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A) Find the focal length of a mirror that forms an image 2.30m behind a mirror of an object that is 6.50m in front of the mirror.
B) a 2.1 m tall object is placed 8.5m from a truck mirror. If an image is formed -1.25 m from the mirror, what is the height if the image?
The blades in a blender rotate at a rate of 7100 rpm. When the motor is turned off during operation, Find the angular acceleration as the blades slow down
A certain current on passing through a galvanometer produces a deflection of 100 divisions. The galvanometer resistance would be
The potential difference between the surface of a 2.2cm -diameter power line and a point 1.3m distant is 3.7kV. What is the line charge density on the power line
A ball is launched straight up with a speed of 18.32 miles per hour. What is the maximum height reached in meters
A hot-air balloon is rising straight up with a speed of 1.47 m/s. Aballast bag is released from rest relative to the balloon when itis 9.87 m above the ground. How much time elapses before theballast bag hits the ground?
Light travels from air (n=1.00) into water (n=1.33). If the angle of refraction is 30 degrees, what is the angle of incidence?
A magnetic field of strength 0.27 T is directed perpendicular to a plane circular loop of wire of radius25 cm. Find the magnetic flux through the area enclosed by this loop.
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at a speed of 60.0m/s, Find the vertical component of the average force on the ball
A small ball with mass m is attached to a string, which goes over a pulley and makes a small angle swing. Derive the period of this simple pendulum
Suppose that the pressure is one atmosphere and decide the heat in joules required to produce 3.77 kg of water vapour at 100.0°C, starting with (a)3.77 kg of water at 100.0°C and (b)3.77 kg of liquid water at 0.0°C.
A typical lightbulb in your house is rated 137 W, which means that the lightbulb dissipates 137 W when connected to a DC voltage of 110V. what is the dissipated power
An electric motor can accelerate a Ferris wheel of moment ofinertia 10100 kg · m^2 from rest to 12.4 rev/min in 13.3 s. Determine the torque generated by the motor to bring the wheelto 12.4 rev/min
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