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An object is thrown vertically upward with an initial velocity of 14.7m/s
a) how long does it take for the object to be 9.8m from its initial position?
b) what is the instantaneous velocity at 9.8m from its initial position?
c) Explain why two answers arise for parts (a) and (b).
A particle with a mass of 1.00 10-5 kg and a charge of +2.3 µC is released in a (parallel-plate) uniform horizontal electric field of 16 N/C. A. How far horizontally does the particle travel in 0.46 s
A 4.5 volt battery is connected to a buld with a resistance of 1.6 ohm. How many electrons leave the battery per second
A horizontal force of 142 N pushes a 11 kg block up a frictionless incline that makes an angle of 44° with the horizontal. find the normal force that the incline exerts on the block
Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V
Suppose we have an electron that is initially at rest in a uniform electric field with a magnitude of 7320 V/m. How fast is the electron moving at the position where it has moved the 14.0 cm above
Two boxes with different masses M1 = 0.7 kg and M2 = 2.3 kg are tied together on a frictionless ramp surface, What is the tension in the rope connecting the two boxes
Objective questions based on force and acceleration.
A novice skier, starting from rest, slides down a frictionless 34° incline whose vertical height is 128 m. How fast is she going when she reaches the bottom.
If a particle that had a charge q=6 micro C and mass 0.2 grams that moves in an uniform external electric and also magnetic fields that are E= ( 2Î +3? +9?) N/C, what is the magnitude of the particles acceleration
Object A is acted on by only object B. The mass of object A is 20.0 kg and its acceleration is 4.00 m/s2 west. Object B is acted on by two forces, the force of object A on object B and another unknown force.
A 75 kg skater, starts at 6m above the ground, potential energy =0 at 2m above the ground. Calcualte the percentage difference between the two speeds
Water flows at the rate of 3.02 kg/s through a hose with a diameter of 3.08 cm. What is the speed of water in this hose, what is the speed of water in the nozzle
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