Density is equal to mass divided by volume, so the density of the object is 10/2.5= 4<span> g/cm</span>
Answer:
The linear velocity of the racquet at the point of contact with the ball is 6 m/s.
Explanation:
Given;
angular velocity of the racquet, ω = 12 rad/s
distance of strike, r = 0.5 m
The linear velocity of the racquet at the point of contact is given by;
V = ωr
V = (12)(0.5)
V = 6 m/s
Therefore, linear velocity of the racquet at the point of contact with the ball is 6 m/s.
Answer:
C would make the most sense.
Explanation:
ok so basically the reason why i chose C is because i've always been told that whatever i type, send, or receive on my phone is stored into the phone's memory and can be brought back up with keystrokes. so yeah, i'd go with C but it's DEFINATELY not A or D.
To solve this problem it is necessary to apply the concepts of heat change and thermal efficiency.
The heat rate can be expressed under the function
Where,
m = Mass
Enthalpy at each state
Our values are given as,
From the tables of Enthalpy of Water at 200°C (Saturated liquid state)
At the same time for 80°C
Applying the equation of Heat,
Replacing,
Therefore the efficiency would be
Therefore the actual thermal efficiency of the turbine in percent is 0.0579.