Physics, 25.06.2019 08:40, abbygriffin2009
As you drive your car along a country road at night, a deer jumps out of the woods and stands in the middle of the road ahead of you. this occurs just as you are passing from a 55-mi/h zone to a 50-mi/h zone. at the 50-mi/h speed-limit sign, you slam on the car's brakes, causing them to lock up, and skid to a stop inches from the startled deer. as you breathe a sigh of relief, you hear the sound of a police siren. the policeman proceeds to write you a ticket for driving 56 mi/h in 50-mi/h zone. because of your preparation in physics, you are able to use the 33.5-m-long skid marks that your car left behind as evidence that you were not speeding. based on your evidence, at what speed were you actually driving? (the coefficient of friction between between automobile tires and dry concrete is 0.80.)
Answers: 1
Physics, 21.06.2019 22:40, exoticbunnylover123
Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod
Answers: 1
Physics, 22.06.2019 11:00, zhjzjzzj6325
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?
Answers: 3
Physics, 22.06.2019 21:20, CM0
Abeverage can is made of 3004-h19 aluminum alloy (elastic modulus 69 gpa, tensile yield strength 285 mpa, density 2.72 g/cm^3). the dimensions on the can are approximated as a thin-walled cylinder with a height of 4.83 inches, diameter of 2.60 inches. empty the can has a mass of 14.2 g. determine: a. the wall thickness of the cylinder b. assuming a pinned-pinned condition what is the critical load? c. assuming a fixed-fixed condition what is the critical load?
Answers: 1
As you drive your car along a country road at night, a deer jumps out of the woods and stands in the...