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Two displacement vectors A and B, with A+B being 57.0 m, 25.0A?° north of east, and A-B being 33.0 m, 35.0A?° west of south. Find the components of A and B.
A variable-speed drill, initially turning at 300 rpm, speeds up to 1300 rpm in a time interval of 0.3 s
A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 401 N and have a center of gravity that is 1.39 m above the floor. find the location of the center of gravity for the entire body
A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. How tall is the final image of the object
An alpha particle (q=2e and m=4mp) is projected directly at a gold nucleus (q = 79e) which can be assumed to be fixed in place. Assume that the alpha particle starts from a point which is very far from the gold and that it has an initial speed of 4. ..
Two loudspeakers on a concert stage are vibrating in phase. A listener is 47.3 m from the left speaker and 32.1 m from the right one. What is the lowest frequency that can be heard loudly
Determine the resistance of a 75-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units.
Before mounting the diffraction grating, look through the opening that you made for your grating. Record what you see across the back of your spectroscope. After mounting the diffraction grating, look through your spectroscope and record what you ..
70 grams of water at 85°C are mixed with an equal amount of water at 15°C in a completely insulated container. How much heat is gained by the cold water
The magnetic force exerted on a 3.0-m segment of straight wire is 1.9 N. What is the angle between the wire and the magnetic field
you perform a double-slit experiment in order to measure the wavelength of the new laser that you received for your
From the top of a cliff 80 meters high, a ball of mass 0.4 kilogram is launched horizontally with a velocity of 30 meters per second at time t=0. The potential energy of the ball is zero at the bottom of the cliff. Use g=0 meters per second square..
A 12 Volt battery remains connected to a parallel plate capacitor with a plate area of 0.294 m2 and a plate separation of 5.24 millimeter. Determine how much energy is stored in the capacitor
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