Answer:
The escape speed on the other planet is V
Explanation:
Escape velocity V = √2GM/R where M = mass of planet and R = radius of planet. G = gravitational constant
Let V₁ and V₂ be the escape speeds on planet one and two respectively.
if V₁ = √2GM₁/R₁ and V₂ = √2GM₂/R₂ and M₂ = 2M₁ and R₂ = 2R₁ (since it is twice the size of the first planet)
V₂ = √2GM₂/R₂ = V₂ = √(2G × 2M₁/2R₁) = √2GM₁/R₁ = V₁ = V
So the escape speed on the other planet is V
Answer:
Option B
Solution:
As per the question:
Length of the suspended wire, l = 16 cm = 0.16 m
Distance between the long wire and the suspended wire, R = 1.5 mm = 0.0015 m
Mass of the 16 cm wire, m = 0.014 kg
Now,
We know that the magnetic field due to the two parallel current carrying straight long wires with current 'I' and the separation 'R' between the wires is given by:
(1)
If the suspended wire floats, force due to its weight is balanced by the magnetic force due to current I:
mg = IBl
Also, from eqn (1):
mg =
mg =
I = 80.19 A
I = 80 A (approx)
Answer:
1) Addition of a catalyst
2) To change the reaction rate of slope B to look like slope A, simply add a catalyst to speed up the rate of reaction, giving you a higher amount of products in a shorter amount of time (line A)
Explanation:
1 and 2)Two things can alter the rate of a reaction, either the addition of a catylist which will not alter the composition of the products or reactants, but will accelerate the reaction time, or an increase in temperature will also increase the rate at which a reaction will occur.
You could choose temperature also and have the same result, it's your choice both are correct, but catalyst is the easiest.
At what angle torque is half of max
A material is said to be ductile if it can be stretched thin when tensile stress is administered. Such a material can be stretched into a wire.
This is different from malleability which describes a material that can bend or alter shape using compressive force e.g. hammering , rather than tensile stress.
Tensile stress is a type of force or stress that alters the length of a material in the same direction as the force being applied.
The opposite of ductile is brittle. Brittle materials can break when subjected too much tensile stress.