Answer:
1.26
Explanation:
change 45 grams to kilograms which is 0.045 then just multiply it by 28 m/s
0.045x28=1.260
Answer:
779.87 N/m²
Explanation:
Pressure = Force (F) / Area (A)
Recall :
Force = ma ; mass * acceleration due to gravity
a = 9.8 m/s² ; mass = 0.4kg
Force, F = 0.4 * 9.8 = 3.92 N
Area = πr² ; r = Radius = 4cm = 4 / 100 = 0.04 m
Area = π0.04² = 0.0050265 m²
Hence,
Pressure = 3.92 / 0.0050265
Pressure = 779.86670 N/m²
Pressure = 779.87 N/m²
Answer:
The period of the harmonic vibration is inversely proportional to its frequency
Explanation:
The period of the simple harmonic vibration is actually the inverse of its frequency.
This means that, to get the period, all you have to do is divide "1" by the frequency, in other words:
period = 1/frequency
From this formula, we can note that as the frequency increases, the period decreases and vice versa.
Based on this, the relation between the period and the frequency is an inversely proportional relation.
Hope this helps :)
Answer:
B. closed series circuit because the resistors are one after the other and there is no open switch.
Explanation: