. It take .25 seconds for her to stop moving. The net provided an impulse of 250 n*s of force. What was the force that the tight rope walker hit the net. Variables:
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The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?