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Two kids are fighting over a toy. One pulls it with a force of 4 N[West]. The other pulls it with a force of 3 N[East]. What is the net force acting on the toy?
During a crash test, a car moving at 60 km/ hr collides with a rigid barrier and comes to a complete stop in 200 ms, Find the total impulse imparted by the collision, Find the average collisional force
What is the work done on the system by the external force? What is the work done by the field on the particle? What is the change in the potential energy of the system?
A mechanic jacks a car up to an angle of 6.0 degree to change the front tires. The car is 2.9 meter long and has a mass of1130 kilogram. Find the torque exerted by the car around the back wheels
A gold prospector finds a solid rock that is composed solely of quartz and gold. Find the mass of the gold in the rock
Determine the pH of a store bought vinegar. pKa of acid is 4.75. [answer=2.56]
Compute the voltage drop along a 26 m length of copper wire which has diameter 1.665 mm and carries a 15 A current
The thrust produced by a single jet engine creates a force of F = 63000 N. It takes the jet (with a mass of m = 9300 kg) a distance of d = 0.75 km to take off. What is the take-off speed of the jet vt in m/s
A thin metallic spherical shell of radius 41.6 cm has a total charge of 8.05 ?C uniformly distributed on it. At the center of the shell is placed a point charge of 2.83 C. What is the electric field at a distance of 23.9 cm from the center of the ..
a cart of mass mc is being pulled by an object of mass mw. assume friction is negligible.a how many forces are acting
find the force exerted by the rope on the bucket. A metallic object is given the negative charge by the process of induction. What happens to object's mass.
A soccer ball is at rest on the ground 32 m away from a fence. A boy kicks the ball towards the fence w/ a velocity of 20 m/s at 37 degrees above ground level. The fence is 2.5 m high. Ignore air resistance. Decide how much time it takes for the ball..
a container of ideal gas for which the thermal energy is given by eth 2.6 n r t is initially at pressure pi 1.1 x
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