Two planets that are very similar in all aspects to Jupiter are
released from rest when they are 2.00×1012 m away from each other.
What is the speed of the planets as they collide? The mass of
Jupiter is 1.90×1027 kg and the radius is 7.00×107 m.
Two equally charged particles, held 3.0 × 10-3 m
apart, are released from rest. The initial acceleration of the
first particle is observed to be 8.5 m/s2 and that of
the second to be 12 m/s2. If the mass of the first
particle is 8.7 × 10-7 kg, what are
(a) the mass of the second particle and
(b) the magnitude of the charge of each
particle?
Two equally charged particles, held 4.2 x 10-3 m
apart, are released from rest. The initial acceleration of the
first particle is observed to be 7.4 m/s2 and that of
the second to be 11 m/s2. If the mass of the first
particle is 5.9 x 10-7 kg, what are (a)
the mass of the second particle and (b) the
magnitude of the charge (in C) of each particle?
A proton and an alpha particle are released from rest when they
are 0.210 nm apart. The alpha particle (a helium nucleus) has
essentially four times the mass and two times the charge of a
proton.
Find the maximum speed of proton.
Find the maximum speed of alpha particle.
Find the maximum acceleration of proton.
Find the maximum acceleration of alpha particle.
A proton and an alpha particle are released from rest when they
are 0.240 nm apart. The alpha particle (a helium nucleus) has
essentially four times the mass and two times the charge of a
proton.
Part A
Find the maximum speed of proton.
vmax =
m/s
Part B
Find the maximum speed of alpha particle.
vmax =
m/s
Part C
Find the maximum acceleration of proton.
amax =
m/s2
Part D
Find the maximum acceleration of alpha particle.
amax...
An electron is released from rest at a distance of 0.490 m from
a large insulating sheet of charge that has uniform surface charge
density 3.70×10−12 C/ m 2 .
1-How much work is done on the electron by the electric field of
the sheet as the electron moves from its initial position to a
point 7.00×10−2 m from the sheet? W=
Express your answer to three significant figures and
include the appropriate units.
2-What is the speed of the...
A block of mass m = 3.50 kg is released from rest from
point A and slides on the frictionless track shown in the figure
below. (Let ha = 5.20 m.)
(a) Determine the block's speed at points B and C
vB
= m/s
vC
= m/s
(b) Determine the net work done by the gravitational force on the
block as it moves from point A to point C.
J
A block of mass M = 4.0kg is released from
rest at point A as shown. Part AB of the track is
frictionless and is one quarter of a circle of radius
R=1.25m. The horizontal part of the track BC is
rough with co-efficient of kinetic friction . The block
comes to rest at C after moving a distance L =
6.25m. The block can be treated as a point particle.
[a] What is the speed (in
m/s) of M...
A flat cushion of mass m is released from rest at the
corner of the roof of a building, at height h. A wind
blowing along the side of the building exerts a constant horizontal
force of magnitude F on the cushion as it drops as shown
in the figure below. The air exerts no vertical force.
(A) Show that the path of the cushion is a straight line.
(Submit a file with a maximum size of 1 MB.)
(B)...
a 1.9 solid cylinder (radius =0.20 m, length = 0.60 m) is
released from rest at the top of the ramp and allowed to roll
without slipping. the ramp is 0.80 m high and 5.0 m long. when the
cylinder reaches the bottom of the ramp, what is its total kinetic
energy? what is it’s rotational kinetic energy?