Physics, 05.03.2020 23:05 damari9288
A hobby rocket reaches a height of 82.5 m and lands 145 m from the launch point with no air resistance. What was the angle of launch with respect to the horizontal?
Answers: 2
Physics, 21.06.2019 17:30, stryjker
The ballistic pendulum was invented in 1742 by english mathematician benjamin robins. it consists of an initially stationary pendulum that moves after being struck by a bullet, and it is used to measure the original velocity of the bullet. the known variables are the bullet's mass m, the pendulum's mass m, and the height to which the block and bullet swing, determined by the length of the pendulum l and final angle θ. two principles of physics are necessary to solve for the bullet's original velocity. what are these principles? conservation of momentum and newton's third law conservation of energy and conservation of angular momentum grade summary deductions 0% potential 100% conservation of momentum and newton's second law. newton's second law and conservation of angular momentum. conservation of energy and newton's third law conservation of momentum and conservation of angular momentum. conservation of momentum and conservation of energy conservation of energy and newton's second law.
Answers: 2
Physics, 21.06.2019 18:00, giavanleer14
Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.
Answers: 3
Physics, 21.06.2019 20:30, jasminelynn135owmyj1
When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false
Answers: 1
Physics, 22.06.2019 00:10, SKYBLUE1015
The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.
Answers: 2
A hobby rocket reaches a height of 82.5 m and lands 145 m from the launch point with no air resistan...
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