Answer:
just search it up you'll get ur answer
Answer: it’s Supernovae that are moving away at an accelerating rate.
Answer:
A) 0.
Explanation:
beats is the periodic variation in the loudness of a sound which is heard when two notes of almost the same frequency are played simultaneously.
Beats are used in tuning of musical instrument, e.g. a piano. To tune a piano, a piano tuner listens for beats produced between the sound from a standard tuning fork and that from a particular string on the piano when the piano key is struck. The tension in the piano string is adjusted until the beats disappear, i.e. when the frequencies are the same
Two tuning forks of frequency 256Hz and 254Hz are sounded simultaneously. Calculate the frequency of the resultant beat.
f == 2Hz
But in cases where beat is zero, it means the two notes are perfectly the same. This technique is used by a piano tuner to know that a key on the piano is tuned to the frequency of his tuning fork when he strikes them at the same time
NOTE : Hz means per second
Answer:
The maximum height reached by the ball is 20.4 m.
Explanation:
We have,
Mass of a ball is 15 kg
It is thrown straight upward with a speed of 20 m/s.
It is required to find the maximum height reached by the ball. Let the maximum height is h. As energy is conserved, the potential energy at the ball's highest point is equal to the kinetic energy when it is thrown. So,
So, the maximum height reached by the ball is 20.4 m.
A.oceanic plate diverging
B.central fault in a continental plate
C.oceanic and continental plates at a transform boundary
D.oceanic and continental plate converging
subject science