Answer:
a = (v² − v₀²) / (2 (x − x₀))
Explanation:
v² = v₀² + 2a(x − x₀)
Subtract v₀² from both sides.
v² − v₀² = 2a(x − x₀)
Divide both sides by 2 (x − x₀).
(v² − v₀²) / (2 (x − x₀)) = a
1. the positioning of the sun
2. equinox
3. summer solstice
Answer:
A.
Explanation:
All the arrows align to the point right
Answer:
The activation energy is
Explanation:
From the question we are told that
The rate constant is k
at the temperature
The value of k is
at temperature
The value of k is
The rate constant is mathematically represented as
Where Q is the activation energy
R is the ideal gas constant with a value of
C is a constant
T is the temperature
For the first rate constant
For the second rate constant
Now the ratio between the two given rate constant is
=>
substituting values
=>
Answer:
B. A magnet being moved into or out of the coil
Explanation:
Faraday law of electromagnetic induction states that when there is change in flux , an emf is produced . Among the given instances , only in case of B , flux is changing . So current will be induced in the coil . We shall see how it takes place .
A wire carrying constant current will produce magnetic flux in nearby coil but there is no change in flux because current as well as position of wire with respect to coil are not changing .
Passing of magnetic field through a stationary coil produces flux in the coil but here too there is no change in flux so no current will be induced .
A magnet positioned near a coil creates magnetic flux in the coil but the magnitude of flux remains constant so no change in flux and no creation of induced current .