Answer:
<h2>50 km/hr</h2>Explanation:
The average speed of the car can be found by using the formula
d is the distance
t is the time taken
From the question we have
We have the final answer as
<h3>50 km/hr</h3>Hope this helps you
How is a refracting telescope similar to a compound microscope?
2 answers:
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Answer:d
Explanation:
Drift velocity is given by
where =drift velocity
I=Current
n=no of electron
Q=charge of Electron
A=cross-section
If area of cross-section decreases gradually then drift velocity will increase because drift velocity is inversely proportional to Area of cross-section
Answer:
a)V= 0.0827 m³
b)P=181.11 x 10² N/m²
Explanation:
Given that
m = 81.5 kg
Density ,ρ = 985 kg/m³
As we know that
Mass = Volume x Density
81.5 = V x 985
V= 0.0827 m³
The force exerted by weight = m g
F= m g= 81.5 x 10 = 815 N ( Take ,g= 10 m/s²)
Area ,A= 4.5 x 10⁻² m²
The Pressure P
P=181.11 x 10² N/m²