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A rectangular loop of wire carrying a 4.0 Amp current is located in a magnetic field of 0.60 T. The magnitude of the torque acting on this wire when the plane of the loop makes a 30 degree angle with the field is measured to be 1.1 N•m. Evaluate what is the area of this loop?
A 900 N c rate s lides 12 m down a ramp that makes an angle of 3So with the horizontal. how much thermal energy is created
Explain by how much horizontal force F must a sprinter of mass 62.0 kg exert on the starting blocks to produce this acceleration?
Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
a sound wave travels twice as far in neon ne as it does in krypton kr in the same time interval. both neon and krypton
Two different balls are rolled (without slipping) toward a common finish line. Their angular speeds are shown to the right. how long does each ball take to reach the finish line
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 64 kg person develops a power of 65W throughout a race, how fast is the person running? Assume that a running step is 1.5 m long.
When a3.0µF capacitor is connected to a generator whose rms output is29V, the current in the circuit is observed to be0.30A. What is the frequency of the source
There are some people who believe that Earth has a twin that orbits directly opposite the sun with exactly the same orbital elements and in the saem direction and thus unseen from Earth. The two planets are exactly 180 degrees opposed when they oc..
An electron of the hydrogen atom is initially in the n = 2energy state. The electron absorbs a blue-violet photon with wavelength of 486 nm. The Rydberg constant is 1.097 x107/m. What is the energy state (n-number) of the electron after the absorptio..
a 9.5-uC charge is at x = 15 cm, y = 5.0 cm and a -3.2-uC charge is at x = 4.4 cm, y = 11 cm. Find the force on the negative charge
Snow is falling vertically at a constant speed of 5.0 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car travelling on a straight, level road with a speed of 20 km/h?
In the figure, a laser beam of power 5.10 W and diameter 2.20 mm is directed upward at one circular face (of diameter less than 2.20 mm) of a perfectly reflecting cylinder, What is the cylinder's height
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