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A small object carrying a charge of -6.00 nC is acted upon by a downward force of 19.0nN when placed at a certain point in an electric field.
Part A What are the magnitude and direction of the electric field at the point in question?
Part B upward or downward?
Part C What would be the magnitude and direction of the force acting on a proton placed at this same point in the electric field?
Part D upward or downward?
A sinusoidal ac voltage source in a circuit produces a maximum voltage of 12.6V and an rms current of 7.50mA. Find the voltage amplitude
I once observed a woman on an airplane at night with a camera. As we flew low over Washington DC she was impressed with the view of the city lights in the dark. She stood back in the aisle and tried to take the picture by the window using her flash. ..
Consider a 0.417-kg apple attached to a tree. Does the apple exert a gravitational force on the Earth? If so, what is the magnitude of this force
An electric field of 8.60 x 107 V/m is desired between two parallel plates, each of area 35.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate.
Calculate the radius of its ground-state orbit, Calculate the energy of the electron in the ground state of double ionized lithium
When a potential difference of 12 V is applied to a wire 5.6 m long and 0.28 mm in diameter the result is an electric current of 1.2 , What is the resistivity of the wire
A large sponge has forces of magnitude 12 N applied in oppositedirections to two opposite faces of area 42 cm^2. What is theshear modulus of the sponge
On your wedding day your lover gives you a gold ring of mass 3.98 g. 59 years later its mass is 3.73 g. On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 177 u.
A classroom demonstration is done with an Atwood machine. The masses are m1 = 1.0 kg and m2 = 1.14 kg. what is the acceleration of gravity at that place
A car traveling 56.1 km/h is 24.6 m from a barrier when the driver slams on the brakes. The car hits the barrier 1.72 s later. (a) What is the car's constant deceleration magnitude before impact? (b) How fast is the car traveling at impact?
plane polarized light of intensity I0 is passed through two polarizers, the first one at 45 degrees to the original plane of polarization, what intensity is transmitted
Old MacDonald had a farm, and on that farm he had a gate (see below). The gate is 3m wide and 1.8m high, with hinges attached to the top and bottom. The guy wire makes an angle of 300 with the top of the gate and is tightened by a turn buckle to a..
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