Answer:
Explanation:
k = Boltzmann constant =
r = Radius of gas molecule =
t = Temperature = 300 K
P = Pressure
Volume of gas per molecule is given by
From the ideal gas law we have
The pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior is
The angular velocity of the cockroach does not change as long as it rotates with the disk it has the same angular velocity as the disk but by changing the distance from the center of the disk the linear velocity changes (V=r×ω) because the radius changes.
in order to find the kinetic energy you can use this formula k=1/2 × m × V²
so k/k0 = (V/V0)² = (r/r0)²
where the subscripts 0 denotes to the initial position of the cockroach so r0=2×r then we have k/k0=1/4
Acceleration = (change in speed) / (time for the change)
Acceleration = (220 m/s) / (20 sec)
<em>Acceleration = 11 m/s²</em>
<u>Answer:</u> The given statement is True
<u>Explanation:</u>
A uniform motion is defined as the motion where an object is moving at a constant speed.
A non-uniform motion is defined as the motion where an object keeps changing its position and does not move at a constant speed.
We are given:
A car takes a full round of journey in a roundabout with constant speed
As the speed remains constant in a circular path, it is considered a uniform motion.
Hence, the given statement is True
Answer:F=11.76 kN
Explanation:
Given
mass of rocket
Force F is applied up to a height of 100 m then it is shut off
final velocity v up to which force is applied is given by
After this rocket continues to move to a maximum height under the action of gravity
using
thus Force is