Q. A very small charged block with a mass of 2.05 g is placed on an insulated, frictionless plane inclined at an angle of 17.0° with respect to the horizontal. The block does not slide down the plane because of a 490 N/C uniform electric field that points parallel to the surface downward along the plane. What is the charge on the block?

Q. A car traveling 99km/h is 140m behind a truck traveling 72km/h. How long will it take the car to reach the truck?

## What will be the final temperature of the mixtureAn archer pulls her bow string back 0.40m by exerting a force that increases uniformly from zero to 25 N. How much work does the archer do in pulling back the bow. |

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## The ball''s velocity when the opposing player fields the ballThroughout liftoff, a hot-air balloon accelerates upward at a rate of 3m/s^2. The balloonist drops an object over the side of the gondola when the speed is 13m/s. |

## What is the thinnest film of on glassIf the ball's speed just before impact is 100 m/s, what is the angular speed of the rod immediately after the collision. |

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