Physics, 05.06.2021 20:50, MoparorNocar061401
A pendulum is raised to a certain height and released from point A, as shown
in the image below. At its release, the pendulum is also given an initial
velocity of 14 m/s. Assuming that the effects of friction and air resistance
can be ignored, what will be the maximum height that the pendulum can
reach – that is, what is the height at point B? (Recall that g = 9.8 m/s2)
B
.
35 m
A. 25 m
B. 45 m
C. 20 m
D. 30 m
Answers: 2
Physics, 21.06.2019 20:20, jacesmokesloud7254
Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?
Answers: 2
Physics, 23.06.2019 03:20, marshaehayes9444
Neutrons are placed in a magnetic field with magnitude 2.30 t. part a part complete what is the energy difference between the states with the nuclear spin angular momentum components parallel and antiparallel to the field? δe δ e = 2.77×10−7 ev previous answers correct part b part complete which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? parallel antiparallel previous answers correct part c part complete how do your results compare with the energy states for a proton in the same field (δe=4.05×10−7ev)? how do your results compare with the energy states for a proton in the same field this result is smaller than but comparable to that found in the example for protons. this result is greater than but comparable to that found in the example for protons. previous answers correct part d the neutrons can make transitions from one of these states to the other by emitting or absorbing a photon with energy equal to the energy difference of the two states. find the frequency of such a photon. f f = mhz previous answersrequest answer incorrect; try again; 5 attempts remaining
Answers: 2
A pendulum is raised to a certain height and released from point A, as shown
in the image below. At...
Mathematics, 09.10.2019 04:00