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
wariber [46]
3 years ago
8

How much work output can a 150hp snowmobile do in 15 seconds if it is 18 % efficiency?

Physics
1 answer:
Sav [38]3 years ago
3 0

The work output is 3.02\cdot 10^5 J

Explanation:

The power of the snowmobile is

P=150 hp

Keeping in mind that

1 hp = 746 W

We can convert it into Watts:

P=(150)(746)=111,900 W

The energy used by the snowmobile can be found as follows:

E=Pt

where

P = 111,900 W is the power used

t = 15 s is the time interval

Substituting,

E=(111,900)(15)=1.68\cdot 10^6 J

However, the snowmobile is 18% efficient: this means that only 18% of this energy is converted into useful work. Therefore, the work output is

W=0.18E=(0.18)(1.68\cdot 10^6)=3.02\cdot 10^5 J

Learn more about power and work:

brainly.com/question/7956557

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

You might be interested in
Which of the following colors are part of the visible spectrum?
Rudik [331]

Answer: the answer is D

Explanation: I just know

3 0
3 years ago
Read 2 more answers
The practice of science can answer only scientific questions. And scientific questions guide the design of investigations. What
meriva

The scientific question can be supported by evidence that must be true of the possible answers to a scientific question. Option D is correct,

<h3>What is a Scientific hypothesis?</h3>

A scientific hypothesis must meet two criteria, A scientific hypothesis must be testable, and a scientific hypothesis must be falsifiable The basic idea of a hypothesis is that there is no predetermined outcome.

For a solution to be termed a scientific hypothesis, it has to be an idea that can be supported or refuted through carefully crafted experimentation or observation.

Only scientific questions may be answered by scientific activity. The design of the research is also influenced by scientific issues.

The scientific question can be supported by evidence that must be true of the possible answers to a scientific question.

They are accurate regarding the scientific question and can be substantiated by proof.

​

Hence option D is correct.

To learn more about the hypotheses refer to the link ;

https://brainly.in/question/1769011

#SPJ1

6 0
2 years ago
An empty 2,500 kg train car is headed northbound at a velocity of 5 m/s. Ahead of the first car, an empty 1,500 kg car is headed
Tema [17]

Let the mass of 2500 kg car be m_1 and it's velocity be v_1 and the mass of 1500 kg car be m_2 and it's velocity be v_2 .

After the bumping the mass be M and it's velocity be V.

     By law of conservation of momentum we have

                   m_1v_1+m_2v_2 = MV

                    2500 * 5 + 1500 * 1=4000 * V

                    V = 14000/4000 = 7/2 = 3.5 m/s

So the velocity of the two-car train = 3.5 m/s

9 0
3 years ago
A worker drives a 0.562 kg spike into a rail tie with a 2.26 kg sledgehammer. The hammer hits the spike with a speed of 64.4 m/s
zubka84 [21]

Answer:

Explanation:

Given that,

Mass of sledge hammer;

Mh =2.26 kg

Hammer speed;

Vh = 64.4 m/s

The expression fot the kinetic energy of the hammer is,

K.E(hammer) = ½Mh•Vh²

K.E(hammer) = ½ × 2.26 × 64.4²

K.E ( hammer) = 4686.52 J

If one forth of the kinetic energy is converted into internal energy, then

ΔU = ¼ × K.E(hammer)

∆U = ¼ × 4686.52

∆U = 1171.63 J

Thus, the increase in total internal energy will be 1171.63 J.

4 0
3 years ago
Need help!
tatuchka [14]
الجواب هو الأول الجواب هو الأول
5 0
2 years ago
Other questions:
  • Which if these events happens first in earths polar regions
    9·1 answer
  • The motions of the toy robot shown above are driven by an electric motor. The power source for the toy's motor is a pair of batt
    15·2 answers
  • With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s. What is its angular acceleration in rad/s2
    11·1 answer
  • The light beacon of a lighthouse is situated a distance 2.00 km from a long, straight shoreline (shortest distance to the shorel
    13·1 answer
  • A machine uses a force of 200 newtons to do 20,000 joules of work in 20 seconds. Find the distance the object moved and the powe
    13·1 answer
  • A very long insulating cylinder of charge of radius 2.60 cm carries a uniform linear density of 15.0 nC/m . Part A If you put on
    10·1 answer
  • Nora tied a string around a tennis ball, and then she swung it in a circle in front of her to demonstrate a planet orbiting the
    11·2 answers
  • Compare and contrast mechanical<br> solidarity and organic solidarity.
    5·1 answer
  • H.e.y w.h.o w.a.nt.s t.o t.a.l.k
    5·2 answers
  • 31. If Earth's mass was cut in half, your weight<br> would
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!