Physics, 09.11.2021 01:20 Abdimshsiwnsbs9686
The tower of a tower crane casts a shadow (on level ground) of 32 m when the sun is 55° above the horizon. What is the height of the tower?assuming that the ground slopes upward at 1:5 from the base of the crane to the end of the shadow, as shown.
Answers: 2
Physics, 21.06.2019 17:20, buiratsamah
You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u. s. legal proceeding.)
Answers: 3
Physics, 22.06.2019 07:20, Nadi4753
Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?
Answers: 3
Physics, 22.06.2019 19:30, cecelia090
Another word for electromagnetic energy is a. heat b. force c. matter d. radiation
Answers: 1
The tower of a tower crane casts a shadow (on level ground) of 32 m when the sun is 55° above the ho...
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