Speed = (distance covered) / (time to cover the distance)
Speed = (121 m) / (30 sec)
Speed = 4.03 m/s (about 9 mph ... pretty slow for a bobsled)
False , the crests do not meet up along the medium
-palm
-fingers
-back
-thumb
Answer: Palm
Explanation: When you have a wire, you must point your thumb in the direction in which the electricity is going, and now you close your palm, in the direction in which you closed your hand is in the direction in which points the magnetic field.
Then the correct option is the first one, the palm points in the direction of the magnetic field.
Answer:
Fingers
Explanation:
The index finger shows the moving charge, while your middle finger shows the magnetic field line.
Answer:true, diamonds will scratch quartz.
Explanation: diamonds have a more compact composition. That is what makes them so hard. Quartz composition is not that compact, so diamond can scratch it.