Homework Statement
A sealed container of volume 0.15 m^3 holds a sample of 5 × 10^1000 atoms of neon gas in equilibrium. The distribution of speeds of the neon atoms shows a peak at 2000 m s^−1.
(i) Calculate the temperature and pressure of the neon gas. (6 marks)
(ii) What is the...
Homework Statement
Describe the energy conversions of a device which is on a spring which is compressed then released and then spring bresks the device bounces up in the air.
Homework Equations
ignore air resistantance
The Attempt at a Solution
The device goes from strain energy...
Homework Statement
a ball moves at 5000 rpm (revolutions per minute). Their radius is 4 cm.
(i)Determine the angular speed in radians per second.
(ii) Find the period of rotation
(iii) Find the linear speed of a point on the outer ball
(iv) Find the linear acceleration of a point on...
4.Use the answers to parts (1) and (3) to calculate the magnitude and direction
of the ball’s initial velocity and of its velocity at the highest point.
answer to part (1) and (3)
ucosθ=24.3 m/s
usinθ =28.34 m/s
magnitude=√((24.3)&^2 + (28.34)^2 =
=√(590.49 + 803.16) = 37.33 m/s
tanθ =...
3.Hence find the horizontal component of the ball’s initial velocity
U=U sinθ
a=0
s=70 (correction)
v=0
t=2.47 seconds
s=ut+(1/2)a(t)(t)
70=U sinθ (2.47) + 0
70/2.47 = usinθ =28.34 m/s (so this is the solution for part 3)
4.Use the answers to parts (1) and (3) to calculate the magnitude and direction
of the ball’s initial velocity and of its velocity at the highest point.
answer to part (1) and (3)
ucosθ=24.3 m/s
usinθ =12.146 m/s
magnitude=√((24.3)&^2 + (12.146)^2 =
=√(590.49 + 147.53) = 27.16 m/s
tanθ =...