I think 1 and 3 is absolutely right but im not sure about number 2.
I think the answer is 4 all of the above because as the vibration decrease automatically the kinetic energy decrease and the temperature is decrease because when the vibration of molecules decrease thats mean the substances is slightly become a solid and you can get a solid cube of liquid if you freeze them
Speed and tangential acceleration is zero are constant in uniform circular motion
<h3>Further explanation
</h3>
Uniform circular motion is the motion of an object in a circle at a constant speed.
An object moving in uniform circular motion is moving around the circle perimeter with a constant speed. While the speed of the object is constant, its velocity is changing. Velocity, being a vector, has a constant magnitude but a changing direction. Wheres the the tangential component of acceleration is zero in a uniform circular motion. But its value is not zero in a non uniform circular motion.
In uniform circular motion, it is results in change of velocity (velocity has two components such as speed and direction). Because the velocity changes, the acceleration exists. The direction of acceleration in this case is radial, tangential component is zero so the speed is not varying with time. Acceleration exists because of the change in direction of particle’s velocity.
Tangential acceleration quantities are zero throughout the motion. Since a uniform motion itself defines to be a constant velocity motion in which the rotation is going on at a constant speed, the tangential component of acceleration is zero.
<h3 /><h3>Learn more</h3>
- Learn more about uniform circular motion https://brainly.in/question/4807771
<h3>Answer details</h3>
Grade: 9
Subject: physics
Chapter: uniform circular motion
Keywords: uniform circular motion
Answer:
<u>Resistance</u><u> </u><u>is</u><u> </u><u>1</u><u>.</u><u>7</u><u>5</u><u> </u><u>ohms</u>
Explanation:
Magnetic flux:
N is number of turns, N = 8
B is magnetic flux
A is area of projection.
From faradays law:
where E is the Electro motive force.
But E = IR
where I is current and R is resistance:
Answer:
1.12μC
Explanation:
From the expression use to determine the capacitance of a capacitor, which is given below
from the above since the distance,"d" is given is 1.1mm(0.0011m)
Area= 0.3m*0.08=0.024m
V=5.8KV
if we compare both equations above, we can do away with the capacitance
if we substitute the value of the voltage, area, distance and the constant we arrive at
Hence the magnitude of the charge is 1.12μC
Answer:
vx = 65 yd/3 sec = 21.7 yd/sec since horizontal speed is constant
vy = g t = (32 / 3) yd/sec^2 * 1.5 sec = 16 yd/sec where 32/3 is the acceleration due to gravity in yds / sec^2 and 1.5 is the time to travel each way in the vertical direction
V = (vx^2 + vy^2)^1/2 = (21.7^2 + 16^2)^1/2 = 27 yd/sec
tan theta = vy/vx = 16 / 21.7 = .737 theta = 36.4 deg
You can check using the range formula:
R = v^2 sin (2 theta) / g = 27^2 * .955 / (32 / 3) = 65.3 yds
The difference from 65 yds may be rounding error.