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Question: The drawing shows an equilateral triangle, each side of which has a length of 2.65 cm. Point charges are fixed to each corner, as shown. The 4.00 C charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of 427 N. Determine (a) charge qA, (b) charge qB.
An object moving with uniform acceleration has a velocity of 10.0 cm/s in the positive x-direction when its x-coordinate is 3.09 cm. If its x-coordinate 3.05 s later is ?5.00 cm, what is its acceleration?
A car travels along a straight line at a constant speed of 53.5 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 34.0 mi/h. What is the constant speed wi..
a 7.75- g bullet from a 9-mm pistol has a velocity of 397.0 ms.it strikes the 0.785- kg block of a ballistic pendulum
a sample of lead has a mass of 40.00 kg and a density of 1.130 x104 kgm3 at 0degc. assume the average linear expansion
a solenoid used to produce magnetic fields for research purposes is 2.5m long with an inner radius of 30cm and 1200
The minimum distance required to stop a car moving at 38.0 mi/h is 41.0 ft. What is the minimum stopping distance for the same car moving at 68 mi/h, suppose the same rate of acceleration.
A stone is thrown vertically upward with a speed of 12.3 m/s from the edge of a cliff 84.6m high. What is the speed just before hitting.
A particle is moving with a certain speed. Its speed and momentum are being measured with respect to Earth. What was the original speed of the particle
Light goes from material having a refractive index of n1 into a material with refractive index n2. If the refracted light is bent away from the normal, what can you conclude about the indices of refraction?
What is the terminal speed for an 76.0kg skier going down a 38.0? snow-covered slope on wooden skis ?k= 0.060
An electron on the axis of an electric dipole is 23 nm from the center of the dipole. What is the magnitude of the electrostatic force on the electron if the dipole moment is 4.0 10-29 C·m? Assume that 23 nm is much larger than the dipole charge sepa..
Galaxy A is measured to be receding from us with a speed of 0.75c. Galaxy B, located in precisely the opposite direction, is found to be receding from us at a speed of 0.85c. a) What recessional speed would an observer on Galaxy A find for our galaxy..
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