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The tires of a car make 91 revolutions as the car reduces its speed uniformly from 86.0 km/h to 56.0 km/h. The tires have a diameter of 0.88 m angular acceleration: α = -1.5 rad/s^2
Part A: If the car continues to decelerate at this rate, how much more time is required for it to stop?
Express your answer to two significant figures and include the appropriate units.
Part B: If the car continues to decelerate at this rate, how far does it go? Find the total distance.
Express your answer to three significant figures and include the appropriate units.
A 0.22-kg coffee mug is made from a material that has a specific heat capacity of 900 J/(kg · C°) and contains 0.23 kg of water. determine the minimum power rating of this heater
in an echolocation lab a student measures the time from the first click of the fingers to the first echo to be 0.0062.
A skier of mass M started from rest at the top of a frictionless round hill of radius R. as they slide down the side, find at what angle will they leave the sphere
On a highly polished, essentially frictionless lunch counter, How much mechanical energy dissipates in the collision
The base station antenna height is 50 m, the lowest mobile antenna height is 1.5 m, the frequency is 880 MHz, the standard deviation of the shadowing is 12 dB, and the maximum acceptable path loss is 140 dB. Calculate the maximum cell radius
A merry-go-round rotates at 5 rpm and is shaped like a disc with a radius of 3 m and a mass of 100kg. what will be the new rotational speed
two identical conducting spheres each having a radius of 0.500 cm are connected by a light 2.00-m-long conducting wire.
A sphere of radius 4.12 cm and uniform surface charge density+11.6μC/m2 exerts an electrostatic force ofmagnitude 4.83×10−2N on a point charge+1.25μC. Find the separation between the point chargeand the center of the sphere.
A wildlife photographer uses a camera with a convex lens with focal length of +5.0 cm to take a picture of a 45m tall redwood tree.
On a unit circle with a diameter of 2 m (r=1 m) there are 2 positive charges of 1 C each, one at the center of both sides of the circle. What is the net force at the top point of the unit circle
To stretch a certain spring by 3.00 from its equilibrium position requires 9.50 of work. What was the maximum force required to stretch it
A simple pendulum has mass 1.28 kg and length 0.600 m. What is the period of the pendulum near the surface of Earth
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