Answer:
The maximum height is 0.33 m.
Explanation:
initial velocity, u = 8 m/s
final velocity, v = 0 m/s
10% of kinetic energy is lost in friction.
The kinetic energy used to move up the top,
KE = 10 % of 0.5 mv^2
KE = 0.1 x 0.5 x m x 8 x 8 = 3.2 m
Let the maximum height is h.
Use conservation of energy
KE at the bottom = PE at the top
3.2 m = m x 9.8 x h
h = 0.33 m
Ya I'm in band so this should be easy person d has a b-flat person c has higher than a b-flat and person b has lower than a b-flat hope this helps I'm in band so I've been learning about notes like this
Acceleration = 75/3 = 25 m/s^2
Answer:
Explanation:
The relationship between wavelength and frequency is given by:
where
is the speed of light
f is the frequency
is the wavelength
In this problem, we know the wavelength:
So we can re-arrange the formula above to find the frequency:
Time and space are both relative
