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A copper wire is 8.00 m long, and has a cross-sectional area of1.0X10-4 m2. This wire forms a one turn loopin the shape of a square and is then connected to a battery thatapplies a potential difference of 0.100 V. The loop is placed in auniform magnetic field of magnitude 0.400 T, so that the plane ofthe coil makes an angle 25 degrees with the direction of themagnetic field
(a) What is the torque acting on the loop?
the speed of light in a certain material is measured to be 2.2*10^8 m/s. what is the index of refraction of this material
In a X-ray tube, electrons are accelerated through a potential of 10, 000V. How much energy does the accelerated electron have
A Carnot engine with a hot-reservoir temperature of 360 has the same thermal efficiency. What is the cold-reservoir temperature in C?
In a 30.0 s interval, 470 hailstonesstrike a glass window of area 0.600 m2 at an angle of45.0° to the window surface. Each hailstone has a mass of 5.00g and a speed of 8.30 m/s. If thecollisions are elastic, find the pressure on the window.
A gasoline engine takes in1.61×104 {\rm J} of heat and delivers3900 {\rm J} of work per cycle. The heat isobtained by burning gasoline with a heat of combustion of4.60×104 {\rm J}/{\rm g}.
A concave makeup mirror is designed so that a person 22 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror
A mass-spring system oscillates with an amplitude of 3.40 cm. If the spring constant is 248 N/m and the mass is 421 g, Determine the maximum speed of the object
During a particular car crash, it takes just 0.18 sec for the car to come to a complete stop from 50 km/hour. At what rate is the car accelerating during the crash
The system is balanced by a support that is 0.300m from the left end of the plank. How far to the right of the support is the plank's center of gravity.
The force on a long wire is a maximum of 6.20 10-2 N when placed between the pole faces of a magnet. What type of magnetic pole is the top pole face
An object is initially placed on the optical axis 21.2 cm to the left of a convex lens that has a focal length of 12.1 cm. what is the new image distance
A spring is compressed by 0.0527 m and is used to launch an object horizontally with a speed of 2.19 m/s. at what angular frequency (in rad/s) would it oscillate
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