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Two point charges are on the y axis. A 3.80-µC charge is placed at y = 1.25 centimeter, and a -2.18 µC charge is placed at y = -1.80 centimeter.
(a) Evaluate the total electric potential at the origin.
(b) Determine the total electric potential at the point whose coordinates are (1.50 cm, 0).
A coil has a magnetic dipole moment of 2.2 A*m2 into thepaper. It is in a large external magnetic field of 6.6 Tdirected out of the paper. Find the torque the field exertson the coil.
A high-speed flywheel in a motor is spinning at 450 when a power failure suddenly occurs. The flywheel has mass 38.0 and diameter 78 . The power is off for 25 and during this time the flywheel slows due to friction in its axle bearings.
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 3.00 m/s, and her takeoff point is 1.20 m above the pool. How long are her feet in the air
Given: G = 6.67259 × 10^?11 Nm2/kg2 Voyagers 1 and 2 surveyed the surface of Jupiter's moon Io, Estimate the speed with which the liquid sulfur left the volcano
A bullet of mass mB=1.09?10?2kg is moving with a speed of 101.m/s when it collides with a rod of mass mR=6.51kg and length L=1.04m, What is the change in kinetic energy in the collision
A thin uniform rod (mass = 0.95 kg) swings about an axis that passes through one end of the rod and is perpendicular to the plane of the swing. What is the maximum kinetic energy of the rod as it swings
n = 3.78 mol of Hydrogen gas is initially at T = 366 K temperature and pi = 2.88×105 Pa pressure. How much work did the external force perform
a light bulb is wired in series with a 132-o resistor and they are connected across a 120-v source. the power delivered
A guitar string of length L =1 is pulled upward at the middle so that it reaches height h. What is the subsequent motion of the string if it is suddenly released
Consider an infant who weighs 100 newtons. During each year she grows so that each dimension of her body increases by 5%. How much would she weigh then.
The buoyant force is described by Archimedes principle as: an object, when located in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Explain how will you measure the volume of the solid objects in this ex..
A pitcher pitches a baseball of mass 0.20 kilogram. The baseball arrives at home plate with a speed of 40 m/s and is batted directly back to the pitcher with a return speed of 50 m/s. Obtain the magnitude of the change of momentum of the ball
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