From Doppler shifts of the spectral lines in the light coming from the east and west edges of the Sun, astronomers find that the
radial velocities of the two edges differ by about 4 km/s, meaning that the Sun’s rotation rate is 2 km/s. Find the approximate period of rotation of the Sun in days. The circumference of a sphere is given by 2πR, where R is the radius of the sphere
The figure shown above is series combination as the two resistors (bulb) are there which are then connected to the battery so i conclude from the above options given the option is B hope it helps
Let's assume that the x-axis is aligned with the incline and the positive direction is up the incline. We can then apply Newton's 2nd law as follows:
Note that the net force is zero because the block is moving with a constant speed when the angle of the incline is set at Solving for the angle, we get
