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A coil has 460 turns andself-inductance 3.45 mH. The currentin the coil varies with time according to i = (680mA) cos(πt/0.0250 s).
a) What is the maximum emf induced in the coil?b) What is the maximum average flux through each turn of the coil?c) At t = 0.0175 s, what is the magnitude of the induced emf?
Vectors A and B have scalar product -3.00 and their vector product has magnitude 5.00. What is the angle between these two vectors
A cannon tilted up at a 26 degree angle fires a cannon ball at 71m/s from atop a 12m -high fortress wall
q1. one end of a cord is fixed and a small 0.500kg object is attached to the other end where it swings in a section of
A 67.5 kg person sits on a 3.77 kg chair. Calculate the pressure exerted on the floor by each leg of the chair, assuming the weight is evenly distributed
An object with a mass of 5.00 g is moving to the right at 14.0 cm/s when it is overtaken by an object with a mass of 28.0 g , determine the speed of each object after the collision
If a curve with a radius of 85 m is properly banked for a car travelling 68 km/h, what must be the coefficient of static friction for a car not to skid when travelling at 97 km/h.
In an engine, an almost ideal gas is compressed adiabatically tohalf its volume. In doing so,1380 J of work is done on the gas. What is the change in internal energy of the gas
In one cycle, a freezer uses 780J of electrical energy in order to remove 1730J of heat from its freezer compartment at 10.0 oF. What is the coefficient of performance of this freezer
A bicyclist is finishing his repair of a flat tire when a friend rides by at 3.8 m/s. How far has he traveled in this time
Assume a load resistor RLoad is placed in parallel with a 12 volt battery, calculate the internal resistance of the battery
A Carnot refrigerator is used in a kitchen in which thetemperature is kept at 304 K. What is the temperature inside the refrigerator
a hare and a tortoise compete in a race over a straight course 1.50 km long. the tortoise crawls at a speed of 0.210 ms
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