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You hold a small plane mirror 0.50 m in front of your eyes, as shown in the figure. The mirror is 0.32 m (h) high, and in it you see the image of a tall building behind you. The building is93 m (D) behind you. Suppose the person's eyes are 1.6 m above the ground and that the small plane mirror can be moved up or down.
(a) Find the height of the bottom of the mirror such that the lowest point the person can see on the building is 22.9 m above the ground.
(b) With the mirror held at the height found in part (a), what is the highest point on the building the person can see?
A certain superconducting magnet in the form of a solenoid of length 0.80 m can generate a magnetic field of 14.0 T in its core, Find the number of turns in the solenoid.
Angular speed is the increased to 10 rad/2 over the next 4 seconds. Illustrate what is the average tangential speed at the edge of the grindstone during this time
A picture hangs on the wall suspended by two strings, as shown in the figure, with theta = 68°. The tension in string 1 is 1.4 N. What is the weight of the picture
A 94.00 water skier floating in a lake is pulled from rest to a speed of 10 in a distance of 24. What is the net force exerted on the skier, assuming his acceleration is constant.
What is the force acting on the electron (magnitude and direction) ? What is the electric field (magnitude and direction ) at the point where the electron is located
A rifle with a weight of 35 N fires a 5.0-g bullet with a speed of 250 m/s, If a 675-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
What is the pressure at the bottom of a swimming pool which is 12ft deep and contains fresh water.
At what angle should a curve of radius 155m be banked, so cars can travel safely at 26m/s without relying on friction.
Light has a wavelength of 550 nm in a vacuum. It then enters a medium of index of refraction 1.70, What is the frequency of this light in the vacuum, What is its frequency in the medium
Express the highest load in terms of theta_min and other quantities given in the problem introduction.
David is driving a steady 28.0m/s while he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 at the instant when David passes. How far does Tina drive before passing David.
Consider a damped oscillator with m=0.2 kg, b= 4 N-m^-1 sec and k= 80N/m. Suppose that this oscillator is driven by a force F=Fo cos wt, What is the mean power input
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