Answer:
Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. In physics, velocity is speed in a given direction. When we say a car travels at 60 km/h, we are specifying its speed.
Answer:
In essence, optical lenses bend and focus light, known as refraction. Prism lenses, however, refract light a bit differently. ... Light passing through a prism will bend towards the base, while the image of the object viewed with the prism moves toward the peak.
Explanation:
Newtons
Mass isn’t even a unit of measurement
Explanation:
When an object moves up in the air, kinetic energy (KE) is converted into potential energy (PE). When kinetic energy is exhausted, the object will stop rising and begin to descend. But the KE lost is all converted to PE.
1. Both kinetic energy when the gymnast leaves the trampoline and the potential energy achieved at the highest point are the same and equal to
PE(at highest point) = KE (when leaving trampoline)
= (mv^2)/2 = 60 kg * (7 m/s)^2 /2 = 1470 joules
2. Since the PE at the highest point is 1470 and equals mgh, we have
60*9.81*h = 1470 joules
Solve for h
h= 1470/(60*9.81) = 2.50 m
Answer:
A) 113.16 Hz
B) 339.47 Hz
565.79 Hz
Explanation:
Only odd harmonics are present in closed pipes that was why they asked for 3rd and 5th harmonics.