Physics, 13.01.2021 18:50, Corykids6080
Numerical:
1. A ball of mass 0.2kg falls from a height of 45m. on striking the ground it rebounds in 0.1 sec
with two third of the velocity with which it struck the ground. Calculate (i) the momentum
change on hitting the ground, (ii) the force on the ball due to the impact.
Answers: 3
Physics, 22.06.2019 01:30, kayleetruman
The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection
Answers: 2
Physics, 22.06.2019 09:50, trobbie817
A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p
Answers: 1
Physics, 22.06.2019 20:30, aliviafrancois2000
We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.
Answers: 2
Numerical:
1. A ball of mass 0.2kg falls from a height of 45m. on striking the ground it rebounds i...
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