Mechanical Advantage is always (Output Force) / (Input Force) .
MA = (20 N) / (2 N)
<em>MA = 10</em>
Answer:
k = 26319 N/m
Explanation:
given,
Period of bounce = 1.5 s
mass of the car = 1500 kg
four springs
to find the value of k

k = 26319 N/m
Now the value of force constant is k = 26319 N/m
Answer:
v = 42.92 m/s
Explanation:
Given,
initial speed of the ball, v = 11 m/s
time taken to hit the ground = 5.5 m/s
velocity of the ball just before it hit the ground, v = ?
time taken by the ball to reach the maximum height
using equation of motion
v = u + at
final velocity = 0 m/s
0 = 11 - 9.8 t
t = 1.12 s.
time taken by the ball to reach the water from the maximum height
t' - 5.5 -1.12 = 4.38 s
using equation of motion for the calculation of speed just before it hit the water.
v = u + a t
v = 0 + 9.8 x 4.38
v = 42.92 m/s
Velocity of the ball just before it reaches the water is equal to v = 42.92 m/s
Answer:
Part a: The average speed is 24.12 m/s
Part b: The rms speed is 25.55 m/s
Part c: The most probable speed is 17 m/s.
Explanation:
Part a
Average Speed
<em>Average speed is given as </em>
<em />

So the average speed is 24.12 m/s
Part b
RMS Speed


So the rms speed is 25.55 m/s
Part c
Most Probable Speed
As 7 particles have speed of 17 m/s i.e. 7 is the highest frequency so 17 m/s is the most probable speed.
Answer:
3100 m/s
Explanation:
The relationship between frequency and wavelength of a wave is given by the wave equation:

where
v is the speed of the wave
f is its frequency
is the wavelength
For the wave in this problem,
f = 15,500 Hz

Therefore, the wave speed is
