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A person on earth notices a rocket approaching from the right at a speed of 0.74c and another rocket approaching from the left at 0.52c. What is the relative speed between the two rockets, as measured by a passenger on one of them?
A concave shaving mirror has a focal length of 95 cm. find the image position of a cologne bottle placed in front of the mirror at a distance of 165cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted o..
A wheel that is rotating at 45 Rad/s is give an angular acceleration of 3 Rad/s (sqrd). Use gravity: 10 m/s, how long is the angular velocity of the wheel
A uniform plank of length 5.8 m and weight 217N rests horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 460 N walk on the overhanging part of the plank before it just beg..
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
An electron of mass 9.11×10?31 leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, Find the Time to reach the grid
You and the friend each drive 47.0 km. You travel at 87.0 km/h; your friend travels at 98 km/h. How long will your friend wait for you at the end of trip.
A particle moves in a one-dimensional potential given by V(x) = Vo(e^-ax + bx),(V(x) is potential not velocity), Sketch the potential and the force as functions of x
Two spheres of mass m and a third sphere of mass M form an equilateral triangle, and a fourth sphere of mass mB is at center of the triangle.
A 0.138-A current is charging a capacitor that has square plates 5.20 cm on each side. The plate separation is 4.00 mm. Find the displacement current between the plates
A Federation starship ( 2.10×106kgkg ) uses its tractor beam to pull a shuttlecraft ( 2.10×104kgkg ) aboard from a distance of 15.0kmkm away. The tractor beam exerts a constant force of 4.0×104N4.0 \times 10^{4}\;{\rm N} on the shuttlecraft. Both spa..
What is the minimum coefficient of friction that will prevent sliding. What should be the highest speed of the car so it can round the curve safely.
A 200 g block hangs from a spring with spring constant 10 N/m. At t=0 s the block is 23 cm below the equilibrium point and moving upward with the speed of 125 cm/s. What are block's oscillation frequency? What is the block's distance from equilibri..
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