Answer:
Explanation:
Kinetic energy gained by alpha particle
= charge x potential difference
1/2 mv² = 3.2 x 10⁻¹⁹ x 3.45 x 10⁻³
.5 x 6.68 x 10⁻²⁷ V² = 11.04 x 10⁻²²
V² = 3.3 x 10⁵
V = 5.74 x 100
= 574 m / s
Mechanical energy is conserved in respect of A , C and D .
Part B
B , C, are unknown .
Answer:
amplitude is 8.92 cm
speed of block is 44.11 cm/s
Explanation:
given data
mass = 0.650 kg
spring constant = 18 N/m
speed = 47 cm/s = 0.44 m/s
speed at x point = 0.350 A
to find out
amplitude of subsequent oscillation
solution
we know here conservation of energy
maximum kinetic energy = maximum potential energy
here we know k is spring constant and m is mass and A is amplitude and v is velocity
so solve it we get
A =
put here all these value
A =
A = 0.08931 m
so amplitude is 8.92 cm
and
by conservation of energy
initial energy = final energy
=
solve we gey V
V =
put here value Vm = 0.47 , and x = 0.350
V =
V = 0.4411 m/s
so speed of block is 44.11 cm/s
Answer:
PEgrav = m *• g • h
Explanation:
In the above equation, m represents the mass of the object, h represents the height of the object and g represents the gravitational field strength (9.8 N/kg on Earth) - sometimes referred to as the acceleration of gravity.
Hope this helps
Additional Information:
I couldn't get your question very clearly. In order to solve the question, I will define moment of inertia, state the formula and factors that the moment of inertia of a body depends and does not depend on.
Answer:
<u>Moment of inertia depends on;</u>
1. Mass of the body
2. Axis of rotation and
3. Distribution of the body
<u>Moment of inertia does not depend on;</u>
1. Angular velocity of the body.
Explanation:
The moment of inertia is defined as a quantity that determines the torque needed for a desired angular acceleration or a property of a body due to which it resists angular acceleration about a rotational axis.
Moment of Inertia, I = ∑mr²
Where,
I is the moment of Inertia
m is the mass
r is the distance from the axis of the rotation
The moment of inertia of a body depends on distribution of body, axis of rotation and mass of the body. However, the moment of Inertia of a body is not dependent on angular velocity of the body.