3. A student wishes to calculate the acceleration of a stopper tied to the end of a string. She whirls the stopper at constant speed in a horizontal circular path of radius R. She measures and records the value of R. The stopper
completes ten complete revolutions in a time interval an. The student calculates the time period, T, for one
complete revolution. What additional information is needed to calculate the centripetal acceleration of the
stopper
A No additional information
B) The mass of the stopper
C)The tension in the string
D)The frequency of the stopper

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Atruck travels at an average speed of 70 km/hr. if it travels 100 km in the first hour, how far will it go the second hour of a 2 hour trip? if you could also give me the steps that would great.