The number of protons an element has is its atomic number so the atomic number would be 29
distance(d) = speed(s) × time (t)
= 22.3 × 8.5
= 189.55m
Answer:0.3meters
Explanation:
wavelength=velocity ➗ frequency
wavelength=300.80 ➗ 1030.80
Wavelength=0.3m
Pressure is defined as the force per unit area. This measurement is more convenient to use for describing a force exerted. The standard unit for pressure is Pascal. For this problem, force is the gravitational pull from the block. Calculations are as follows:
P = F/A where F = mg
F = 7.5 ( 9.81) = 73.6 N
<span>P = 73.6 N / 0.6 m^2 = </span><span>122.5 Pa
Thus, the answer is D.</span>
Question :-
- A Body is Pivoted at a Point. A Force of 10 N is Applied at a Distance of 30 cm from the Pivot. Find the Amount of Force about the Pivot.
Answer :-
- Amount of Force is 3 Nm .
Explanation :-
As per the provided information in the given question, The Force is given as 10 Newton . The Distance is given as 30 cm [ 0.3 m ] . And, we have been asked to calculate the Amount of Force .
For calculating the Force , we will use the Formula :-

Therefore , by Substituting the given values in the above Formula :-



Hence :-
- Amount of Force = 0.3 Nm .
