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A 930 kg electric car uses a 270 V battery pack. As the car accelerates from rest, 360 C flows from the battery.
What's the maximum speed the car can attain during this time? (The actual speed will be less, due to friction and other losses.)
What is magnitude of induced emf between the ends of beam
Suppose a pion is moving at a speed of 0.986c, and an observer who is stationary in a laboratory measures the pion's lifetime to be2.7 × 10-8 s. What is the lifetime according to a hypothetical person who is riding along with the pion
A cat drops from a shelf 3.7ft above the floor and lands on all four feet. His legs bring him to a stop in a distance of 12 cm . Calculate his speed when he first touches the floor (ignore air resistance). Calculate how long it takes him to stop.
amateur radio operators often refer to their radio waves by wavelength. what are the approximate frequencies of the
Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 4.7t0.8 - 2.9t + 19, with t ? 0, m in grams, and t in seconds. (a) At what time is the water mass greatest, and (b) what is that greates..
An astronomical telescope for hobbyists has an angular magnification of -150. The eyepiece has a focal length of 4.90 mm, About how long is the telescope
A 50 g ball isreleased from rest 1.0 m above the bottom of the track shown in the figure . It rolls down a straight 30 degree, segment, then back up a parabolic segment whose shape is given byy=1/4x2, where x and y are in meters.
q1. a box of mass 32 kg is at rest on a horizontal frictionless surface. a constant horizontal force then acts on the
A taut rope has a mass of 0.170 kg and a length of 3.55 m. What power must be supplied to the rope to generate sinusoidal waves having an amplitude of 0.110 m and a wavelength of 0.490 m, traveling with a speed of 31.0 m/s?
A body travels a distance of 3km towards east and 4 km towards north and finally 9 km towards east. what is the total distance travelled and displacement of body.
A 4.5kg ball with a velocity of 4.0m/s in the+x-direction collides head-on elastically with a stationary 1.8kg ball. What is the speed of the first ball after the collision
A pendulum is made with a 4.00 kg mass suspended at the end of a thin rod, What is the length of the thin rod
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