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Two resistors, one of 5 ohms and the other of 3 ohms, are connected in series to a 6V battery. (a) What is the resistance of the combination? (b) What is the potential difference across each resisto
A-6-nC point charge is located at the center of a conducting spherical shell. The shell has an inner radius of 2 m, an outer radius of 4 m, and a charge of +6 nC. (Let the radially outward direction
What are the direction and magnitude of your total displacement if you have traveled due west with a speed of 20.0 m/s for 125 s, then due south at 11.0 m/s for 66.0 s?
A passenger walks from one side of a ferry to the other as it approaches a dock. If the passenger's velocity is 2.00 m/s due north relative to the ferry, and 4.5 m/s at an angle of 33.0° west of
If she has no astigmatism and contact lenses are prescribed for her, what power lens is required to correct her vision?
A tuner first tunes the A string very precisely by matching it to a 440Hz tuning fork. She then strikes the A and E strings simultaneously and listens for beats between harmonics. What beat frequenc
One cubic centimeter of a cumulus contains 410 water drops, which have a typical radius of 10 µm. (a) How many cubic meters of water are in a cylindrical cumulus cloud of height 2.9 km and rad
A charge of -2.510 uC is located at (2.600m , 4.259m ), and a charge of 1.770 uC is located at (-2.666m , 0).line connecting these two charges
At t = 0, a stone is dropped from the top pf a cliff above a lake. Another stone is thrown downward 1.6s later from the same point with an initial speed of 32m/s. Both stones hit the water at the sa
Imagine you are driving at speed 60 mph through air filled with bugs at concentration 1 per cubic meter. The windshield is a flat panel of area 2 m^2 tilted so that it is at 60 degrees with the grou
Both the hare and the tortoise cross the finish line at the exact same instant. Assume both animals, when moving, move steadily at their respective speeds. For how long in time was the hare stationar
Assuming that the acceleration of the bullet is constant, find the force (including direction) exerted by the wood on the bullet.
A sports photographer has a 150 mm focal length lens on his camera.the photographer wants to photograph a sprinter running straight away from him at 5 m/s. what is the speed (in mm/s)of the sprinter
A point source of light is 65.3 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water. Water has an index of refraction o
An elevator (mass 4900 ) is to be designed so that the maximum acceleration is 6.30×10-2. What is the maximum force the motor should exert on the supporting cable?
A flower pot falls from the roof and passes in front of a window of height h as it falls to the ground to smash to pieces. If the flower pot takes a time T to pass from top to bottom in front of th
The 100- dash can be run by the best sprinters in 10.0. A 62- sprinter accelerates uniformly for the first 43 to reach top speed, which he maintains for the remaining 57 . What is the average horizo
One electron is at the origin of a coordinate system. A second electron, somewhere in the x-y plane, feels a force 2.4 X 10^-22 N + 3.6 X 10^-22 N. Where is the second electron located?
A research submarine has 20-cm-diameter window at 8.0 cm thick. The window is supposed to withstand a force of 1.0 x 106 N. what is the submarine's maximum safe depth in seawater? the pressure inside
An 97.6 g lead ball is dropped from rest from a height of 4.57 m. The collision between the ball and the ground is totally inelastic. Assuming all the ball's kinetic energy goes into heating the bal
The surface temperature of the filament of an incandescent lamp is 1210oC. If the electric power input is trebled, what will the temperature become?
Calculate the wavelength for maximum power from a blackbody radiator assuming its surface temperature to be 31.5C.
While traveling through Death Valley on a day when the temperature is 53.0°C, Bill Hiker finds that a certain voltage applied to a copper wire produces a current of 1.00 A
The surface charge density on an infinite charged plane is -2.30 * 10^-6 C/m^2. A proton is shot straight away from the plane at 2.30 * 10^6 m/s. How far does the proton travel before reaching it's
A circular arc has a uniform linear charge density of -7 nC/m. The value of the Coulomb constant is 8.98755 * 10^9 N*m^2/ C^2. What is the magnitude of the electric field at the center of the circle