Answer:
multiply the number of moles of Na by the conversion factor 6.02214179×1023 atoms Na/ 1 mol Na, with 6.02214179×1023 atoms being the number of atoms in one mole of Na (Avogadro's constant), which then allows the cancelation of moles, leaving the number of atoms of Na.
Answer:
E=1485.9N/C
Explanation: =
Electric field E=kQ/r²,
where k is a constant with a value of 8.99 x 10^9 N m²/C²
Q is the point charge
r is the distance between two point charges =0.44m
O=32*10^-9
Hence
E=(32*10^-9*8.99 x 10^9)/0.44²
E=32*8.99/0.1936
E=287.68/0.1936
E=1485.9N/C
Coulomb's law states that: The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
Answer: the force of static friction of the sleigh on the crate
Explanation:
The force that is responsible for the crates increase in speed up the hill is the force of static friction of the sleigh on the crate.
When a light horizontal push is applied and which isn't enough to move the box, the static friction force will also be directly opposite to the push.
When an individual pushes harder, the force of the friction will then be enough to create a push.
<span>b) units and numbers</span>
