Answer:
Density is directly proportional to pressure
Explanation:
As pressure increases (with constant temperature), density also increases.
Density is inversely proportional to temperature.
Answer:
The current needed to transmit Power of 4 W is 28.47 A
Solution:
As per the question:
Length of the antenna,
Frequency,
Power transmitted,
Now,
For a monopole antenna:
where
= wavelength transmitted by the antenna
c = speed of light in vacuum
Now,
Since, the value of >> thus the monopole is a Hertian monopole.
The resistance is calculated as:
Now, the current I is given by:
<h2>
a) Force would be required to cause the same acceleration on a car of mass 3300 kg is 12229.41 N to the east.</h2><h2>b)
Distance traveled before stopping is 54.45 m
</h2>
Explanation:
a) Force = 8820 N
Mass = 2380 kg
We have
Force = Mass x Acceleration
-8820 = 2380 x a
a = -3.71 m/s²
Now the mass is 3300 kg
Force = Mass x Acceleration
F = 3300 x -3.71 = -12229.41 N
Force would be required to cause the same acceleration on a car of mass 3300 kg is 12229.41 N to the east.
b) We have equation of motion v² = u² + 2as
Initial velocity, u = 20.1 m/s
Acceleration, a = -3.71 m/s²
Final velocity, v = 0 m/s
Substituting
v² = u² + 2as
0² = 20.1² + 2 x -3.71 x s
s = 54.45 m
Distance traveled before stopping is 54.45 m
Answer:
Explanation:
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