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A current with sinusoidal time-dependence, whose peak value is 3.55 A and frequency is 775 cycles per second, passes through a long straight wire. A rectangular 18.2 cm × 8.19 cm loop of copper wire is located 20.2 cm from the wire and is coplanar with it. Calculate the average power dissipated by the loop, if its resistance is 64.3 ?.
A simple pendulum 2.0 m in length, is released at 25 degrees from the vertical. what is the speed at the bottom of the swing
an object is shown next to a lens of focal length 50cm. Given that the image is also shown on the right side of the lens, determine the image location
A proton is confined to a nucleus that has a diameter of 8.3 × 10-15 m. what is the minimum uncertainty in its momentum
A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .
A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0º above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to..
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin(2?t), Find the resonance angular frequency of the system
A researcher is trying to shoot a tranquilizer dart at a 1.8-m-tall rhino that is 150m away. What is the magnification of the telescope
An electron enters a magnetic field of 0.7 T, moving perpendicular to it with a speed of 5·105 m/s. If an electron were sent at the same speed, but at an angle of 70o to the magnetic field.
A magnifying glass uses a converging lens with a focal length of 15.5 cm. It produces a virtual and upright image that is 3.3 times larger than the object. How far is the object from the lens
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil, What is the width of the slit
what is the horizontal distance x to the base. find the average net force exerted on him in the barrel of the cannon.
An object that hangs form the ceiling of a staionary elevator by an ideal spring scilliates with a period T. If the elevator accelerates upward 2g , what will the period of oscillation of the object ?
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