Answer:
Frequency=10 Hz
Period=0.1 s
Explanation:
Frequency of a wave is the number of complete cycles per unit time. Usually, frequency is cycles per second, with unit as Heartz
Given cycles of the wave as 200 and time as 20 seconds
Frequency=200÷20=10 cycles per second
Therefore, frequency is 10 Hz
Period is usually the reviprocal of frequency hence reciprocal of 10 Hz will be 1/10=0.1 s
Answer:
dA can be written as shown below:
r^ dA = r^ r2 sinθdθdφ
Explanation:
r^ dA = r^ r2 sinθdθdφ
where dA is an infinitesimal area element taken on the surface of a sphere of radius, r, centered at the origin and r^ is the radial component of the radius which given the value for n.
No you can’t because north and south attract eachother
Answer:
<h2>500 J</h2>
Explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
GPE = 5 × 10 × 10
We have the final answer as
<h3>500 J</h3>
Hope this helps you
