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A parallel-plate capacitor has 2.00 cm2 plates that are separated by 6.00 mm with air between them. If a 12.0 V battery is connected to this capacitor, how much energy does it store?
On a planet far, far away, an astronaut picks up a rock. The rock has a mass of 4.80 kg, and on this particular planet its weight is 40.8 N. If the astronaut exerts an upward force of 50.0 on the ro
Consider the H atom. Use eV for energies and show your calculation. a.) Calculate the energies of the first four levels of the atom.
If the inductor is a solenoid with 405 turns, what is the average magnetic flux through each turn when the current is 0.725 A?
A 2.0 kg box is raised from rest a distance of 5.0 m by a vertical force of 130 N. (a) Find the work done by the force. (b) Find the work done by gravity. (c) Find the final kinetic energy of the box.
a.) A nickel surface is exposed to light of wavelength 235 nm. The work function of Ni is 5.1 eV. What is the maximum speed of the photoelectrons emitted from the surface? b.) If the Ni is at a temp
If the slit separation were narrowed to 0.35 mm, what is the separation of the fringes?
A power station delivers 530 kW of power at 12,000 V to a factory through wires with total resistance 3.0 . How much less power is wasted if the electricity is delivered at 48,000 V rather than 12,0
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time.Find the linear veloc
A very large nonconducting plate lying in the xy-plane carries a charge per unit area of 8s. A second such plate located at z = 1.00 cm and oriented parallel to the xy-plane carries a charge per uni
In a cathode ray tube, electrons are accelerated from rest by a constant electric force of magnitude 6.2 x 10-17 N during the first 1.9 cm of the tube's length; then they move at essentially constan
A charge q1 = 17.0 µC moves with a speed of 3.00 multiplied by 103 m/s perpendicular to a uniform magnetic field. The charge experiences a magnetic force of 7.45 multiplied by 10-3 N.
A 529.0 g mass oscillates with an amplitude of 11.1 cm on a spring whose spring constant is 29.5 N/m. At t = 0.00 s the mass is 6.23 cm to the right of the equilibrium position and moving to the rig
A spherical conducting shell has a charge of -25 µC on its outer surface and a charged particle in its hollow. If the net charge on the shell is -21 µC, what is the charge (a) on the inn
A floating ice block is pushed through a displacement d = (11 m) i - (11 m) j along a straight embankment by rushing water, which exerts a force F = (169 N) i - (160 N) j on the block. How much work
Using this information, determine how long it would take for the Astronaunts traveling at 24,000 mph to perform an emergency burn and return to Earth traveling at 24,000 mph.
A cart of mass 3.2 kg is moving with a velocity of 15.2 m/s. It makes a head-on perfectly inelastic collision with a stationary cart B with mass 9.3 kg causing them to travel with a velocity 7.26 m/
Suddenly she needs to consult her physics book so you throw it to her with speed 8.6 m/s relative to your spacecraft. She is at rest relative to the spacecraft just before catching the 2.3 kg book.
A very massive object traveling at 100 m/s in the -z direction strikes a very light object that is initially at rest. If the collision is totally elastic, what is the velocity of the light object?
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 2.18 m away. If the first-order maxima are separated by 1.49 m on the screen, what is the distance
The surface charge density on an infinite charged plane is - 1.70 x 10^-6C/m^2 . A proton is shot straight away from the plane at 2.20 x 10^6m/s . How far does the proton travel before reaching it's
Airplanes and trains move through the earth's magnetic field at rather high speeds, so it is reasonable to wonder if our planet's magnetic field can have a substantial effect on them. We shall use a
An electron is accelerated through 2600 V from rest and then enters a region where there is a uniform 2.00 T magnetic field. What is maximum\magnitudes of the magnetic force acting on this electron?
A box of mass 50 kg lies on a bed of a truck traveling at 25 m/s. The coefficient of static friction between the bed and the box is 0.40. What is the maximum magnitude of deceleration that keeps tha
(a) Find the magnitude of the magnetic force on the electron. (b) Repeat your calculation for a proton having the same velocity.