Two diverging light rays, originating from the same point, have an angle of 5° between them. After the rays reflect from a plane mirror, what is the angle between them? Construct one possible ray diagram that supports your answer.
Answers
Answer:
5°
Explanation:
Two diverging light rays, originating from the same point, have an angle of 5° between them.
According to laws of reflection the angle of incidence is equal to the angle of reflection.
From the attached figure, it is clear that the after reflection from a plane mirror the angle between two rays will be 5°.
O be the originating point. m and n two diverging light rays. When they strikes at the plane mirror, the laws of reflection still fulfilled.
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Every 10 seconds a pendulum completes 2 cycles. what are the period and frequency of this pendulum
How should you test a hypothesis?
List and describe the 5 health reaped components of fitness.
Answers
Answer:
0.324 T
Explanation:
Parameters given:
Number of turns, N = 1850
Resistance, R = 30Ω
Area of each turn, A =
Charge in the circuit, q =
The induced EMF in the coil is given as:
EMF is also given in terms of current, I, and resistance, R, as:
V = IR =
=>
Charge, q, is the product of current and time. Hence:
It = q
=>
Hence, magnetic field, B, will be:
The magnitude of magnetic field, |B| will be |-0.324| = 0.324 T
Answers
Answers
Answer:
3.117 m
Explanation:
Given that:
the distance of separation between speaker A and speaker B (L) = 6.69 m
Frequency (F) = 750 -Hz tone
Velocity of speed of sound = 343 m/s
The distance from Speaker A to the first point (L₁) on the line can be calculated by using the formula:
where A =
we have:
∴ the distance from speaker A to the first point on the line between the speakers where constructive interference occurs = 3.117 m
Answers
Each of you gets a pallet of bricks, and you have to
put the bricks up on the bed of a truck, by hand.
Both pallets have the same number of bricks.
The pallet is way too heavy to lift, so you both cut the bands
that hold the bricks, and you lift the bricks from the pallet onto
the truck, by hand, two or three or four bricks at a time.
-- You get your pallet of bricks onto the truck in 45 minutes.
-- Your partner gets his pallet of bricks onto the truck in 3 days.
-- Work = (force) times (distance).
You and your partner both lifted the same amount of weight
up to the same height. You both did the same amount of work.
-- Power = (work done) divided by (time it takes to do the work) .
Your partner took roughly 96 times as long as you took
to do the same amount of work.
You did it faster. He did it slower.
You produced more power. He produced less power.
Answers
Answer: Electron e3 must emit a photon of light in order to drop down from the n=5 to the n=4 energy level.
Explanation:
When an electron drops from a higher energy level to a lower energy level, it releases energy. This energy is emitted in the form of a photon, which is a particle of light. The wavelength of the photon is determined by the difference in energy between the two energy levels.
In this case, the electron is dropping from the n=5 energy level to the n=4 energy level. The difference in energy between these two levels is 2.18 eV. So, the photon that is emitted will have a wavelength of 121.6 nanometers.
The emission of a photon by an electron is a quantum mechanical process. This means that it cannot be predicted exactly when the electron will emit the photon. However, it is possible to calculate the probability of the electron emitting the photon at a given time.
The probability of the electron emitting the photon is greatest when the electron is in the n=5 energy level. As the electron falls to the n=4 energy level, the probability of emitting the photon decreases.
The emission of a photon by an electron can be used to study the structure of atoms and molecules. It can also be used to generate light of a specific wavelength, which is useful in a variety of applications, such as lasers and spectroscopy.
Answers
To find the mass of the block of ice, we can use the equation:
Weight = Mass × Acceleration due to gravity
In this case, the weight of the block of ice is given as 520 Newtons. The acceleration due to gravity on Earth is approximately 9.8 m/s².
So, let's plug in the given values into the equation:
520 N = Mass × 9.8 m/s²
To solve for mass, we can rearrange the equation:
Mass = Weight ÷ Acceleration due to gravity
Mass = 520 N ÷ 9.8 m/s²
Calculating this gives us:
Mass ≈ 53 kg
Therefore, the correct answer is C. 53 kg.
Final answer:
The mass of a block of ice that weighs 520 Newtons on Earth is 53 kg.
Therefore, the answer is option c
Explanation:
The weight of an object can be calculated using the formula weight = mass x acceleration due to gravity. In this case, the weight of the block of ice on Earth is given as 520 Newtons. We can use the formula to solve for mass by rearranging it to solve for mass: mass = weight/acceleration due to gravity. Assuming the acceleration due to gravity on Earth is 9.8 m/s², we can calculate the mass as follows:
mass = 520 N / 9.8 m/s² = 53 kg
Therefore, the mass of the block of ice is 53 kg.
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