Answer:
Explanation:
From the given information:
At state 1:
Initial Quality
mass = 10.0 kg
At state 2:
Temperature
mass of the piston
area of the piston
Atmospheric pressure
Gravitational acceleration = 9.81 m/s²
, This is because there exists no restriction to the movement of the piston and provided the process is frictionless. So, the process 1-2 is regarded as constant.
To calculate the applying force balance over the piston by using force balance in the vertical direction:
∴
(100 × 10³)×0.005 + 204 × 9.31 = P × 0.05
P = 500248 Pa
P = 500.25 kPa
At state 1:
Hence, this is a saturated mixture of liquid and vapor
Using the steam tables at 500.25 kPa
∴
Specific volume at state 1 is given as:
volume at state 1 is given by:
Similarly, the specific internal energy is:
At state 2:
Using steam tables at P = 500.25 kPa and T = 320° C
∴
Answer:
A-18500J
B-232.5 rad/s
Explanation:
A- As the cylinder rotates through 1000rad, it sweeps a distance of
So the work, which is distance times force, of the tension done on the cylinder through that distance is
W = Td = 50 * 370 = 18500 J[/tex]
B- The torque that exerts on the cylinder by the tension is
To = TR = 50*0.37 = 18.5 Nm
As the cylinder is hollow, its moments of inertia is
The torque is generating an angular acceleration of:
The time it takes to go from rest to 1000 rad
Therefore the final rotational speed is
Answer:
Kinetic Energy is the energy an object has owing to its motion. In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.
Explanation:
hint
Answer:
6.7 kg
Explanation:
V = 5000 L = 5000 x 10^-3 m^3 = 5 m^3
T = 0.2 degree C = 273.2 K
P = 1.04 atm = 1.04 x 1.01 x 10^5 Pa = 1.0504 x 10^5 Pa
R = 8.314 in SI system of units
Use the ideal gas equation. Let n be the moles of air occupied in the lungs of whale.
P V = n R T
n = P V / R T
n = (1.0504 x 10^5 x 5) / (8.314 x 273.2) = 231.22
the mass of one mole of air is 28.98 g
So, the mass of 231.22 moles of air = 231.22 x 28.98 = 6700 .88 g = 6.7 kg
C is the correct answer.
all substances found on the periodic table are elements by definition. anything that is created using elements, such as methane, carbon dioxide, or water, are all compounds.