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Car A and Car B, each traveling along a freeway in adjacent lanes, undergo constant acceleration. At some instant, the velocity of car A exceeds the velcoity of car B.
(a) Is the acceleration of car A necessarily greater than the acceleration of car B? why or why not?
(b) Is the acceleration of car A necessarily positive? why or why not?
A tank holds a layer of oil, of thickness To = 1.43 m, that floats on a layer of syrup of thickness Ts = 0.640 m, What is the index of refraction of the oil
two 8ohm resistors are connected in parallel, as are two 4 ohm resistors. these two combinations are then connected in series in a circuit with a 12 v battery, estimate the voltage across each resistor
Calculate the absolute pressure at the bottom of a freshwater lake at a point whose depth is 26.2 m
A 32g bullet is fired from a rifle at 380 m/s into a water bottle at a pointblank range. The bullet travels completely through the 12 cm long bottle, find the average force exerted by the water on the bullet
Traffic is moving along the highway at 52 km/h on a rainy day. Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
To help prevent frost damage, fruit growers sometimes protect their crop by spraying it with water when overnight temperatures are expected to go below freezing. How much heat is released by the water when it freezes
A small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the table. A light, stretchless string tied to the small block passes down through the hole, and a larger block with mass m2 is suspen..
Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 20 m that makes an angle of 45, Calculate Tarzan's speed just before he reaches Jane
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.80{Hz}. Illustrate what is the mass of the fish, ignoring the mass of the spring.
The gravitational force exerted on a baseball is 2.14 N down. Through what distance does it move before its release
A particular fish tank filled with fresh water (n = 1.33) has a coral reef sticker stuck to an exterior wall, What is the index of refraction of the tank's walls
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