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Calculate the average force a bumper would have to exert to bring a 1200-kg car to rest in 15 cm when the car had an initial speed of 2.0 m/s (about 4.5 mph).
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Question: A proton (with a rest mass m=1.6 x 10 27 kg) has a total energy that is 4.00 times its rest energy. What is the magnitude of the momentum p of the proton? Please explan in detail each step and what equations ar ...
Problem: A block oscillating on a spring has a maximum speed of 20cm/s. What will be the block's maximum speed if its totalenergy is doubled? Explain. (in its simplest form of physics,please) The response must be typed, ...
Question: The radius of the earth's orbit around the sun (assumed to be circular) is 1.5*10^8 km , and the earth travels around this orbit in 365 days. a) What is the magnitude of the orbital velocity of the earth in m/s ...
Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 µC. (a) What is the potential difference between the plates? (b) If the charge is kept constant, what will be the po ...
Question: Suppose the emf generated by a coil rotating in a magnetic field is zero at t=0, and increases to its first peak at t0=0.11ms. A) What is the angular velocity of the coil in rad/s? B) At what time (relative to ...
Question: An object is placed 30 cm to the left of a converging lens that has a focal length of 15cm. Describe what the resulting image look like (i.e. image distance, magnification, upright or inverted images, real or v ...
Question: The position of a mass oscillating on a spring is given byx = (6.8 cm) cos[2t/(0.91 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x =-6.8cm? The response must be type ...
Question: A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.3 s later. If the speed of sound is 340 m/s, how high is the cliff? The response must be typed, single spaced, must be in tim ...
Question: A sump pump is draining a flooded basement at the rate of 0.650 L/s, with an output pressure of 2.00 ? 10 5 N/m 2 . Neglect frictional losses in both parts of this problem. (a) The water enters a hose with a 3 ...
Question: The potential energy U of an object of mass m that is separated by a distance R from an object of mass M is given by U = -GMm/R A. What is the kinetic energy K of the satellite? Express your answer in terms of ...
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