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Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. The tree is 24 m tall and 85 m away. What is the size of the image of the tree on your retina? (Be careful about the sign of the image size.) Show your work.
An ac generator with a frequency of 30.0 Hz and an rms voltage of 12.0 V is connected to a 45.5-µF capacitor, What is the maximum current in this circuit
A spring-loaded gun, fired vertically, shoots a marble 6.4 m straight up in the air. What is the marble's range
Given two vectors,A= (4i + 1j) and B = (-1i + 4j) (3) What is the sum of these two vectors, What is the cross product of these two vectors
A 71kg student runs at 6.0m/s , grabs a hanging rope, and swings out over a lake. He releases the rope when his velocity is zero, What is the angle when he releases the rope
Two cars of equal mass collide on a horizontal frictionless surface. What is the speed of the composite body (AB) after the collision
q1. a sanding disk with rotational inertia 2.4 10-3 kgbullm2 is attached to an electric drill whose motor delivers a
A ray of light enters an equilateral prism made of material with n=1.45 at angle of incidence theta. The internally refracted ray is parallel to the base of the prism. What is the angle of refraction for the ray leaving the prism?
An x-ray tube is operated at 40600 V. find the minimum wavelength of the radiation emitted by this tube
Vector A is 25.0 m long and pointing 30 degree North of west and Vector B is expressed at 12.0i - 8.5j. compute the direction of the resultant vector
A 1.36 103-kg car traveling initially with a speed of 20.0 m/s in an easterly direction crashes into the rear end of a 9.00 103-kg truck moving in the same direction at 15.0 m/s. How much mechanical energy is lost in the collision
A stone is dropped from the roof of a building; 2.10s after that a second stone is thrown straight down with the initial speed of 18 m/s, and both stones hit the ground at the equal time. How long did it take for the first stone to hit the ground.
A particle moves along the x axis. It is initially at the position 0.210 m, moving with velocity 0.090 m/s and acceleration -0.340 m/s2. Find its velocity at the end of this time interval
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