Physics, 22.04.2020 00:43 kaitlksndj
. A student claims that if lighting strikes a metal flagpole, the force exerted by the Earth’s magnetic field on the current in the pole can be large enough to bend it. Typical currents generated from a lightning strike are 104 to 105 amps. Is the student’s opinion justified? Explain your reasoning?
Answers: 1
Physics, 21.06.2019 13:00
Alexander calder's mobiles are an example of motion because it uses forces of wind and water.
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Physics, 21.06.2019 22:00
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
Physics, 22.06.2019 10:30
Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.
Answers: 1
Physics, 22.06.2019 13:00
What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud
Answers: 3
. A student claims that if lighting strikes a metal flagpole, the force exerted by the Earth’s magne...
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