Answer: Arrow B
Explanation:
Arrow B best best represents the path the ball follows after the string breaks.
This is because the described situation is related to <u>uniform circular motion</u>, in which the tangential velocity is the linear velocity vector that is <u>always tangent to the trajectory</u> and is the distance traveled by the ball in its circular motion in a period of time.
Hence, if this circular motion suddenly stops, the ball will fly in a direction that is tangent to that circle.
Answer:
7.99 × 10⁸ atoms
Explanation:
The diameter of Molybdenum atom is 418pm = 0.000000000418m
therefore to determine number of Mo Atoms that'll be required =
0.334 ÷ 0.000000000418 = 7.99 × 10⁸ atoms
Mass of one Mo atom = 1.59×10⁻²² g
Mass of 7.99 × 10⁸ atoms that'll be required = 1.59×10⁻²² × 7.99 × 10⁸ =
12.7041 × 10⁻¹³g.
Answer:
E = {(Charge Density/2e0)*(1 - [z/(sqrt(z^2 - R^2))]}
R is radius = Diameter/2 = 0.210m.
At z = 0.2m,
Put z = 0.2m, and charge density = 2.92 x 10^-2C/m2, and constant value e0 in the equation,
E can be calculated at distance 0.2m away from the centre of the disk.
Put z = 0.3m and all other values in the equation,
E can be calculated at distance 0.3m away from the centre of the disk
If a large amount of energy is added to a gas, it produces plasma, which is neither a solid, liquid, or gas.
Generally, a material in solid form is more dense than in liquid form. However, an exception to this rule is water, where the solid is less dense than the liquid (hence ice floats in water)