Who found iron and where was it discovered?
For unlimited access to Homework Help, a Homework+ subscription is required.
The distinction between mass and weight was discovered after Jean Richer transported pendulum clocks from Paris, France, to Cayenne, French Guiana in 1671. He found that they quite systematically ran slower in Cayenne than in Paris. The effect was reversed when the clocks returned to Paris. How much weight would a 72.0 kg person lose in traveling from Paris, where g = 9.8095 m/s2, to Cayenne, where g = 9.7808 m/s2?
A solenoid is near a piece of iron, as shown in the figure. If a current is turned on in the solenoid, a magnetic field is created. This magnetic field will magnetize the iron, and there will be a net force between the solenoid and the iron. (Figure 1)
A) Will the force on the iron be attractive or repulsive?
(Choose one)
B) Suppose this force moves the iron. Which way will the iron move?
To the right away from the solenoid
To the left towards the solenoid
C) As the iron moves, what will happen to the strength of the force?
It will decrease
It will increase
It will not change
A cube of iron has dimensions a x a x a. A hole of radiusa/4 has been drilled all the way through the cube, so that oneside of the hole is tangent to one face along its entirelength. Where is the center of mass of the drilled cube?P.S: No image was given in the question, that's why it is confusingto me.
