Physics, 23.11.2019 04:31 lexieprochaskaaa
One end of a string is attached to a ball, with the other end held by a student such that the ball is swung in a horizontal circular path of radius r at a constant tangential speed. at a later time, the tension force exerted on the ball remains constant, but the length of the string is decreased to r4. what is the new tangential speed of the ball?
a. four times the original speed
b. two times the original speed
c. half the original speed
d. one-fourth the original speed
Answers: 1
Physics, 21.06.2019 18:10
Amass has an acceleration of 10- 2t. what is its velocity and displacement if it started at x- 4m and the initial velocity was 8m/s? at what time does it have 0 velocity? graph all graphs.
Answers: 2
Physics, 21.06.2019 23:30
Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
Answers: 1
Physics, 22.06.2019 04:30
Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?
Answers: 3
Physics, 22.06.2019 22:30
Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.
Answers: 1
One end of a string is attached to a ball, with the other end held by a student such that the ball i...
Mathematics, 12.02.2020 01:35
Physics, 12.02.2020 01:36
Mathematics, 12.02.2020 01:36
Computers and Technology, 12.02.2020 01:36