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An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.78 x 105 m/s to a final velocity of 2.34 x 106 m/s while traveling a distance of 0.0685 m. The electron's acceleration is due to two electric forces parallel to the x axis: = 9.36 x 10-17 N, and , which points in the -x direction. Find the magnitudes of
(a) the net force acting on the electron and
(b) the electric force.
A bowling ball (mass= 7.2 kg, radius= 0.14m) and a billiard ball (mass= .44 kg, radius= .028m) may each be treated as uniform spheres. find the magnitude of the maximum gravitational force
What is the shortest height a plane mirror must be so that a person who is 1.6 meters tall is able to see his or her whole body? plan a ray diagram to support your answer.
A projectile of mass 0.950 kg is shot straight up with an initial speed of 24.0 m/s, If the projectile rises to a maximum height of only 19.7 m, determine the magnitude of the average force due to air resistance
If 100 gpm are flowing in the piping system below, and Gauge 1 reads 120psi and Gauge2 reads 94psi, how much pressure in psi is lost to friction
A race car can be slowed with a steady acceleration of -11 m/s2 if the car is going 55m/s how many meters would it travel before it stops?
A copper wire has radius r = 0.424 cm, is 6.00 m long, has resistivity ? = 1.72·10-8 ? m, What is the electric field, E, in the wire
For no apparent reason, a poodle is running at a constant speed of 4.40 {rm m/s} in a circle with radius 3.0 {rm m}. Let vec v_1 be the velocity vector at time t_1, and let vec v_2 be the velocity vector at time t_2.
A spring with spring constant 11N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. What is its the mass of the ball
The emissivity of her skin is 0.750 and its surface area is 1.30 m2. How much time would it take for her to emit a net radiant energy from her body that is equal to energy contained in this dessert.
An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. Determine the mass of steam that has entered
A ceiling fan with 80-diameter blades is turning at 68. Suppose the fan coasts to a stop 27 after being turned off. What is the speed of the tip of the blade 10 after the fan is turned off.
A 22.29 g ball of clay traveling east at 3.83 m/s collides with a 44.01 g ball of clay traveling north at 4.28 m/s. What is the speed of the resulting 66.3 g ball of clay
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