Answer:
Explanation:
In this process energy must be conserved. On the initial stage, there will be only gravitational potential energy, while on the final stage there will be only elastic potential energy, so they will be equal. We write this as:
Which is the same as:
So we can obtain our mass from there, and for our values:
Answer:
a. the amount of work done on a system is dependent of pathway
Explanation:
The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system.
ΔU = Q - W
Where;
Q, the net heat transfer into the system depends on the pathway
W, the net work done by the system also depends on the pathway
But, ΔU, the change in internal energy is independent of pathway
Therefore, the correct option is "A"
a. the amount of work done on a system is dependent of pathway
Answer:
i & 2
Explanation:
U alr finished it so there's no point
Number of rulings per centimeter for the grating 4.5 x 10^3 grooves/cm
Given:
wavelength of light = 635.00 nm
angle of first order = 38.0∘
To Find:
Length of slits marked on grafting
Solution: Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant
We use the grating equation dsinθ = mλ
d = mλ/sinθ
d = 1 x 635x10^-7 m/sin 38.0∘
d = 2189.6 x 10^-7 m
Thus the grating gauge is
1/d = 0.00045 x 10^7 = 4.5 x 10^3 grooves/cm
So, number of rulings per centimeter for the grating 4.5 x 10^3 grooves/cm
Learn more about Wavelength here:
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Answer:
The acceleration caused by a net force of 2 N on a 2 kg mass is 1 m/s²
Explanation:
The given parameters on an applied force is as follows;
The acceleration given to a 1 kg mass by a 1-N net force = 1 m/s²
According to Newton's second law of motion, the acceleration, "a", given to an object by a force, "F", is proportional to the magnitude of the net force
Therefore, we have;
F ∝ a
The constant of proportionality is given as the mass, "m", of the object, therefore, we have;
F = m × a
The acceleration given to a 2 kg mass by a 2-N net force is given therefore, given as follows;
2 N = 2 kg × a
a = 2 N/(2 kg) = 1 m/s²
The acceleration, "a", caused by a net force of 2 N on a 2 kg mass is a = 1 m/s².
