Physics, 18.12.2019 01:31 suttonfae336
Two pucks of equal mass collide. one puck (puck a) is stationary before the collision. after the collision the puck that was initially stationary moves along in the same direction in which the puck that hit it (puck b) was initially moving. which of the following statements is correct if the total energy of the system is conserved during the collision (elastic collision)?
a. the puck b rebounds.
b. there isn’t enough information to answer the question.
c. both pucks slide past the point of collision.
d. the puck b remains at the point of collision.
Answers: 3
Physics, 21.06.2019 19:00
Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .
Answers: 3
Physics, 22.06.2019 02:00
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
Physics, 22.06.2019 11:00
I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.
Answers: 1
Physics, 22.06.2019 23:00
The average time that it takes for the car to travel the first 0.25m is s. the average time to travel just between 0.25 m and 0.50 m is s. given the time taken to travel the second 0.25 m section, the velocity would be m/s.
Answers: 1
Two pucks of equal mass collide. one puck (puck a) is stationary before the collision. after the col...
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