Lol......
The value of the gravitational constant, G, does not change.
it is constant....never changes :)
Imaginative and original are the best choices here. I would not say they necessarily result in valid results, though.
A positively charged particle is a proton.
Negatively charged particles are electrons.
Particles with no charge are neutrons.
Answer:
Explanation:
We shall apply Doppler's effect here .
original frequency = 79.79 kHz
apparent frequency due to movement of source ( bat ) = 81.63 Hz
Let the velocity of bat be v .
expression for apparent frequency can be given as follows
n =
n is apparent frequency , n₀ is original frequency , V is velocity of light and v is velocity of source of sound
Putting the values
81.63 =
340-v = 332.33
v = 7.67 m /s
velocity of bat is 7.67 m /s .
In order to find the average speed we will use the formula
now here we know that distance from one edge to other edge is given as
now in order to find the average speed as per the formula above we need to know the time taken from one edge to other edge
so using above equation
here time can be found just by using the photo gates
If the photo gate will measure the time interval from one position to other then it will help to find the average speed