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A uniform electric field has magnitude E = 270 N/C and is directed to the right. A particle with charge +4.3 nC moves along the straight line from a to b that is 0.25m in length
(a) What is the electric force that acts on the particle? magnitude ? µN direction ? to the left to the right
(b) What is the work done on the particle by the electric field? uJ
(c) What is the potential difference Va ? Vb between points a and b? ? V
Light wavelength is 510 nm is directed at a double slit, where the distance between the slits is 450 micrometers. What is the intensity of the central maximum
Transverse waves with a speed of 59.0 m/s are to be produced on a stretched string. A 4.95-m length of string with a total mass of 0.0600 kg is used. (a) What is the required tension in the string? N (b) Calculate the wave speed in the string if t..
A 11 kg box must be slid across the floor. what is the minimum force needed to start the box moving from rest
A girl is strapped to a board that is moving so that gamma along the length of the board is 2.0. What is the length of the girl's board in your reference frame when she arrives
Two automobiles, each of mass 900 kg, are moving at the same speed, 15 m/s, when they have an inelastic collision.(a) In what direction and at what velocity does the wreckage move if one car was driving north and one south? (b) In what direction a..
What is diameter of the circle
Mr. Physics drops a rock down a 250-meter deep well. Upon impact with the bottom of the well a short burst of sound is produced with a frequency of 250 Hz. How long after he drops the rock does he hear it hit bottom of the well.
Discuss displacement versus distance moved for an object and illustrate with examples. Define Inertia and explain its consequences on motion
find the magnitude of the initial acceleration. At what height above the surface of the earth does the balloon have a speed of 7.30 m/s.
One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. estimate the diameter of the pinhole
Fairgoers ride a Ferris wheel with a radius of 4.35m, the bottom of which is 1.75m from the ground. The wheel completes one revolution every 30s. A passenger drops his keys when he is three quarters of the way up and at the 10 o'clock position. Wh..
Calculate the wavelength of light in vacuum that has a frequency of 6.1 105 Hz. Calculate the energy of one photon of such light in vacuum
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