Answer:
B
Explanation:
Angular speed=velocity/radius
5/0.85=5.9
Answer:
Explanation:
The motion of Mary along the circular path is a centripetal.
As Mary moves from one edge of the circular platform to the other edge, she is covering a distance which is the radius of the circular path at a velocity.
According to the relationship
w = v/r where
w is the angular velocity
r is the radius
v is the linear velocity
Initially, before Mary starts, her linear speed is zero and her angular velocity is also zero. As she move towards the opposite edge, she is covering a distance of radius r. According to the formula, increase in radius will leads to decrease in her angular velocity and vice versa. As Mary starts moving towards the centre of the circular path, her angular velocity increases, at the centre of the platform, her angular velocity is at maximum at this point. As she moves further from the center to the other edge, her angular velocity decreases due to increase in distance covered across the circular path.
Answer:
C. Replacing one gas by another under the same conditions, has no effect on pressure.
Explanation:
Ideal gas:
A gas is treated as an ideal gas if temperature is high and pressure is low.
Kinetic energy for ideal gas given as
So when temperature of gas is increases then Average molecular kinetic energy will also increases.
The size of molecule is negligible as compare to the dimension of container. It mean that volume occupied by molecule is less as compare to the volume of container.
The between molecules is perfectly elastic.
Ideal gas equation
P V = m R T
So the option C is not always true.
The magnetic field on the sun is created by <u>flowing charged plasma</u> a liquid iron core flowing charged plasma friction iron in the solar wind.
Plasma, a gas-like state of matter in which electrons and ions have separated to produce a very hot mixture of charged particles, makes up the sun. Magnetic fields are naturally produced as charged particles move, and these fields have an additional impact on the motion of the particles.
Because the magnetic fields above the surface of the sun direct the travel of that plasma and cause the loops and towers of material in the corona to shine brilliantly in EUV photos, we can see the shape of the magnetic fields there.
Learn more about Magnetic field here-
brainly.com/question/23096032
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Pretty sure it is B.
Because inertia is a tendency to do nothing or remain unchanged.
