Answer:the Forces cancel out each other
Explanation:the forces cancel out each other
Answer:
False
Explanation:
Let me put it in numbers. Jupiter has mass of 1.898x10^27Kg, make it 10 times as much and it becomes 1.898x10^28 Kg.
TRAPPIST-1, smallest star ever found has Mass of 1.77x10^29Kg, that is around 93 times larger than the mass of Jupiter.
Clearly 10 times as much is not enough to generate fusion reaction and become a star, in theory Jupiter must be at least 85 times larger than it's current mass to be able to generate fusion reaction and become a star.
So i think we can conclude that if Jupiter were to have 10 times of its own mass, it would not become a star, therefore the given statement is False.
Answer:
A vibration or oscillation is a periodically repeated reversal of the direction of movement.
Explanation:
Une vibration ou une oscillation est une inversion répétée périodiquement de la direction du mouvement.
Here is just another definition.
A vibration is periodic back-and-forth motion centerd around it's equilibrium.
Answer:
The store energy in the inductor is 0.088 J
Explanation:
Given that,
Inductor = 100 mH
Resistance = 6.0 Ω
Voltage = 12 V
Internal resistance = 3.0 Ω
We need to calculate the current
Using ohm's law
![V = IR](https://tex.z-dn.net/?f=V%20%3D%20IR)
![I=\dfrac{V}{R+r}](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7BV%7D%7BR%2Br%7D)
Put the value into the formula
![I=\dfrac{12}{6.0+3.0}](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7B12%7D%7B6.0%2B3.0%7D)
![I=1.33\ A](https://tex.z-dn.net/?f=I%3D1.33%5C%20A)
We need to calculate the store energy in the inductor
![U=\dfrac{1}{2}LI^2](https://tex.z-dn.net/?f=U%3D%5Cdfrac%7B1%7D%7B2%7DLI%5E2)
![U=\dfrac{1}{2}\times100\times10^{-3}\times(1.33)^2](https://tex.z-dn.net/?f=U%3D%5Cdfrac%7B1%7D%7B2%7D%5Ctimes100%5Ctimes10%5E%7B-3%7D%5Ctimes%281.33%29%5E2)
![U=0.088\ J](https://tex.z-dn.net/?f=U%3D0.088%5C%20J)
Hence, The store energy in the inductor is 0.088 J
Answer:
Explanation:
a )
momentum of baseball before collision
mass x velocity
= .145 x 30.5
= 4.4225 kg m /s
momentum of brick after collision
= 5.75 x 1.1
= 6.325 kg m/s
Applying conservation of momentum
4.4225 + 0 = .145 x v + 6.325 , v is velocity of baseball after collision.
v = - 13.12 m / s
b )
kinetic energy of baseball before collision = 1/2 mv²
= .5 x .145 x 30.5²
= 67.44 J
Total kinetic energy before collision = 67.44 J
c )
kinetic energy of baseball after collision = 1/2 x .145 x 13.12²
= 12.48 J .
kinetic energy of brick after collision
= .5 x 5.75 x 1.1²
= 3.48 J
Total kinetic energy after collision
= 15.96 J