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A conducting sphere of radius R1 carries a charge Q. Another conducting sphere has a radius of R2= 2R1, but carries the same charge. The spheres are far apart. The ratio E2/E1 of the electric field
Calculate the volume charge density of the atmosphere, assuming it to be uniform between 210 and 360 m. (Hint: You may neglect the curvature of Earth. Why?) Units should be in C/m3
What is the acceleration of the car in m/s^2? How many meters does the car travel before stopping under these conditions in m?
An Other Frame moves with a speed of 0.6 relative to the Home Frame. An object at rest in the Home Frame has a length of 30 ns. What is the object's length in the Other Frame?
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3120-kg space tug and a 5910-kg asteroid. They pull on the asteroid with a force of 308 N.
The woman pushes on the man with a force of 54 N due east. Determine the acceleration (magnitude and direction) of (a) the man and (b) the woman.
Suppose the weight of the sky diver is 948 N and the drag force has a magnitude of 1045 N. The mass of the sky diver is 96.7 kg. Take upward to be the positive direction. What is his acceleration, inc
The ball remains in contact with the cushion for a time of 3.10 × 10-3 s. What is the average net force (magnitude and direction) exerted on the ball by the cushion?
A rocket of mass 4.44 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 54.5° above the horizontal and has a magnitude of 9.71 × 106 N. Find the (a) m
The electrodes are attached by metal wires to the terminals of a 13 V battery. After a long time, the capacitor is disconnected from the battery but is not discharged. Part A: What is the charge on
A ball is launched at 100 m/ s at 75 degrees from a 40m tall building. Find the Max Height, how far the ball lands from the launch site, the velocity in the x & y directions, in the y-direction
A 70 block of iron is removed from an 800furnace and immediately dropped into 200 of 20 water. What fraction of the water boils away?
Assuming the earth is a sphere with a radius of 6.38 x 106 m, determine the speed and centripetal acceleration of a person situated (a) at the equator and (b) at a latitude of 75.0 ° north
Find (a) the smallest and (b) the largest speed at which cars can move on this track without relying on friction.
Standing waves are formed by the superposition of the wave Y(x,t) = 5sin(20pi(t)+35x) and its reflection. write down the expression for the standing waves.
A charge of -1.4 µC is fixed in place. From a horizontal distance of 0.0225 m, a particle of mass 7.75 10-3 kg and charge -1.3 µC is fired with an initial speed of 75.0 m/s directly towa
Approximately what viewing distance from a wing puts you at the limit of resolving the different colored patches according to Rayleigh's criterion? Use 500 nm as the wavelength of light and 4.0 mm a
Piano tuners tune pianos by listening to the beats between the harmonics of two different strings. When properly tuned, the note A should have a frequency of 440 Hz and the note E should be at 659
How fast is each particle moving when the separation between them is one-half its initial value?
This situation is like that of a car on a curve that is banked at an angle of 23°. If she tries to make the turn without slowing down, what is the minimum distance from the seawall that she can
(a) Determine the number of modes in the laser cavity that are within the laser transition linewidth. (b) A power meter is then placed at the cavity output coupler for 1 minute. The reading is const
At one instant the outer wall moves at a speed of 3.39 m/s, and an 75.4-kg person feels a 566-N force pressing against his back. What is the radius of a chamber?
One of the angles is so large that it is never used in target shooting. Horizontal distance is 91.4M. Find the larger angle and the smaller angle.
Describe the pattern observed from diffraction around a straight edge, for the straight edge/opaque disks. Why do you think this pattern is diffraction and not interference?