Which of the below statements are true?
a. A person can walk a distance of 12 km and have a displacement of 20 km
b. A person can walk a distance of 20 km and have a displacement of 12 km.
c. The displacement of an object depends on the path taken from its initial
point to its final point.
Answers: 2
Physics, 22.06.2019 16:30
Select all the correct answers. which three statements about electromagnetic radiation are true?
Answers: 3
Physics, 22.06.2019 19:30
In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.
Answers: 1
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius ν
=0.381meters and mass ν=3.1νν. initially ν"is on the ground and ν#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of ν#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaΟv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and Ο is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and Ο = 1.2 kg/m3.
Answers: 2
Which of the below statements are true?
a. A person can walk a distance of 12 km and have a displac...
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