Explanation:
Given that,
Initial volume of tank, V = 6 L
Initial pressure, P = 2 atm
We need to find the final pressure when the air is placed in tanks that have the following volumes if there is no change in temperature and amount of gas:
(a) V' = 1 L
It is a case of Boyle's law. It says that volume is inversely proportional to the pressure at constant temperature. So,
(b) V' = 2500 mL
New pressure becomes :
(c) V' = 750 mL
New pressure becomes :
(d) V' = 8 L
New pressure becomes :
Hence, this is the required solution.
Answer:
The magnitude of the resultant acceleration is 2.2 
Explanation:
Mass (m) of the sailboat = 2000 kg
Force acting on the sailboat due to ocean tide is 
= 3000N
Eastwards means takes place along the positive x direction
Then
= 3000N and 
= 0
Wind Force acting on the Sailboat is
= 6000N directed towards the northwest that means at an angle 45 degree above the negative x axis
Then
= -(6000N) cos 45 degree = -4242.6 N
= (6000N) cos 45 degree = 4242.6 N
Hence , the net force acting on the sailboat in x direction is
= - 3000 N + 4242.6 N
= - 3000 N +4242.6 N
= 1242.6N
Net Force acting on the sailboat in y direction is
= 0+ 4242.6N
= 4242.6N
The magnitude of the resultant force =
Using pythagorean theorm of 1243 N and 4243 N
4420.8 N
F = ma
=2.2
Answer:
The banking angle of the road is 16.38 degrees.
Explanation:
Given:
Radius of the roadway on curve, R = 50 m
velocity of the moving car, V = 12 m/s
The banking angle can be calculated by using the formula below:
If there's no frictional force, then net force is equal to centripetal force.
MgTanΦ = (MV^2)/ R
TanΦ = V^2 / gR
Where;
Φ is the banking angle
g is acceleration due to gravity
TanΦ = (12 x 12) / (9.8 x 50)
TanΦ = 0.2939
Φ = arctan (0.2939)
Φ = 16.38 degrees
Therefore, the banking angle of the road is 16.38 degrees.
The first part of the question is 3,100 V.
The second part of the question is 200 V.
Answer:
Correct answer is
- Pseudoscience is often based only on opinions.
- Pseudoscience often involves explanations of beliefs.
- Pseudoscience includes subjective ideas.
Explanation:
pseudoscience is a combination of two words pseudo(spurious or not genuine) and science. As the name pseudoscience indicate that its not genuine science or its fake science. pseudoscience is based on practices or opinions which are believed to be based on scientific method but actually these practices are not based on scientific method and these opinions or ideas cannot be proved by a scientific method.Pseudoscience often involves explanations of beliefs. Pseudoscience includes subjective ideas therefore it never changes.
for example astrology is pseudoscience because it is not based on scientific method but astronomy is a science because it is based on scientific method.
