Physics, 04.07.2019 23:20 jacksoneaton
A)a tiny ball suspended at the end of a string has a charge q and is situated in a horizontal uniform electric field of magnitude 700 n ca-1 which points in the positive x-direction (horizontally). when the ball is in equilibrium, the string makes an angle of 20 o to the y-direction (vertically), such that it is displaced away from the vertical in the negative x-direction. the tension in the string has a magnitude of 6.3 x 10^-3 n. calculate the charge on the ball b)two electrons each with a momeentum of magnitude about 10a-23 kg m sa-1 are traveling along the x-axis, approximately 1 nm apart. they pass a measurement device which determines their momentum. to what precision can the momentum be determined without losing the ability to clearly recognize that two distinct particles have passed? (observations of two distinct particles requires that the wave functions representing the two electrons do not overlap appreciably)
Answers: 2
Physics, 21.06.2019 14:00, icantspeakengles
Acar tire contains 0.0380 m^3 3 of air at a pressure of 2.20 ×10^{5} 5 n/m^2 2 (about 32 psi). how much more internal energy does this gas have than the same volume has at normal atmospheric pressure, 1.01x10^5 5 pa?
Answers: 2
Physics, 21.06.2019 17:00, jordynsmith02
Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly
Answers: 1
Physics, 22.06.2019 09:30, morgan15776
Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z
Answers: 3
A)a tiny ball suspended at the end of a string has a charge q and is situated in a horizontal unifor...