Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.
Answer:
1. λ = 0.48 cm = 4800 μm
2. υ = 6.25 x 10¹⁰ Hz
3. E = 4.14 x 10⁻²³ J
Explanation:
1.
Since, the wavelength is defined as the distance between two consecutive or successive crests or troughs. Therefore, in this case the wavelength will be equal to:
Wavelength = λ = Distance between 5 successive crests/5
λ = 2.4 cm/5
<u>λ = 0.48 cm = 4800 μm</u>
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2.
The frequency of photon can be given as:
υ = c/λ
where,
υ = frequency of photon = ?
c = speed of light = 3 x 10⁸ m/s
λ = wavelength = 0.48 cm = 0.0048 m
Therefore,
υ = (3 x 10⁸ m/s)/(0.0048 m)
<u>υ = 6.25 x 10¹⁰ Hz</u>
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3.
Now, the energy of photon is given as:
E = hυ
where,
E = Energy = ?
h = Plank's Constant = 6.626 x 10⁻³⁴ J.s
Therefore,
E = (6.626 x 10⁻³⁴ J.s)(6.25 x 10¹⁰ Hz)
<u>E = 4.14 x 10⁻²³ J</u>
Answer:
1300.80988 Nm
730.79206 kgm²
Explanation:
m = Mass of ladder = 23.8 kg
g = Acceleration due to gravity = 9.81 m/s²
L = Length of ladder = 9.08 m
F = Applied force = 260 N
= Angular acceleration = 1.78 rad/s²
I = Moment of inertia
Weight is given by
The center of gravity of the ladder lies at the center of the ladder
Torque will be
The net torque acting on the ladder is 1300.80988 Nm
Torque is also given by
The moment of inertia of the ladder is 730.79206 kgm²
In my opinion, it would be coke because of all the pressure
Answer:
Potential energy is
Explanation:
Given situation is shown in figure 1
In order to calculate the potential energy at the moment block started moving we first have to calculate the net force acting on the block. For this consider figure 2
<h3>Forces acting in vertical direction:</h3>
Normal force Fn acting on block is in upward direction which is balanced by horizontal component of weight of block acting in opposite direction.
<h3>Forces acting in horizontal direction:</h3>
Tension in string is equal and opposite to frictional force and and vertical component of weight as show in figure 2
Frictional force is:
From (1)
(2) becomes then
If spring is not accelerating then tension in rope must be equal spring force i.e
Then (2) becomes
Potential energy is given as