A22 kg sled is pushed for 5.2 m with a horizontal force of 20 n, starting from rest. ignore friction. find the final speed of the sled.
2.2 m/s
4.7 m/s
9.5 m/s
3.1 m/s

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?

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?

Aball horizontally thrown from a cliff at 8m/s