An aluminum rod and a nickel rod are both 5.00 m long at 20.0° C. The temperature of each is raised to 70.0°. What is the difference in length between the two rods?

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

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)