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On planet Tehar, the free-fall acceleration is the same as that on Earth, however there is also a strong downward electric field that is uniform close to the planet's surface. A 2.02 kg ball having a charge of 5.01 µC is thrown upward at a speed of 20.1m/s. It hits the ground after an interval of 4.10 s. What is the potential difference among the starting point and the top point of the trajectory? (Answer in kv)
A constant horizontal force Fa pushes a 1.50kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. gives package's x and y velocity components versus time t.
question a speedboat increases its speed uniformly from 20 ms to 30 ms in a distance of 200m. find a the magnitude of
A typical ten-pound car wheel has a moment of inertia of about 0.35kg?m2. What is the rotational kinetic energy K of the rotating wheel
(a) What is the velocity of the boat at t = 18.89 s? (b) Find the total displacement of the boat.
An amusement park ride consists of a rotating circular platform 8.00 meter in diameter from which 11.0 kilogram seats are suspended at the end of 2.50 meter mass less chains. Determine the speed of each seat
A groove on a monophonic phonograph record wigges laterally such tht its amplitude and frequency more or less ocresspond to the sound that is recorded. If at a given moment the needles is moving through the groove at 0.50 m/s, what would be the wiggl..
A proton is at the origin and an electron is at the point x= 0.35nm , y= 0.34nm .Find the electric force on the proton.
a uniform electric field of magnitude 450 nc pointing in the positive x-direction acts on an electron which is
A cable supports a uniformly distributed load. The max tension that the cable can withstand is 41 x 10^6 N. What min length of cable is needed
A 1.2 kilogram object moving with a speed of 8m/s collides perpendicularly with wall and emerges with a speed of 6m/s in the reverse direction. find the magnitude of the average force on object by wall
most of the suns energy comes from the proton-proton chain in which four hydrogen nuclei i.e. protons fuse into one
a student m 97 kg runs at a velocity vi 2.85 ms before jumping on a skateboard. after jumping on the board the
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