A satellite, moving in an elliptical orbit, is 368 km above Earth's surface at its farthest point and 164 km above at its closes
1 answer:
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Answer:
v =4.36 m/s
Explanation:
given,
mass of object A = 18.5 Kg
initial velocity of object A = 8.15 m/s in east
mass of object B = 30.5 kg
initial velocity of object B = 5 m/s
P = 214. 45 N s
velocity after collision is equal to
v =4.36 m/s
hence, velocity after collision is equal to 4.36 m/s
Answer:
The temperature of silver at this given resistivity is 2971.1 ⁰C
Explanation:
The resistivity of silver is calculated as follows;
where;
Rt is the resistivity of silver at the given temperature
Ro is the resistivity of silver at room temperature
α is the temperature coefficient of resistance
To is the room temperature
T is the temperature at which the resistivity of silver will be two times the resistivity of iron at room temperature
Resistivity of iron at room temperature = 9.71 x 10⁻⁸ ohm.m
When silver's resistivity becomes 2 times the resistivity of iron, we will have the following equations;
Therefore, the temperature of silver at this given resistivity is 2971.1 ⁰C
Answer:
Part a: <em>The total amount of energy transfer by the work done is 54.81 kJ.</em>
Part b: <em>The total amount of energy transfer by the heat is 54.81 kJ</em>
Explanation:
Mass of Carbon Dioxide is given as m1=3 kg
Pressure is given as P1=3 bar =300 kPA
Volume is given as V1=0.5 m^3
Pressure in tank 2 is given as P2=2 bar=200 kPa
T=290 K
Now the Molecular weight of is given as
M=44 kg/kmol
the gas constant is given as
Volume of the tank is given as
Final mass is given as
Mass of the CO2 moved to the cylinder
The initial mass in the cylinder is given as
The mass after the process is
Now the volume 2 of the cylinder is given as
Part a:
So the Work done is given as
<em>The total amount of energy transfer by the work done is 54.81 kJ.</em>
Part b:
The total energy transfer by heat is given as
As the temperature is constant thus change in internal energy is 0.
<em>The total amount of energy transfer by the heat is 54.81 kJ</em>