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You produce an image of the Sun on a screen, using a thin lens whose focal length is 23.0 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96 x 108 m and its mean distance from Earth is 1.50 x 1011 m.)
a 2.00g bullet strikes a 2.00 kg block hanging from a long cord. the bullet imbeds itself in the block causing the
Three equal point charges, each with a charge of 1.80?C , are placed at the corners of an equilateral triangle whose sides have a length of 0.550m, What is the potential energy of the system
When the tips of the rotating propeller of an airplane have a linear speed greater than the speed of sound, the propeller makes a lot of noise, which is undesirable. If the length of the propeller is 2.354 m
a space station in the form of a large wheel 77.2 m in diameter rotates to provide an artifical gravity of 5.1 ms2 for
A charged particle initially moving south in a vertically downward magnetic field is deflected toward the east. What is the sign of the charge on the particle
A horizontal aluminum rod 4cm in diameter projects 5.2 cm froma wall. A 1700kg object is suspended from the end of the rod. Find the vertical deflection on the end of the rod
A person slowly lowers a 3.6 Kg crab trap over the side of a dock, What torque does the trap exert about the person's shoulder
Three single-phase step-up transformers rated at 10MVA, 4.6kV/13.8kV are connected in Wye-Delta configuration. The three transformers are used to feed a 20MVA load at 0.9 p.f. With an efficiency of 96%. Find the secondary line voltage.
Create a graph corresponding to the stone vertical velocity
Consider a simple pendulum of length l and mass m placed in a rail-road cart that has constant acceleration a in the positive x-direction.
A grinding wheel is spinning at a rate of 20.0 revolutions per second. What was the angular acceleration of the grinding wheel as it came to rest
After the collision, the blue puck has a velocity of 2i – 2j m/s. Illustrate what is the velocity of the gold puck after the collision?
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