It is True.
<h3>What system removes and reduces heat caused by friction?</h3>
A mechanical brake applies a friction force to convert the kinetic energy of the vehicle into thermal energy which then dissipates into the atmosphere. Braking systems which don't use friction are referred to as regenerative braking systems (RBSs).
Slowing down is the most common way of controlling the speed of an article by restraining its movement. An item moving has motor energy and to halt the article this active energy should be taken out.
Eliminating the dynamic energy can be achieved by dispersing the energy to the air through grinding or by changing over it into one more type of energy. The most well-known sort of slowing down is a mechanical brake which hinders movement through rubbing brake cushions. A mechanical brake applies a grating power to change over the motor energy of the vehicle into nuclear power which then, at that point, disperses into the atmosphere.
Braking frameworks which don't utilize grinding are alluded to as regenerative slowing mechanisms (RBSs). In RBSs, the active energy is changed over into different types of valuable energy, which can be put away for sometime in the future, expanding eco-friendliness.
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Explanation:
Since, the gravity in moon is 1/6th that of earth.
Therefore,
5m ladder if climed on moon will be equal to 1/6th that on earth .i.e 5×1/6=0.83m
Heat can be transmitted by a conductor using conduction and convection method.
<u>Explanation:</u>
Heat energy can be transferred in three ways. In other words, the propagation of heat energy can be done by conduction, convection and radiation. Among these three conduction and convection requires a conducting medium, while radiation does not require any medium for transmitting the heat energy.
Conduction is the form of heat energy transfer where the energy is transmitted through the medium in contact with each other. So the electrons will collide with each other and the medium should be in contact and they should be highly conducting in nature, to perform conduction.
In case of convection, the liquid or gas molecules transfer the thermal energy from one point to another. No contact between the medium is required. It passes through the flow of gas or liquids. Thus, conduction and convection are the two methods by which heat can be transmitted by a conductor.
The experiment's time period is unaffected by the change in amplitude in either experiment.
<h3>What are the variables that affect time in SHM?</h3>
The time frame is provided by:
where,
T = Time period.
M = mass.
k = spring constant.
We can see from the formula above that the only factors affecting the time period in a Simple Harmonic Motion (SHM) are the object's mass and spring constant. Any changes in the object's mass or the spring constant will cause the time period to adapt.
<h3>Describe the Spring Constant.</h3>
The attribute is known as a spring's "spring constant" describes the relationship between the force acting on a spring and the displacement it causes. In other terms, it describes the stiffness and size of a spring's range of motion.
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Using kinematic equation v=u+at......... 1.
v = final velocity = 0 m/s. u = initial velocity = 13.5 m/s.
a = -0.5 m/s².
Plug all the known values in 1 to find t
