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A charge of - 0.580uC exerts an upward force of magnitude 0.170N on an unknown charge which is a distance of 0.300m directly below it. A) What is the unknown charge (magnitude and sign)? Use 8.85×10?12C^2/(Nm^2) for the permittivity of free space. B) What is the magnitude of the force that the unknown charge exerts on the charge of magnitude 0.580uC? C) What is the direction of the force that the unknown charge exerts on the charge of magnitude 0.580uC?
Sam (85 kg) takes off up a 50-m-high, 10° frictionless slope on his jet-powered skis. The skis have a thrust of 240 N. He keeps his skis tilted at 10° after becoming airborne. How far does Sam land from the base of the cliff.
What is final speed of the block
How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than as the car is stationary? The speed of sound is 343 m/s.
A 1.70 kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall.
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Conclude the volume of each cube.
Four objects are situated along the x axis as follows: a 1.70kg object is at -0.9m, a 1.60kg object is at 0.2m, a 2.4-kg object is at the origin, and a 2.50kg object is at -1.10m.
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
A set of 20 stairs, each of 20-cm height, is ascended by a 700 N man in a period of 1.25 s. Compute the mechanical work, power, and change in potential energy all through the ascent. I have 2800J. Where do I go from here.
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
A 2 kg projectile is fired with an initial speed of 135 m/s at an angle of 68° with the horizontal. At the top of its trajectory, the projectile explodes into two fragments of masses 0.72 kg and 1.28 kg. At 3.8 s after the explosion, the 1.28 kg f..
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
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