Question

An 8.75 kg point mass and a 15.0 kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 14.0 cm from the 8.75 kg mass along the line connecting the two fixed masses. a)

Find the magnitude of the acceleration of the particle.

Answer #1

Particle 1 with a mass of 15.0 kg is fixed at the origin.
Particle 2 is fixed on the +x axis 20.0 cm away from the origin.
Particle 3 with a mass of 25.0 kg sits between particles 1 and 2,
5.00 cm away from the origin. Point P is midway between particles 1
and 2. What is the mass of particle 2 if the magnitude of the net
gravitational field at point P is zero?

Two point charges Q1 = 30.0 nC and Q2 =
-40 nC are held fixed along the x-axis. Q1 is at x = 0
and Q2 is at x = 72.0 cm. A third particle, of mass m =
2.2 x 10-6 kg, has charge Q3 = 42µC. If
Q3 is released from x = 28 cm, what is its initial
acceleration?

Two equally charged particles, held 4.0 × 10-3 m
apart, are released from rest. The initial acceleration of the
first particle is observed to be 7.3 m/s2 and that of
the second to be 8.4 m/s2. If the mass of the first
particle is 8.5 × 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 4.0 × 10-3 m
apart, are released from rest. The initial acceleration of the
first particle is observed to be 5.5 m/s2 and that of
the second to be 9.0 m/s2. If the mass of the first
particle is 7.8 × 10-7 kg, what are (a)
the mass of the second particle and (b) the
magnitude of the charge of each particle?

Two point charges q1 and q2 are held 4.00
cmapart. An electron released at a point that is equidistant from
both charges (see the figure (Figure 1)) undergoes an initial
acceleration of 8.00×1018 m/s2 directly upward in the
figure, parallel to the line connecting q1 and
q2. Find the magnitude and sign of q1 and
q2.

Two equally charged particles are
held 4.1 ✕ 10−3 m apart and
then released from rest. The initial acceleration of the first
particle is observed to be 5.5 m/s2 and
that of the second to be 9.4 m/s2. The
mass of the first particle
is 6.3 ✕ 10−7 kg.
(a) What is the mass of the second
particle?
kg
(b) What is the magnitude of the charge of each
particle?
C

One particle has a mass of 2.11 x 10-3 kg and a
charge of +8.91 μC. A second particle has a mass of 7.27 x
10-3 kg and the same charge. The two particles are
initially held in place and then released. The particles fly apart,
and when the separation between them is 0.128 m, the speed of the
2.11 x 10-3 kg-particle is 142 m/s.
Find the initial separation between the particles.

One particle has a mass of 4.58 x 10-3 kg and a
charge of +6.79 μC. A second particle has a mass of 8.66 x
10-3 kg and the same charge. The two particles are
initially held in place and then released. The particles fly apart,
and when the separation between them is 0.193 m, the speed of the
4.58 x 10-3 kg-particle is 191 m/s. Find the initial
separation between the particles.

a) A block with a mass of 0.600 kg is connected to a spring,
displaced in the positive direction a distance of 50.0 cm from
equilibrium, and released from rest at t = 0. The block then
oscillates without friction on a horizontal surface. After being
released, the first time the block is a distance of 15.0 cm from
equilibrium is at t = 0.200 s.
What is the block's period of oscillation?
_______ s
b) A block with a...

Find the magnitude of the gravitational force (in N) between a
planet with mass 8.75 ✕ 1024 kg and its moon, with mass
2.45 ✕ 1022 kg, if the average distance between their
centers is 2.90 ✕ 108 m.
N
(b)
What is the moon's acceleration (in m/s2) toward the
planet? (Enter the magnitude.)
m/s2
(c)
What is the planet's acceleration (in m/s2) toward
the moon? (Enter the magnitude.)
m/s2

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 6 minutes ago

asked 35 minutes ago

asked 53 minutes ago

asked 55 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago