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A 1100 kg car is moving at a speed of 40.0 m/s.
(a) What is kinetic energy of the car?
(b) How much work is required to bring the car to rest?
(c) Determine the stopping distance if the brakes supply a force of 4400 newtons.
In a ballistics test, a 25 g bullet traveling horizontally at 1200 m/s goes through a 35-cm-thick 350 kg stationary target and emerges with a speed of 1000 m/s. What is the target's speed just after the bullet emerges
While moving down the track at 10.0 m/s, you uniformly accelerate to 32.0 m/s in 10 s. Illustrate what is the average net force that you have applied to the car during the 10 s interval?
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 183 MeV, How many nuclei are in the beam
A luminous object is 3.60m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
A bob of mass m = 0.300kg is suspended from a fixed point with a massless string of length L = 21.0cm, What tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 24.0
A 6000 ohm resistor is joined in series with a 70 uF capacitor. what is the capacitive time constant of this combonation
Two objects of mass m and 9m undergo a completely inelastic collision in one dimension. what was the ratio of their speeds before the collision
You toss a ball up in the air with an initial velocity of 8 m/s (immediately after leaving your hand). Use gravity = -9.8 m/s2. What is its acceleration at its peak height
A wire of radius R carries a current with density: J =C(R-r). Find the total current carried by the wire
A potential energy function for a two-dimensional force is of the form U = 3.89x3 y - 5.96x. Calculate the force that acts at the point (1.28m,1.17m). Enter the x-component first and then the y-component.
An object of length 3 cm is inside a plastic block with index of refraction 1.40. If the object is viewed through the top surface of block at a non-zero angle from the normal, where is an object relative to its image.
A spring is oscillating with a frequency of 1.7Hz. 3.9 seconds after the spring is released it is -20cm from equilibrium. Find the amplitude of the spring
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