True of false all matter requires it’s own space

What is the efficiency of an engine that puts out 250 J of work for every 500 J of heat put into it?

Oliga [24]

If you put 300 J of heat into an engine with an efficiency of 0.35, how much work can be done? 3. How much energy must be put into an engine with an efficiency of 0.6 if 270 J of work are required? 4. An engine with an efficiency of 0.425 uses 1200 J of energy. Find the amount of energy wasted by the engine. 5. Calculate the efficiency of an engine operating between temperatures of 258 K and 600 K 6. An engine runs with its exhaust (cold) reservoir at a temperature of 200 K. To what temperature should the input (hot) temperature be set if an efficiency of 0.8 is desired? 7. Complete the following table of temperatures. Fahrenheit Celsius Kelvin 213 15 98.6 75 408

5 0

3 years ago

A jet aircraft is traveling at 262 m/s in horizontal flight. The engine takes in air at a rate of 85.9 kg/s and burns fuel at a

Fittoniya [83]

Answer:

$F_T=60132.52N$

$P=15814852.76W$

Explanation:

From the question we are told that

Velocity of aircraft $V=263m/s$

Engine air intake rate $\triangle M_a=85.9kg/s$

Fuel burn rate $\triangle M_f =3.92kg/s$

Velocity of exhaust gas $V_e =921m/s$

Generally the Mass change rate of Rocket is mathematically given by

$\triangle M = \triangle M_a+\triangle M_f$

$\triangle M= 85.9+3.92$

$\triangle M=89.82kg/s$

Generally the Trust of the rocket is given mathematically by

$F_T=(\triangle M *V_e)-(dM_a/dt)*(V)$

$F_T=(89.82 *921)-(85.9)*(263)$

$F_T=60132.52N$

Generally the Rocket's delivered power is mathematically given by

Delivered power P

$P=V*F_T$

$P=263*60132.52N$

$P=15814852.76W.$

8 0

3 years ago

15pts! brainliest to who answers!If Kyla picks up a grocery bag, using 10 N of force to lift it 1.5 m off the floor, how much wo

omeli [17]

Explanation:

work = force x distance

w = 10 x 1.5 = 15Nm

6 0

3 years ago

What do you think is the hardest problem for Divine Command Theory to overcome, and why?

erastova [34]

Explanation:

One problem with opting for number 1 in the above dilemma is that it becomes difficult if not impossible to conceive of God as morally good, because if the standards of moral goodness are set by God's commands, then the claim “God is morally good” is equivalent to “God obeys His own commands”.

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AND PLEASE MARK ME AS "BRAINLIEST" ANSWER 

HOPE IT HELPS YOU 

3 0

3 years ago

The brain tries to create one meaningful picture from many small parts. This reflects: A. Gestalt psychology B. Phi phenomenon C

Fudgin [204]

I think it B , I am not sure

8 0

3 years ago

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