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EX 5:- 1 The molecular weight of carbon dioxide, CO2
, is 44. In an experiment the value
γ for CO
2 was found to be 1.3. Assuming that CO
2
is a perfect gas, calculate the gas
constant, R, and the specific heats at constant pressure and constant volume, Cp, Cv
(0.189 kJ/kg.K; 0.63kJ/kg.K; 0.819kJ/kg.K).
An electron moves in a straight line when moving through an electric field of 5000 Vim and a2T
magnetic field (the velocity, electric field, and magnetic field are all perpendicular to each other). If the
electric field is turned off, the electron will move in a circle with what radius
(b) Determine the angular velocity ω of the telescope as it orbits around the Sun.
The parallel combination of five cells, each with electromotive force of 1.5 V and internal resistance of 0.5 Ω, is connected to an external resistance of 5.0 Ω. Find the (a) terminal voltage of the battery, and (b) terminal voltage of a cell.
Given: n=5
E= 1.5 V
r= 0.5 Ω
R= 5.0 Ω
The parallel combination of five cells, each with electromotive force of 1.5 V and internal resistance of 0.5 Ω, is connected to an external resistance of 5.0 Ω. Find the (a) total resistance of the circuit, (b) electromotive force of the battery, (c) total resistance of the circuit, and (d) current through the external circuit.
Given: n=5
E= 1.5 V
r= 0.5 Ω
R= 5.0 Ω
1.The period of Planet X to orbit on a certain star is 15.382 years. Given this data, compute the distance from Planet X to the star in miles. (NOTE: 1 km = 0.621 mile).
There is a lead XY of the shape of a long straight line and a doubly-rolled circular lead whose center is O with radius 0.10 m. They are in the same plane and the distance between XY and O is 0.20 m. A current of 15.7 A is flowing in lead XY to the direction shown in the figure below. Set the circle ratio is 3.14. Find the strength of the magnetic field which the straight line current builds at the center O of the circle.
A turtle accelerates at a rate of 2 m/s2 for 15 s, starting from no motion. What is the turtle's final velocity?
7. A child uses a sled to slide down a very slippery, snowy slope. The sled has a mass of 80 kg and the child has a mass of 35 kg. The top of the slope is 4.0 m higher than the bottom and the sled is travelling at 4.0 m s−1 at the top. Assuming no work is done on the sled by the surface of the slope or the child, what is the speed of the sled (and child) at the bottom of the slope (in m s
A man which travels due north in order to cross a river 5km wide flowing due east at 3km per hour if he can roll at 10km per hour in still water
Find by calculation
The direction in which he must head his boat in order to get to his destination directly opposite his starting point
