Answer:
A point on the outside rim will travel 157.2 meters during 30 seconds of rotation.
Explanation:
We can find the distance with the following equation since the acceleration is cero (the disk rotates at a constant rate):
Where:
v: is the tangential speed of the disk
t: is the time = 30 s
The tangential speed can be found as follows:
Where:
ω: is the angular speed = 100 rpm
r: is the radius = 50 cm = 0.50 m
Now, the distance traveled by the disk is:
Therefore, a point on the outside rim will travel 157.2 meters during 30 seconds of rotation.
I hope it helps you!
When the fluid flows to carry heat to a different place, that's 'convection'.
An amplifier (often loosely called an "amp") is an electromagnetic<span> or </span>electronic<span> component that boosts an </span>electric<span> current. If you wear a </span>hearing aid<span>, you'll know it uses a </span>microphone<span> to pick up </span>sounds<span> from the world around you and convert them into a fluctuating electric current (a </span>signal<span>) that constantly changes in strength. A transistor-based amplifier takes the signal (the </span>input<span>) and boosts it many times before feeding it into a tiny loudspeaker placed inside your ear canal so you hear a much-magnified version of the original sounds (the </span>output<span>).</span>
Answer:
v = 42.33 m/s
Explanation:
The time difference between two pulses that are emitted by Police is observed in the interval
now the speed of the electromagnetic wave is given as
now the distance traveled by them
so distance of speeding vehicle covered for round trip of wave is 38.1 m
now for one trip it is given as d = 19.05 m
now the speed of the vehicle is given as
Answer:
No
Explanation:
In the photoelectric effect,
The number of the electrons which are being emitted is directly proportional to the intensity of the light and is independent on the frequency of the incident radiation of the light which has the frequency greater than the threshold frequency.
Thus, on increasing the frequency of the light which is being shinned on the metal , there is no change in the electrons which are being emitted.