Consider two identical electric bulbs of power P and resistance R. You connect them to a battery of voltage V. The first time you connect them in series with each other, and the second time in parallel. How will the illumination of the connection in parallel compare with the connection in series?

a. 1/2 of the illumination of connection in series

b. 2X as much illumination as connection in series

c. 1/4 of the illumination of connection in series

d. The same illumination as connection in series

e. 4X greater illumination as connection in series

Properties seen when one one substance changes to another are known as properties

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)