1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
daser333 [38]
3 years ago
6

One of the most efficient heat engines ever built is a coal-fired steam turbine in the Ohio River valley, operating between 1 87

0°C and 430°C.
(a) What is its maximum theoretical efficiency? %

(b) The actual efficiency of the engine is 42.0%. How much mechanical power does the engine deliver if it absorbs 1.30 105 J of energy each second from its hot reservoir?
Physics
1 answer:
k0ka [10]3 years ago
5 0

Answer:The answer

Explanation:

You might be interested in
__________ (marketing research) information is collected from questions (measurements) that are free from systematic or statisti
tatiyna

Answer: reliable

Explanation:

Reliable (marketing research) information is collected from questions (measurements) that are free from systematic or statistical error. An absence of systematic error implies that the respondents (i.e., the sampled people) who answer questions actually understand what the questions were asking.

3 0
3 years ago
Based on the law of conversation of energy how can we reasonably improve a machines ability to do work?
tensa zangetsu [6.8K]
MARK ME BRAINLIEST!!

your answer should be “C”.
4 0
3 years ago
How can a dictatorship best be classified
telo118 [61]

think of north korea the people are controlled by the leader

3 0
3 years ago
A car (mass = 1090 kg) is traveling at 30.4 m/s when it collides head-on with a sport utility vehicle (mass = 2880 kg) traveling
Thepotemich [5.8K]

Answer:

The sport utility vehicle was traveling at V2= 11.5 m/s.

Explanation:

m1= 1090 kg

V1= 30.4 m/s

m2= 2880 kg

V2= ?

m1*V1 = m2*V2

V2= (m1*V1)/m2

V2= 11.5 m/s

7 0
3 years ago
The circuits, P and Q, show two different ammeter-voltmeter methods of measuring resistance. Suppose the ammeter has a resistanc
qaws [65]

Answer:

Uncorrected values for

For circuit P

R = 2.4 ohm

For circuit Q

R = 2.4 ohm

Corrected values

for circuit P

R = 12 OHM

For circuit Q

R = 2.3 ohm

Explanation:

Given data:

Ammeter resistance 0.10 ohms

Resister resistance 3.0 ohms

Voltmeter read 6 volts

ammeter reads 2.5 amp

UNCORRECTED VALUES FOR

1) circuit P

we know that IR =V

R = \frac{6}{2.5} - 2.4 ohm

2) circuit Q

R = 2.4 ohm as no potential drop across ammeter

CORRECTED VALUES FOR

1) circuit p

IR = V

\frac{3R}{R+3} \times 2.5 = 6

R= 12 ohm

2) circuit Q

I\times (R+0.1) =V

R+0.1 =\frac{6}{2.5}

R = 2.3 ohm

5 0
3 years ago
Other questions:
  • Earth receives energy from the sun through what method of heat transfer?
    12·2 answers
  • PHYSICAL SCIENCE : What are the advantages and disadvantages of using nuclear energy to generate electricity?
    7·1 answer
  • ____ is rate of change of position.
    6·2 answers
  • The number of waves produced in a given time is the ____ of the wave
    9·1 answer
  • An iron cannon ball and a bowling ball are dropped at the same time from the top of a building. At the instant before the balls
    6·1 answer
  • A ball is thrown straight up into the air with an initial speed of 8.0 m/s. How long does it take for the rocket to reach its hi
    11·2 answers
  • 3. Una cuerda de guitarra tiene 60 cm de longitud y una masa de 0.05 kg de masa. Si se tensiona mediante una fuerza de 20 N. La
    12·1 answer
  • A microwave oven uses a current of 0.45 Amps in a voltage of 120 Volts how much power does a microwave use?
    12·1 answer
  • What force pulls all objects with mass toward<br> one another?
    11·1 answer
  • When current first leaves the battery, how much voltage does it have
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!