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A long solenoid has n = 410 turns per meter and carries a current given by I = 28.0(1 ? e?1.60t ), where I is in amperes and t is in seconds. Inside the solenoid and coaxial with it is a coil that has a radius of R = 6.00 cm and consists of a total of N = 250 turns of fine wire (see figure below). What emf is induced in the coil by the changing current? (Use the following as necessary: t. Assume is in mV and t is in seconds.)
in the javelin throw at a track-and-field event the javelin is launched at a speed of 30.0 ms at an angle of 39.2 deg
In a physics lab experiment, a spring clamped to the table shoots a22 {\rm g} ball horizontally. When the spring is compressed 22 {\rm cm}, the ball travelshorizontally 5.2 {\rm m} and lands on the floor1.3 {\rm m} below the point at which it left..
an elevator is moving upward at a constant speed of 2.50 ms. a bolt in the elevator ceiling 3.00 m above the elevator
A family goes on vacation for one week, but forgets to tun off an electric fan that consumes electricity at the rate of 200 Watts. how much does it cost to run the fan during this time
an object has a volume of 3.29 m3 and a mass of 3000 kg. do you expect the object to sink or float in water? if the
A proton takes 95.0*10^-6 s to complete one orbit around a 14.5 m diameter cyclotron. What's the cyclotron's magnetic field
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
a mass 10 kg lies on a slope of 300 to the horizontal. there is no friction but the mass is attached to a 2 m long
If a electron after being accelerated by a potential difference of 100 V enters in a uniform magnetc field of 1T perpendicular. Calculate its radius of circular path described by it
The magnetic field of an electromagnetic wave in a vacuum is Bz=(2.5 microT)Sin(1.9*10^7 x-2(3.14)ft), where x is in m and t is in s. What is the wave's electric field amplitude
If astronauts could travel at v = 0.970c, we on Earth would say it takes (4.20/ 0.970) = 4.33years to reach Alpha Centauri, 4.20 light-years away. How much time passes on the astronauts' clocks
a pressure cooker cooks a lot faster than an ordinary pan by maintaining a higher pressure and temperature inside. the
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