Question

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/s^{2} and that of
the second to be 8.4 m/s^{2}. 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?

Answer #1

**Answer**

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 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

Two point-like particles with equal but opposite charge are
placed 18.3 cm apart and released. The first particle has a mass of
19.2 g and initially accelerates toward the second particle at 6.78
m/s2. The second particle initially accelerates toward
the first at 2.11 m/s2. Find the magnitude of the charge
on each particle, and the mass of the second particle. [ans.
6.96×10-7 C, 61.7 g]

Two particles, with identical positive charges and a separation
of 2.77 × 10-2 m, are released from rest. Immediately after the
release, particle 1 has an acceleration a1 whose magnitude is 4.70
× 103 m/s2, while particle 2 has an acceleration a2 whose magnitude
is 10.1 × 103 m/s2. Particle 1 has a mass of 6.73 × 10-6 kg. Find
(a) the charge on each particle and (b) the mass of particle 2.

Two particles, with identical positive charges and a separation
of 3.24 × 10-2 m, are released from rest. Immediately after the
release, particle 1 has an acceleration a1 whose magnitude is 5.92
× 103 m/s2, while particle 2 has an acceleration a2 whose magnitude
is 7.22 × 103 m/s2. Particle 1 has a mass of 7.54 × 10-6 kg. Find
(a) the charge on each particle and (b) the mass of particle 2.

Two particles which have the same magnitude charge but opposite
sign are held r = 7 nm apart. Particle I is then released
while Particle II is held steady; the released particle has a mass
of 8.72 × 10-23 kg. Particle I's speed is 110 km/s when
it is 0.74r away from Particle II.
1. What is the magnitude of the charge on one
of the particles?
2. If the particles are still initially held 7 nm apart but
both...

(a) Two particles which have the same magnitude charge but
opposite sign are held 9.00 nm apart. Particle I is then released
while Particle II is held steady; the released particle has a mass
of 1.02 10-22 kg. Particle I's speed is 108 km/s when it is 4.5 nm
away from Particle II. What is the magnitude of the charge on one
of the particles?

Two particles with the same mass, 70.0 g, are released from rest
in space with an initial distance of 0.85 m between them. Particle
A has charge 14.5 μC while particle B has charge 62.0
μC. What is the kinetic energy (in J) of
particle B at the instant when the particles are 2.60 m apart?
Round your answer to 2 decimal places.

Two 0.60 g spheres are charged equally and placed 2.3 cm apart.
When released, they begin to accelerate at 100 m/s2 . What is the
magnitude of the charge on each sphere?

Two 1.0g spheres are charged equally and placed 2.5cm apart.
When released, they begin to accelerate at 140m/s2
What is the magnitude of the charge on each sphere? the unit of
answer is nC

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