Answer:
4 seconds
Explanation:
The frequency of a body is the number of oscillations in one second. It is the number of cycles per unit time. The S.I unit of frequency is the Hertz (Hz).
The period of a body is the time taken to complete one oscillation. The period is inversely proportional to the frequency of the body. It is the reciprocal of frequency and the S.I unit is second (s).
A body oscillates with 25hz. Therefore the frequency (f) = 25 Hz.
The period (T) is given as:
Areas downwind of the lake would receive precipitation.
Mass defect is the difference of the mass of the constituent particles (protons and neutrons) of the actual mass of the nucleus. The mass of a nucleus is actually less than the mass of the protons and neutrons.
This is how you calculate it for this problem.
lithium - 7 => 3 protons and 4 neutrons
mass of 3 protons = 3 * 1.007276 amu = 3.021828 amu
mass of 4 neutrons = 4 * 1.008665 amu = 4.03466
=> mass of 3 protons + 4 neutrons = 3.021828 amu + 4.03466 amu = 7.056488
Mass defect = mass of 3 protons and 4 neutrons - atomic mass of lithium =
Mass defect = 7.056488 amu - 7.016003 amu = 0.040485 amu
λ = 3.125 m
λ = 2.83 m
<h3>Further explanation</h3>
Given
Frequency of radio : 96 MHz and 106 MHz
Required
The wavelength
Solution
Wavelength : from the crest to the crest of the next wave or the trough to the trough
Frequency (f): number of waves in one second
v = λ x f
λ = v : f
Input the value :
f = 96 MHz = 96 x 10⁶ Hz
λ = v : f
λ = 3 x 10⁸ : 96 x 10⁶
λ = 3.125 m
f = 106 MHz = 106 x 10⁶ Hz
λ = v : f
λ = 3 x 10⁸ : 106 x 10⁶
λ = 2.83 m
