Any sample of an <em>ELEMENT</em> is made of only one type of atom.
Here are some elements:
-- Hydrogen, Helium, Neon
-- Carbon (lead in a pencil, also diamonds)
-- Oxygen, Nitrogen, Argon (All mixed together in air, but not hooked up with other atoms)
Other elements you may have heard of:
-- Silver, Gold, Copper, Iron, Lead, Aluminum, Silicon, Chlorine, Calcium, Titanium, Nickel, Tin, Platinum, Mercury, Radium, Uranium
To protect a material from the influence of an external magnetic field, the material should be kept in soft iron ring.
So the correct answer is A.
Hope this helps,
Davinia.
The answer is might be 352
Answer:
1st statement is true
Explanation:
Here statement 1 is correct
Let think about it, if you push down the bar then you are lifting your weight off the pedals.
Obviously, this question does not take into account of racing bikes with straps on pedals, where you would push on one side and pull on the other to match your legs are doing, with straps your other leg can pull pedals upward.
on a given inclined we know that net force is given by
here we know that
so here we have
so here acceleration depends directly on angle of inclination
now we also know that if height of the inclined is H and its length is L
then we can write
so the acceleration is given as
so acceleration also depends directly on height of the inclined plane
