Acar is traveling 80 km/h. if the car s speed remains constant ,how far will it have traveling in3 hours

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little