speed=frequency*wavelength, so frequency=speed/wavelength. frequency=80*0.2
Frequency = 16 Hz
Answer:
K.E=107.56J
Explanation:
Given data
v=85 miles/hour
convert it to meter per second we get
v=37.9984 meter/second
m (baseball mass)=149 gram
convert it to Kg we get
m=0.149 kg
K.E (Kinetic Energy)=?
Solution
Answer:
60,000 kgm/s
Explanation:
momentum equation,
momentum = mass × velocity.
mass = 2000kg
velocity = 30m/s
when multipled you get = 60,000 kgm/s
hope it helps. :)