Physics, 05.10.2020 01:01 nicollexo21
a car travels at 3/4 the speed of light, and your friend happens to be on it. As you stand on the ground watching your friend pass by, lightning bolts strike both the front and the back of your friend’s railcar. If he saw the lightning bolts strike the front and the back of the railcar simultaneously, you will disagree. What do you say happened? Why? Note: this is different from the situation in the book. To find out who is right, you and your friendmeet on the ground and decide to measure the distance between the scorch marks and compare it to your measurement of the length of the car. Are your measurements what you expected it to be? Are your friend’s measurements what he expected it to be? Who was right about the timing of the lightning strikes? What can you conclude about events that are simultaneous in one reference frame?
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Physics, 21.06.2019 19:30
Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
Answers: 1
Physics, 21.06.2019 22:50
A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp
Answers: 1
Physics, 22.06.2019 01:10
The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2
Answers: 2
Physics, 22.06.2019 08:00
The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato
Answers: 3
a car travels at 3/4 the speed of light, and your friend happens to be on it. As you stand on the gr...
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