Answer:
A. 1.96 m/s.
B. 0.35 m.
C. 0.15 m.
Explanation:
A.
Velocity of a wave,v = f * lambda
Where,
f = frequency of the wave
Lambda = wavelength
Given:
T = 2.8 s
f = 1/T
= 1/2.8
= 0.36 hz
Lambda = 5.50 m
V = 5.5 * 0.36
= 1.96 m/s.
B.
Amplitude, a = distance/2
= 0.7/2
= 0.35 m.
C.
Amplitude, a = 0.3/2
= 0.15 m.
Answer:
An endoscope is a procedure used in medicine to look inside the body. It is used to diagnose diseases in different parts like Stomach, Colon,Ears,Nose, Heart etc...
Answer:
D. 5880 Joules
Explanation:
When the diver is at the highest point it has the maximum potential energy and his kinetic energy is zero due to zero velocity. As the diver jumps and accelerates during the downward motion his kinetic energy increases with the increase in speed. While the gravitational potential energy of the diver decreases due to a decrease in the height of the diver. According to the law of conservation of energy the potential energy of the diver is being converted into its kinetic energy during the downward motion. But the total mechanical energy of the diver remains constant which is equal to the sum of gravitational energy and the kinetic energy of the diver at any point.
Therefore the correct option is:
<u>D. 5880 Joules</u>
Answer:
independent” variable goes on the x-axis (the bottom, horizontal one) and the “dependent” variable goes on the y-axis (the left side, vertical one).
Explanation:
this is the answer I don't know if it's right
You can compare the velocity of the car, 60 mph, with the velocity that a mass would acquire when falls from certain height.
First, convert 60 mph to m/s:
60 miles/h * 1.60 km/mile * 1000 m/km * 1h/3600s = 26.67 m/s
Second, calculate from what height a body in free fall reachs 26.67 m/s velocity when hits the floor.
free fall => Vf^2 = 2g*H => H = Vf^2 / (2g)
H = (26.67m/s)^2 / (2*9.8 m/s) = 36.2 m
If you consider that the height between the floors of a building is approximately 3.6 m, you get 36.2 m / 3.6 m/floor = 10 floors.
Then, you conclude that the force of impact is the same as driving you vehicle off a 10 story building.