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A nearsighted person has a far point located only 521 cm from the eye. Assuming the eyeglasses are worn 2 cm in front of the eye, find the focal length needed for the diverging lenses of the glasses so the person can see distant objects.
A spaceship moving away from the Earth at a velocity v1 = .75c with respect tot he Earth, What is the velocity of the rocket with respect to the Earth
A 7.0mW laser beam has a circular cross section with diameter 0.80mm, What is the maximum radiation pressure that this laser can exert on a mirrored surface
A 920-kg spacecraft passes you traveling forward at 1/2 the speed of light. What is its relativistic momentum
A baseball pitcher throws a baseball with an initial velocity of 133 feet per second at an angle of 20° to the hoizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that describe the motion of the ball as a..
A meter stick is found to balance at the 49.7cm mark when placed on the fulcrum. When a 41g mass is attached at the 23cm mark, what is the mass of the meter stick
An object 2.00 mm tall is placed 20.0 cm to the left of a double convex lens with a focal length of 10.0 cm. A second lens, double concave, with a focal length of 10.0 cm is 5.00 cm to the right of the first lens. Draw image to solve.
A box is at the lower end of a very slippery ramp of length l that makes a nonzero angle θ with the horizontal. How fast must the box be moving
Find the minimum initial speed of a projectile in order for it to reach a height of 2135 km above the surface of the eartH
Velocity graph of a 2.kg objectas it moves along the x-axis. What is the net force actingon this object at the given times? it gives me a vilocity time graph and asked me to findthe net force at t=1s,4s,7s
Show that the flow represented by f ¼ 10r cos y þ 40 ln r m2=s is an incompressible flow.Find the stream function c.
A small piece of dust of mass m = 2.5 mu or micro g (micrograms) travels through an electric air cleaner in which the electric field is 486 N/C. What is the charge on the dust particle
a thin lens of focal length 30.0 cm and is used to form an image that is twice the size of the object. Find the object position
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