10/04/22

physics question
An 8.0kg block is being pulled up a rough incline by a 20 N force. The incline makes an angle of 37 with respect to the horizontal and the coefficient of kinetic friction between the block and the... more
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10/04/22

physics question
A satellite with a mass of 80kg is in a circular orbit around the Moon. The satellite is a distance of 5.0 x 105 m above the surface of the Moon. (MMOON = 7.4 x 1022 kg, RMOON = 1.7 x 106 m) a.... more
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10/03/22

Vf^2=Vi^2+(-g)(Yf-Yi)
Maximum Height derive from kinematic formula
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10/03/22

Determine the distance and time for each particle to acquire a kinetic energy of 3.2×10−16J. 3.2 × 10 −16 J .

An electron and a proton, each starting from rest, are accelerated by the same uniform electric field of 200 N/C. Determine the distance and time for each particle to acquire a kinetic energy... more
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10/03/22

(a) Does the proton reach the plate? (b) If not, how far from the plate does it turn around?
From a distance of 10 cm, a proton is projected with a speed of 𝑣=4.0×106m/s directly at a large, positively charged plate whose charge density is 𝜎=2.0×10−5C/m2. (a) Does the proton reach the... more
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10/02/22

projectile motion
A baseball player hits a home run over the left-field fence, which is 105 m from home plate. The ball is hit at a point 1.00m directly above home plate, with an initial velocity directed 31.0º above... more
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09/28/22

Physics problem (momentum)
A 0.58 kg softball has a velocity of 13 m/s at an angle of 29° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball while it is... more
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09/27/22

What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that velocity is a vector)?

A person throws a rock straight downwards off a cliff with an initial speed of 13.0m/s13.0m/s. What is the velocity of the rock when it is 5.10m5.10m below the starting point (remember that... more
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