Answer:
1 hour and 25 minutes
Explanation:
hopefully this helps ,, but like WHY phineas and ferb hshjdshjdhdhdbd im so childish
Average speed of the car is defined as the ratio of total distance and total time
So here we will have
now we know that
time = 5 h
now from above equation we will have
so the average speed will be 90 km/h
Answer:
19.98Joules
Explanation:
Energy possessed by the body is the kinetic energy
Kinetic Energy = 1/2mv²
m is the mass
v is the velocity
For the 4kg moving at 6m/s
kE = 1/2 * 4 * 6^2
KE = 1/2 * 4 * 36
KE = 72Joules
For the 4kg moving at 5.1m/s
kE = 1/2 * 4 * 5.1^2
KE = 1/2 * 4 *26.01
KE = 52.02Joules
Amount of Energy lost = 72 - 52.02
Amount of Energy lost = 19.98Joules
Hence the amount of Energy lost is 19.98Joules
The speed of waves are determined by the frequency of the push(wind). This really determines what the wave is being pushed by. If it were a Tsunami it would be by the frequency of the Tsunami if it were from the wind then the winds frequency would determine it's speed. Also the wavelength determines the speed because of the wight it has, but again something has to cause this wave to move.
B. is your answer because C. worker are gonna be too busy to instruct you.
D. what if their is no other way to get to your location.
A.you don't wanna rush because you might cause harm to someone.
hope this helps :)
