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A mechanic pushes a 2.4 103 kg car from rest to a speed of v, doing 5100 J of work in the process. During this time, the car moves 29.0 m. Neglecting friction between car and road, find each of the following. Determine the speed v and horizontal force exerted on the car.
q1. on the wheel of fortune game show a solid wheel of radius 6.7 m and mass 10 kg is given an initial counter
How fast should a meterstick travel to you in the direction parallel to the stick so that its length as measured by you is 70 cm.
An ideal spring has the spring constant k = 428 N/m. find the distance this spring must be stretched from its equilibrium position for 28 J of work to be done.
A proton is moving toward a wire that carries current in the direction shown. What is the direction of the force on the proton
The model airplane in Figure 5.6 is flying at a speed of 16.3 m/s on a horizontal circle of radius 19.6 m. The mass of the plane is 0.784 kg. The person holding the guideline pulls it in until the radius of the circle becomes 12.6 m. The plane speeds..
An electrically neutral thin, square metal slab, measuring 4.80cm on a side is placed in a uniform external field, What is the total charge on the negative side of the slab
A ball is fired at an angle of 45 degrees from ground level in the absence of air resistance. If the maximum range is 27m then what is its inital speed and what is the time of flight
35 kg girl is bouncing on a trampoline. Throughout a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 170 J from 470 J. How high does she rise during this interval? Avoid air resistance.
A Federation starship (7.5 multiplied by 106 kg) uses its tractor beam to pull a shuttlecraft (5.0 multiplied by 104 kg ) aboard from the distance of 12 km away.
A disk has radius R = 1.20 cm. Its surface charge density is 1.70 x 10-6 C/m2 from r = 0 to r = R/2 and 9.10 x 10-7 C/m2 from r = R/2 to r = R, What is the total charge (in C) on the disk
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. The electron has negligible initial speed and a final speed of 4.60 107 m/s. Find the voltage drop from cathode to anode.
The current is increasing at a rate of3.2A/s in an RL circuit withR=4.00ohmsandL=360mH. What is the total potential difference across the resistor and inductor at the moment when the current in the circuit is 3.0 A?
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