Answer:
1110111010010110
Explanation:
I am not able to upload the working out using the sum of weights method sorry
Answer:
The weight of an object is the force on it caused by the gravity due to the planet. The weight of an object and the gravitational field strength are directly proportional. For a given mass, the greater the gravitational field strength of the planet, the greater its weight.
Weight can be calculated using the equation:
weight = mass × gravitational field strength
This is when:
weight (W) is measured in newtons (N)
mass (m) is measured in kilograms (kg)
gravitational field strength (g) is measured in newtons per kilogram (N/kg)
An alloy that contains mainly copper and tin is bronze
Solution:
Mass of liquid water and water vapor in the insulated tank initially = 1.4 kg
Temperature = 200 °C
And 25% of the volume by liquid water is steam.
State 1



(taking the value of
and
at 200°C )

Now quality of vapor


Internal energy at state 1 can be found out by


= 856.54 kJ/kg
After heating with the resistor for 20 minutes, at state 2, the tank contains saturated water vapor 
Tank is rigid, so volume of tank is constant.



Now interpolate the value to get temperature at state 2 with specific volume value to get final temperature

= 369.11° C
Internal energy at state 2

Now power rating of the resistor


= 1.51 kW
Assume theres no air reaistance. (or else the ball will oppose the motion of the ball, hence decrease the velocity increase)
see if there are any problems!