Answer:4
Explanation:
Given
Frequency of beats is 3 beats per second
Frequency of first tuning fork is ![f_1=440\ Hz](https://tex.z-dn.net/?f=f_1%3D440%5C%20Hz)
Beat frequency is difference in the frequency of tuning forks i.e.
either
or ![f_2-f_1 =3](https://tex.z-dn.net/?f=f_2-f_1%20%3D3)
so ![f_2=3+440=443\ Hz](https://tex.z-dn.net/?f=f_2%3D3%2B440%3D443%5C%20Hz)
or
![f_2=440-3=437\ Hz](https://tex.z-dn.net/?f=f_2%3D440-3%3D437%5C%20Hz)
so there is not enough information given to decide.
You can mark, lift and clean a ball on the green, but it's a violation to do so when another ball is in motion, as your ball might influence the outcome of that stroke. You can also mark and clean your ball in some instances when it's off the green: cleaning it, for example, just to the point where you can identify it.
Answer:
There is no place for first person in formal academic argumentative essay. However, you can use first person only if it has been asked to provide your personal opinion or reflection about the topic.
Explanation:
Answer:
v = 54 m/s
Explanation:
Given,
The maximum height of the flight of golf ball, h = 150 m
The velocity at height h, u = 0
The velocity of the golf ball right before it hits the ground, v = ?
Using the III equations of motion
<em> v² = u² + 2gh</em>
Substituting the given values in the above equation,
v² = 0 + 2 x 9.8 x 150 m
= 2940
v = 54 m/s
Hence, the speed of the golf ball right before it hits the ground, v = 54 m/s