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The Hubble Space Telescope has a mirror diameter of 2.4m. Assume the telescope is used to photograph stars near the center of our galaxy, 30,000 light years away, using red light with a wavelength of 650 nm.
What's the distance in km among two stars that are marginally resolved?
A particular engine has a power output of 6.00 kW and an efficiency of 29.0 percent. Assume the engine expels 8000 Joule of energy in each cycle. Calculate the time required to complete each cycle
You toss a ball straight up in the air. Immediately after you let go of it, what forces are acting on the ball
A pair of narrow slits are .075 mm apart and are located 1.5 m from the screen. Find the wavelength of the beam
A wheel starts from rest and has an angular acceleration of 4.00rad/s^2. It turns during 10.0 complete revolutions. What is its angular velocity after it has completed 10.0 revolutions?
A 3.8 kg bucket of water is raised from a well by a rope. The acceleration of gravity is 9.8 m/s2. find the force exerted by the rope on the bucket
A 2.0 kg canister is moving in the positive x direction with an initial velocity of 4.0 m/s, How fast will the canstier be moving as a result of this force
two point charges q and -3q are located a distance d apart with -3q to the right of q. find the location of all the
questionwhile the movie back to the future ii came out everyone wanted a hover-board. you decide to use your
q1. a 4.20 kg model rocket is launched expelling 57.0 g of burned fuel from its exhaust at a speed of 675 ms. what is
A piece of aluminum (specific heat 910 J/kg degrees C) of mass 200 g at 80.0 degree C is dropped into a Styrofoam cup filled with 100 mL of water at 20 degree C
A 14.4 cm long tendon was found to stretch 3.79 mm by a force of 11.1 N. Calculate the Young's modulus of this tendon
0.550-kg glider, attached to the end of an ideal spring with force constant k = 440 N/m, undergoes SHM with an amplitude 0.040 m. Compute the maximum speed of the glider
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