one thing that stringed, wind, and percussion instruments have in common in regard to the sounds they produce is that a. the ins
2 answers:
You might be interested in
Answer:
Explanation:
h = Planck's Constant =
A = Area = 1 m²
Distance between Earth and Sun =
= Wavelength = 580 nm
c = Speed of light =
Power output of Sun
Intensity
Energy of photons
Number of photons
The number of photons are
Answer:
0.345m
Explanation:
Let x (m) be the length that the spring is compress. If we take the point where the spring is compressed as a reference point, then the distance from that point to point where the ball is held is x + 1.1 m.
And so the potential energy of the object at the held point is:
where m = 1.3 kg is the object mass, g = 10m/s2 is the gravitational acceleration and h = x + 1.1 m is the height of the object with respect to the reference point
According to the conservation law of energy, this potential energy is converted to spring elastic energy once it's compressed
where k = 315 is the spring constant and x is the compressed length
x = 0.345 m or x = -0.263 m
Since x can only be positive we will pick the 0.345m