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Point charges +2.0 nC and -5.0 nC are arranged on two vertices of an equilateral triangle. Find the magnitude and sign of third charge on the third vertice so that the potential at a point midway between the +2.0 nC point charge and the -5.0 nC point charge is equal to zero.
A rocket, away from all gravitational forces, accelerates upward at an acceleration of 12.8m/s^2. On its main deck is a crate with a mass of 81.6kg. a) How many forces act on the crate? b) Determine the Normal force on the crate, & c) What would the ..
An unstable particle with a mass equal to 3.34 multiplied by 10-27 kg is initially at rest. Find the masses of the fragments
A wagon is coasting at a speed vA along a straight and level road. When thirty-four percent of the wagon's mass is thrown off the wagon, parallel to the ground and in the forward direction, the wagon is brought to a halt. If the direction in which th..
A glass flask whose volume is 1000.33 at 0 is completely filled with mercury at this temperature. Compute the coefficient of volume expansion of the glass
The drawing shows a top view of a square room. One wall is missing,and the wall on the right is a mirror. From point P in the center of the open side, a laseris pointed at the mirrored wall.
Star formation appears to be promoted by sending shock waves through a dark cloud of the interstellar medium. Give two sources that can produce these shock waves.
Because it has the highest binding energy per nuclion of all nuclides, 62 over 32 Ni may be described as the most strongly bound. Its neutral atomic mass is 61.928349amu.
A hiker, who weighs 919 N, is strolling through the woods and crosses a small horizontal bridge. What is the magnitude of the force that a concrete support exerts on the bridge at the near end
An object is thrown upwards with a speed of 14 m/s. How high above the projection point does it reach
A uniform horizontal rod of mass (M) and length (l) rotates with angular velocity (omega) about a vertical axis through its center. Determine the angular momentum of the system about the axis
A 410 W Carnot engine operates between constant-temperature reservoirs at 98°C and 49°C. find the rate at which energy is exhausted by the engine as heat
Two blocks of mass m and 75 kg are connected via a light cord over a massless, frictionless pulley as shown in the attached figure. If the 75 kg block starts 2.0 m above the floor and takes 3.0 s to reach the floor when released from rest, what..
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