Answer:
1,8066 x 1024 atoms
Explanation:
1 mole of chromium contains 6,022 x 1023 atoms
so
3 moles of chromium contains 3 times as many atoms
3 x 6,022 x 1023 = 1,8 066 x 1024
I think its true. hope this helps.
Answer: When your bike stops from brakes.
Explanation: Force and friction affect our daily lives in numerous amounts of ways. For instance, when a football is kicked, it moves faster later after some time its force decreases due to friction. A common example of friciton is when a bike stops. When the brakes are applied the friction on the pads cause the bike to stop.
Answer: find the answer in the explanation
Explanation:
When a magnet is placed at the centre of the paper, and the nails are sprinkled on the paper, what will happen to the nails is that, the nails will form a pattern on the paper according to the magnetic field of the bar magnetic pole.
Other phenomena you can observe are:
1.) The nails will align themselves and show some lines of forces which is equivalent to the magnetic field lines
2.) The direction of the line of forces
3.) The strength of the magnetic field pole.
