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A 19.6 centimeter diameter coil consists of 40 turns of circular copper wire 1.7 millimeter in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 8.64 x 10-3 T/s. Compute what the current in the loop.
With its double helix structure, DNA is coiled like a spring. A biophysicist grabs the end of a DNA strand with optical tweezers, What's the DNA spring constant
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.370mm wide. What is the width of the central bright fringe
A man is stationary and he observes that the rain is striking him at 60? from the horizantal. When he starts moving with a velocity of 25 m/s, then he observes that the rain strikes him at an angle of 30? from the horizantal. Calculate actual velo..
a clock balance wheel has a period of oscillation of 0.300 s. the wheel is constructed so that its mass of 10.0 g is
A small helium-neon laser emits red visible light with a power of 3.2 mW in a beam with a diameter of 2.5 mm. what is the total energy contained in a 1.00 m length of the beam
Find what is the spring constant of a spring that stretches 2.00 centimeter when a mass of 0.600 kilogram is suspended from it
A 1.5 m^3-volume tank holds oxygen gas (M = 32 g/mole) at the pressure of 500,000 Pa. The temperature is 27 C. Find the mass of oxygen in the tank (in kg)
A 65 g ice cube at 0°C is heated until 60 g has become water at 100°C and 5.0 g has become steam at 100°C. How much energy was added to accomplish the transformation?
Radioactive isotopes frequently occur together in mixtures. Assume a 400g sample contains, with a half-life of 12 days, and, with a half-life of 4.5 days. If there are firstly twice as many calcium atoms as there are barium atoms, what will be the ra..
The net external force on a golf cart is 401.4 Newton north. If the cart has a total mass of 275.5 kilogram, evaluate what is the cart acceleration
a solenoid of 200 turns carrying a current of 2 a has a length of 25 cm. what is the magnitude of the magnetic field at
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him, What is the force of friction between the losing player's feet and the grass
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