A 45 kg swimmer starting from rest can develop a maximum speed of 12 m/s over a distance of 20 m. How much net force must be applied to do this?

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?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Which branches of natural science include the study of an organism that lived 10 million years ago