Answer:
The formula for kinetic energy is K = 1 2 m v 2 K = \dfrac{1}{2}mv^2 K=21mv2
Answer: 20m
Explanation:
Use equation
A=F*s
F=6000N
A=120000J
-----------------------------
s=A/F
s=120000J/6000N
s=20m
Answer:
The value is
Explanation:
From the question we are told that
The average acceleration of the bicycle is
The initial forward velocity is
Generally from kinematic equations we have that
Here v is the final velocity of the bicycle and the value is v = 0 m/s
So
=> t = 18.6 s
Answer:
The velocity for the particle is (1i+2tj).
Explanation:
Given that,
The particle position is
...(I)
In form of x and y
....(II)
...(III)
From equation (II)
Put the value of t in equation (III)
We need to calculate the velocity
Velocity is the rate of change of the position of the particle
Hence, The velocity for the particle is (1i+2tj).
<h3><u>Answer and explanation;</u></h3>
- <em><u>Sound waves are mechanical waves and are examples of the longitudinal type, a longitudinal wave involves the movement of molecules in the medium parallel to the direction of the wave.</u></em>
- Sound waves are longitudinal mechanical waves because they move particles parallel to their direction of travel. For example, if a sound wave travels from left to right.
- <em><u>Pitch is what we perceive as the low or high note quality of a sound. Pitch is determined by the frequency of the sound wave that moved through the air to our eardrums. Frequency is the time taken for a complete oscillation of a wave. </u></em>
- The more energy or work used to create the vibration, which in turn creates the sound wave, the greater the amplitude of the wave and the louder the sound. Wavelength is the distance between two successive rarefactions or compression in a longitudinal wave.
- For example, if you were to lightly hit a drum with a drum stick, there would be a softer sound as opposed to the loud boom that would be created if you hit the drum with all of your might