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Question: A current of 8.71 A in a long straight wire produces a magnetic field of 4.99 µT at a certain distance from the wire. Find the distance (m).
If possible just a brief explanation how you got the answer?
A star is moving away from Earth at a speed of 2.3 108 m/s. What is the wavelength as measured by an Earth observer
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to measure distance and time accurately. What is the mass of this canister
A satellite is in a circular orbit around the Earth at an altitude of 1.68 106 m. Find the acceleration of the satellite
How do you measure the mass of an astronaut in orbit? (You can't just use a scale!) For the Skylab program, What is the mass of the astronaut
A 1.50 V battery supplies 0.350 W of power to a small flashlight for 20.0 min. How much charge does it move
A string that is fixed at both ends has a length of 2.28 m. When the string vibrates at a frequency of 85.7 Hz, a standing wave with five loops is formed. (a) What is the wavelength of the waves that travel on the string? (b) What is the fundamental ..
monochromatic light falls on a screen 1.90 m from two slits separated by 2.07 mm. the first- and second-order bright
A 109 V potential difference is applied to a space heater whose resistance is 12 when hot. At what rate is electrical energy transferred to heat
A hollow sphere is rolling along a horizontal floor at 5.50 m/s when it comes to a 31.0 degree incline. How far up the incline does it roll before reversing direction
A 73.7-kg person puts on a life jacket, jumps into the water, andfloats. What is the density of the life jacket
A 17.0-m length of hose is wound around a reel, which is originally at rest. The moment of inertia of the reel is 0.490kg·m2, and its radius is 0.160 m. When turning, friction at the axle exerts a torque of magnitude 3.20 N·mon the reel.
a wave of amplitude ai and wave number ki is incident on the junction of two strings. if the wave number in the second
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