Answer:
Wavelength = 3.74 m
Explanation:
In order to find wavelength in "metres", we must first convert megahertz to hertz.
1 MHz = 1 × 10⁶ Hz
80.3 Mhz = <em>x</em>
<em>x </em>= 80.3 × 1 × 10⁶ = 8.03 × 10⁷ Hz
The formula between wave speed, frequency and wavelength is:
v = fλ [where v is wave speed, f is frequency and λ is wavelength]
Reorganise the equation and make λ the subject.
λ = v ÷ f
λ = (3 × 10⁸) ÷ (8.03 × 10⁷)
λ = 3.74 m [rounded to 3 significant figures]
Answer:
Ос.
The spacing between particles increases.
Heat causes greater particle activity, and the particles
are farther apart.
Answer:
the density of indium is 7.2 g/cm^3
Explanation:
The computation of the density of indium is shown below:
Given that
Mass = 16.6 g
Volume = 48.6 c,^3 - 46.3cm^3 = 2.3 cm^3
Based on the above information
As we know that
Density = mass ÷ volume
So,
= 16.6g ÷ 2.3 cm^3
= 7.2 g/cm^3
hence, the density of indium is 7.2 g/cm^3
We simply applied the above formula so that the correct value could come
And, the same is to be considered
The forces of gravity between two objects are smaller when the objects are farther apart.
Answer:
|X| = 72 cm
Explanation:
We need to find the magnitude of vector X.
Vector Y = 21 cm
Vector Z = 75 cm
We know that, the magnitude of resultant vector is given by :
So, the value of magnitude of vector X is 72 cm
