Physics, 26.11.2019 22:31 isaacdlt15
Acrate is lifted vertically 1.5 m and then held at rest. the crate has weight 100 n (i. e., it is supported by an upward force of 100 n). how much work was done in lifting the crate from the ground to its final position?
1. 150 j2. no work was done.3. none of these4. more than 150 j5. a bit less than 150 j
Answers: 3
Physics, 21.06.2019 13:40
The de broglie relation λ=h/p can be rewritten in terms of the wave number k as p=kℏ. recall that wave number is defined by k=2π/λ. using the fact that λ=v/f, find the wave numbers k1 and k2 corresponding to frequencies f1 and f2. express your answer as two expressions
Answers: 2
Physics, 21.06.2019 21:40
Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.
Answers: 1
Physics, 22.06.2019 01:40
In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.
Answers: 1
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Acrate is lifted vertically 1.5 m and then held at rest. the crate has weight 100 n (i. e., it is su...
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