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A ball is launched into the air at an angle of 60° above the horizontal with a speed of 21.0 m/s. (a) What are the x- and y- components of the velocity of the ball 3.20s after it leaves the cannon? (b) What are the x- and y- components of the displacement of the arrow during the 3.20s interval?
Inside the tube is a uniformelectric field of 4.50*10-4 N/C pointing in negativey-direction. How far does the particle travel before hitting the tube wall.
The potential difference between the plates of a capacitor is 247 V. Midway between the plates, a proton and an electron are released. find the initial speed of the proton
A ray of light incident upon a mirror makes an angle of 37degrees with the mirror. What is the angle between the incident rayand the reflected ray
The smallest angle of scattering of .32 nm x-rays from a crystal is35o (measured from the surface of the crystal). What is the frequency of these x-rays
An inventor claims to have devised a cyclic engine which exchanges heat with reservoirs at 300 K and 540 K, and which can produce 450 J of work per 1000 J of heat extracted from the hot reservoir. Is his claim feasible.
Two thin, isolated, concentric conducting spheres of radii 5.10 cm and 14.40 cm, have net charges of 23.00 nC, What is the electric potential at 3.315 cm from the center of the spheres
The two springs each have a spring constant of 11. They are stretched by 1 as a current passes through the wire. How big is the current.
what is the magnitude of the electric field at the point 7.00 - 9.00 5.30 m if the electric potential is given by v
if the caffeine concentration in a particular brand of soda is 1.99 mgoz drinking how many cans of soda would be
amtraks high speed train the acela utilizes tilt of the cars when negotiating curves. the angle of tilt is adjusted so
A child's toy consists of a piece of plastic attached to a spring. The spring is compressed against the floor a distance of 1.2 cm, and the toy is released. If the spring constant is 103 N/m, what is the magnitude of the spring force acting on the..
A certain automobile can decelerate at |a1| = 1.6 m/s2. Traveling at a constant v1 = 29 m/s, this car comes up behind a car traveling at a constant v2 = 4 m/s. What is the speed of the faster car relative to the slower car
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