Which refers to the ratio of output force to input force of a machine? mechanical advantage
average strength
total power
energy requirement

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

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?