Net centripetal force is given by the product of mass and centripetal acceleration
Here we know that
mass (m) = 20 kg
speed (v) = 10 m/s
radius (R) = 15 m
So here we can say that centripetal acceleration is given as
now from the formula of force
<em>so correct answer would be 133 N</em>
The characteristics of the standing wave we can find the backlash for the frequency of the wave when the string is shortened is:
- The new frequency is f = 657 Hz
<h3>How is a standing wave produced?</h3>
A standing wave is produced when a traveling wave meets an obstacle and bounces, the sum of the two waves results in a wave that does not propagate in space.
In the event that the obstacle is a fixed point, there is a node at this point. The expression for the length of the standing wave.
L = fundamental frequency
L = second harmonic
L = third harmonic
L = general term.
Where L is the length of the chord, lan the wavelength and n an integer.
Wave speed is related to wavelength and frequency.
v = λ f.
Let's substitute.
v =
They indicate that initially the string has a length of L₀ = 327 mm= 0.327m and the frequency is f₀ = 440 Hz.
v n = 2L₀ f₀
v n = 2 0.327 440
v n = 287.76
They indicate that the tension on the string do not changes and the speed of the wave depends only on the tension and the density of the string, therefore it is constant, we assume that the harmonic does not change either, therefore the new length.
v n = 2 L f
Let's substitute.
287.76 = 2 L f
f =
Let's calculate.
f =
f = 656.99 Hz
In conclusion with the characteristics of the standing wave we can find the backlash for the frequency of the wave when the string is shortened is:
- The new frequency is: f = 657 Hz
Learn more about standing waves here: brainly.com/question/17031219
Given:
Time taken for the travel: 40 mins=2400 secs
Velocity: 1.2m/s
Speed and velocity have the same magnitude. Speed is a scalar where as velocity is a vector quantity.
Distance traveled= speed x time.
Distance traveled: 1.2 x 2400=2880m
Answer:
3.) 0.3 m
Explanation:
Given parameters:
Torque = 40Nm
Force = 133N
Unknown:
Distance from the nut that the mechanic must apply the force = ?
Solution:
Torque is the force that causes an object to rotate on its axis;
Torque = force x distance
Distance = = 0.3m
Answer:
all chemical reaction involved in early enough energy used to break bonds in reactants and energy released when you want from product
Edith a remake reaction absorb energy and epidemic reaction release energy flow of conversion of energy states that matter cannot be created or destroyed .