Answer:im just guessing d but i think its d though
Explanation:
it pretty obvious
Answer:
The net force acting on an object is proportional to the acceleration of that object with respect to an inertial frame of reference. The constant of proportionality in this, Newton's second law, is the classical mass of the object.
Explanation:
Hey! So referring to the data the thing we can clearly see is that in a vacuum, everything, regardless of its mass, falls at the same speed.
Acceleration is often confused with speed, or velocity, but the difference is, acceleration by definition is the rate of which an object falls with respect to its mass and time.
Every single thing in the world falls at the same acceleration, this is because of gravity. The difference is the speed of which it falls. In space, there is not any gravity, and so, the objects are able to fall at the same speed regardless of their mass.
Answer:
0.0129 V
Explanation:
The average emf induced in the coil is given by Faraday-Newmann-Lenz:
![\epsilon=-\frac{\Delta \Phi_B}{\Delta t}](https://tex.z-dn.net/?f=%5Cepsilon%3D-%5Cfrac%7B%5CDelta%20%5CPhi_B%7D%7B%5CDelta%20t%7D)
where
is the variation of magnetic flux through the coil
is the time interval
Here we have
B = 0.50 T is the strength of the magnetic field
The radius of the coil is
r = 35 cm = 0.35 m
So the area is
![A=\pi r^2 = \pi (0.35 m)^2=0.385 m^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2%20%3D%20%5Cpi%20%280.35%20m%29%5E2%3D0.385%20m%5E2)
The initial flux through the coil is
![\Phi_i = BA = (0.50 T)(0.385 m^2)=0.193 Wb](https://tex.z-dn.net/?f=%5CPhi_i%20%3D%20BA%20%3D%20%280.50%20T%29%280.385%20m%5E2%29%3D0.193%20Wb)
while the final flux is zero, since the coil has been completely removed from the magnetic field region; so, the variation of magnetic flux is
![\Delta \Phi = \Phi_f - \Phi_i = -0.193 Wb](https://tex.z-dn.net/?f=%5CDelta%20%5CPhi%20%3D%20%5CPhi_f%20-%20%5CPhi_i%20%3D%20-0.193%20Wb)
and so, the average emf induced is
![\epsilon=-\frac{-0.193 Wb}{15 s}=0.0129 V](https://tex.z-dn.net/?f=%5Cepsilon%3D-%5Cfrac%7B-0.193%20Wb%7D%7B15%20s%7D%3D0.0129%20V)