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A sample of helium gas behaves as an ideal gas as energy is added by heat at constant pressure from 273K t 393K. If 20.0J of work is done by the gas during this process, what is the mass of the helium present?
a car is traveling up a hill that is inclined at an angle x above the horizontal determine the ratio of the magnitude of the normal force to the weight of the car when x=15degrees and x=35degrees
A 15-kg rock is dropped from rest on the earth and reaches the ground in 1.75 s. When it is
dropped from the same height on Saturn’s satellite Enceladus, it reaches the ground in 18.6 s.
(a) What is the acceleration due to gravity on Enceladus? (b) How long will it take for the
rock to reach the ground on Earth if it was released 100 m above the Earth’s surface? (c) in
Enceladus?
Illustration and solution required- please use the dorsal portion.
12-14. Two like charges of charge +10 nC are placed at the two corners of an equilateral triangle of sice 3cm. What is the magnitude of the total potential at the third corner?
15-17. A point charge q = 2.00μC is located at the origin. Find the electric potential due to this charge at point x = 4.0 m.
State and explain what happens to the alpha particle on entering the region of space with the uniform electric field?
From the knowledge that CV, the molar specific heat at constant volume, for a gas in a container is 5.0R, calculate the ratio of the speed of sound in that gas to the rms speed of the molecules,
for gas temperature T.
The temperature of a 0.700 kg cube of ice is decreased
to -150 C. Then energy is gradually transferred to the cube as
heat while it is otherwise thermally
isolated from its environment. The
total transfer is 0.6993 MJ. Assume
the value of c for ice given
is valid for temperatures from
-150 C to 0 C. What is the final
temperature of the water?
The electric field has a magnitude of 3.0 N/C at a distance of 60 cm from a point charge..What is the charge?
The tension in a string holding a solid block below the surface of a liquid (of density
greater than the block) is T0 when the container is at rest. When the container is given an upward acceleration of 0.250g, what multiple of T0 gives the tension in the string?
FIGURE 6 shows a 3.0 kg box sliding down with constant speed u = 1.2 ms-1 along a rough plank inclined at an angle 25o with the horizontal. Calculate the rate of work done by the frictional force on the block. (Given g = 9.81 ms-2)
