Answer:
B)154 J
Explanation:
Mass of bowling ball=m=6.55kg
Height of bowling ball from ground=h=2.4m
Acceleration due to gravity=
We know that
Potential energy=mgh
Where m=Mass of object
g=Acceleration due to gravity
h=Height of object from ground
Substitute the values then we get
Potential energy=
Hence, the increase in the ball's potential energy=154J
All you would do is for a, 10 times 2 is 20 so it would be 20-dB
For b, 10 times 4 is 40 so it would be 40-dB
For c, 10 times 8 is 80 so it would be 80-dB
Answer:
The ultimate determinant of truth in science is the execution of scientific experiments that prove or discredit a certain scientific statement. It was through scientific experiments that gravity was accepted scientifically.
Explanation:
Gravity was first observed by Isaac Newton, who quickly created theories and calculations to prove it and show that it exists, in addition to showing the influences it has on life and on the planet.
However its existence was discredited by several people, including men of science. Therefore, it was necessary to search for facts, calculations and evidence of its existence, so that it could be accepted and studied more and more deeply. The result of this, was the elaboration of diverse experiences that submitted the gravity to the most different tests until its existence was impossible to be denied.
Answer:
Explanation:
The kinetic friction between crate and the surface can be calculated as follows:
Assume that the direction of the 10 N constant force is on the right, the kinetic friction will go the left, then:
Answer: frequency = 523.2 Hz
Explanation:
One octave higher = 2f of the last octave.
For instance, if C2 = 4 Hz
A octave higher will be C3 in which its frequency will be 2 × 4Hz = 8Hz
Back to the question.
One octave higher frequency will therefore equal to:
2f = 2 × 261.6 = 523.2 Hz