Answer:
the answer is B. Alpha particles, beta particles, and gamma rays
Explanation:
a p e x , i just took the quiz
Answer:
50
Explanation:
Use the Pythagorean theorem to find the length of the diagonal, or the hypotenuse of an imaginary triangle. 30^2 + 40^2 = 2500, which is 50^2. So, the magnitude is 50.
Brainliest, please :)
- (a) Maximum emf: 90 V (2 sig. fig.)
- (b) Emf at π/32 s: 85 V.
- (c) t = 0.125 s.
<h3>Explanation</h3><h3>(a)</h3>
The maximum emf in the coil depends on
- the maximum flux linkage through the coil, and
- the angular velocity of the coil.
Maximum flux linkage in the coil:
.
Frequency of the rotation:
.
Angular velocity of the coil:
.
Maximum emf in the coil:
.
<h3>(b)</h3>
Emf varies over time. The trend of change in emf over time resembles the shape of either a sine wave or a cosine wave since the coil rotates at a constant angular speed. The question states that emf is "zero at t = 0." As a result, a sine wave will be the most appropriate here since .
.
Make sure that your calculator is in the radian mode.
.
<h3>(c)</h3>
Consider the shape of a sine wave. The value of varies between -1 and 1 as the value of changes. The value of at time depends on the value of .
reaches its first maximum for when what's inside the sine function is equal to .
In other words, the first maximum emf occurs when
,
where
,
and
.
.
Answer:
D.Radiography uses ionizing radiation, but sonography does not.
Explanation:
Radiography is the process of using x-rays or gamma rays to capture images showing internal parts of the human body for medical examinations.X-rays are commonly used in this process.x-rays are categorized as a cancer causing agent thus exposure to such rays could cause development of cancer.In sonography, high frequency sound waves are used. There is no exposure to any ionization radiation like in radiography.
Answer:
The correct answer is C , because it increases and decreases
Explanation: