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An electric scooter has a battery capable of supplying 150 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly terrain, if the rider and scooter have a combined weight of 895 N?
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
Laser light of wavelength 400 nm illuminates an array of very narrow slits, producing an interference pattern on a screen 70 cm from the slits. compute the separation between the slits
Along a straight road through town, there are three speed-limit signs. They occur in the following order: 54 , 35 , and 18 mi/h, with the 35 -mi/h sign located midway between the other two.
A 83.0-?F capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 2.60 V and is constant. at what frequency will the fuse burn out
A Carnot engine extracts 550 J of heat from a high-temperature reservoir during each cycle, compute the efficiency of the engine
A farsighted man uses eyeglasses with a refractive power of 1.90 diopters. Wearing the glasses 0.03 m from his eyes, What is the correct contact lens prescription, in diopters
For the 4-particle system find the moment of inertia about the y-axis, that passes through the two masses on the left-hand side of the system.
How fast is the mass moving at the top of its new path (directly above the peg)?
You measure distances from the center of a diffraction pattern (y) to a series of dark fringes on a screen, What is the wavelength of the laser you used to collect the data
A railroad car of mass m moving at v collides completely inelastically with a stationary railroad car of mass 2 m and couples to it
In a head-on collision, a car stops in 0.29 {s} from the speed of 28 {m/s}. The driver has a mass of 78 {kg}, and is, fortunately, tightly strapped into his seat. what force is applied to driver during that fraction of a second.
A dolphin leaps out of the water at the angle of 46° above the horizontal. The horizontal component of the dolphin's velocity is 9.40 m/s. Find out the magnitude of the vertical component of velocity.
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