1. Two bulbs of 100 W, 120 V and 20 W, 120 V are connected in parallel across V source. Find current in each bulb. Which bulb will consume more energy? 2. How does the resistance of a wire change when:
(i) its length is tripled? (ii) its diameter is tripled?​

When an object is heated it contracts. a. true b. false

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?