Answer:The gravitational force on the ball due to earth is exactly the same as the gravitational force on earth due to the ball
Explanation:
The gravitational force exist in pair. It form action-reaction pair.
Answer:
(D) The power supplied by the source decreases.
Explanation:
If additional resistors are connected in series, then the total resistance of the circuit is increased. By the Ohm’s Law, V = iR, the current decreases.
The power supplied by the source is P = i*i*R = i*(i*R). The term in the parenthesis is the voltage of the circuit and is constant. The ‘i’ outside decreases, therefore the power supplied by the source decreases.
Electrostatic forces between charges depend on the product of
the sizes of the charges, and the distance between them.
We should also mention the item about whether the charges are
both the same sign or opposite signs. That determines whether
the forces will pull them together or push them apart, which is a
pretty significant item.
Answer:
2.0
Explanation:
i think 2.0 because u are trying find the magnitude of it
Answer:
The time constant is 76.92 sec.
Explanation:
Given that,
Mass of bob = 1.00 kg
String length=1.00 m
Time = 25.0 s
Suppose we need to calculate the numerical value of the time constant τ.
We need to calculate the numerical value of the time constant τ
Using formula of time constant
![A=A_{0}e^{\dfrac{-t}{2\tau}}](https://tex.z-dn.net/?f=A%3DA_%7B0%7De%5E%7B%5Cdfrac%7B-t%7D%7B2%5Ctau%7D%7D)
Put the value into the formula
![5.10=6.00e^{\dfrac{-25.0}{2\times\tau}}](https://tex.z-dn.net/?f=5.10%3D6.00e%5E%7B%5Cdfrac%7B-25.0%7D%7B2%5Ctimes%5Ctau%7D%7D)
![e^{\dfrac{-25}{2\times\tau}}=\dfrac{5.10}{6.00}](https://tex.z-dn.net/?f=e%5E%7B%5Cdfrac%7B-25%7D%7B2%5Ctimes%5Ctau%7D%7D%3D%5Cdfrac%7B5.10%7D%7B6.00%7D)
![e^{\dfrac{-25}{2\times\tau}}=0.85](https://tex.z-dn.net/?f=e%5E%7B%5Cdfrac%7B-25%7D%7B2%5Ctimes%5Ctau%7D%7D%3D0.85)
![\dfrac{25}{2\tau}=0.1625](https://tex.z-dn.net/?f=%5Cdfrac%7B25%7D%7B2%5Ctau%7D%3D0.1625)
![\dfrac{1}{\tau}=\dfrac{0.1625\times2}{25}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B%5Ctau%7D%3D%5Cdfrac%7B0.1625%5Ctimes2%7D%7B25%7D)
![\dfrac{1}{\tau}=0.013](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B%5Ctau%7D%3D0.013)
![\tau=\dfrac{1}{0.013}](https://tex.z-dn.net/?f=%5Ctau%3D%5Cdfrac%7B1%7D%7B0.013%7D)
![\tau=76.92\ sec](https://tex.z-dn.net/?f=%5Ctau%3D76.92%5C%20sec)
Hence, The time constant is 76.92 sec.