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
posledela
3 years ago
14

convert watts to hpThe headlights of a moving car draw about 9 A from the 12 V alternator, which is driven by the engine. Assume

the alternator is 85% efficient (its output electrical power is 85% of its input mechanical power), and calculate the horsepower the engine must supply to run the lights.
Physics
1 answer:
iVinArrow [24]3 years ago
4 0

Answer: 0.17hp

Explanation:

Power output = power input × 85%

Power output = power input × 0.85

Power input = IV/0.85

Power input = 9×12/0.85

Power input = 108/0.85

= 127.058 watts

Converting to horse power = 127.058W × 1horse power/745.7W

= 127.058 × 0.001341

= 0.17hp

You might be interested in
An aurora can be found in the _____.
Tomtit [17]
I believe the correct answer is d. thermosphere. 
7 0
3 years ago
Read 2 more answers
Need help please this is physics work
SashulF [63]

Answer:

the density of gasoline is about 0.7 kg per latest a URL 50 litre of gasoline to your car and when feeling it what is the mass of the same amount of gasoline 2144 to 86 kg answer

5 0
2 years ago
Help
aleksley [76]
A- sulfur oxide
B- carbon monoxide
6 0
3 years ago
Read 2 more answers
Electrical current is defined as
Dmitry_Shevchenko [17]

Explanation:

The flow of electrical charge per unit time

8 0
2 years ago
Which missing item would complete this beta decay reaction?
Flauer [41]
For us to understand the missing item that would complete beta decay reaction, we need to achieve in depth understanding of chemical formulas and nuclear symbols. Next is to have great comprehension of the following points:
<span>1.) Neutron in nucleus breaks down and changes into a proton.
2) Then it emits an electron, as well as an anti-neutrino which go into space.
3) Lastly, atomic number continuously goes UP while mass number remains unchanged.</span>
8 0
2 years ago
Other questions:
  • What is the kinetic energy of a 150 kg object that is moving at a speed of 15 m/s?
    9·1 answer
  • 45. A particle moves in a straight line with an initial velocity of 30 m/s and constant acceleration 30 m/s2 . (a) What is its d
    15·2 answers
  • Suppose a car approaches a hill and has an initial speed of
    10·1 answer
  • A train travels 600 km in one hour. What is the trains velocity in meters/second
    5·2 answers
  • A dog has a mass of 12 kg. What is its weight? Round your answer to the nearest whole number
    7·1 answer
  • A 0.5 kg block of aluminum (caluminum=900J/kg⋅∘C) is heated to 200∘C. The block is then quickly placed in an insulated tub of co
    15·1 answer
  • Your family is moving to a new home. While lifting a box 1.5 m straight up to put it on a truck, you exert an upward force of 20
    9·2 answers
  • Any Answer Would Be Appreciated
    6·1 answer
  • Describe the motion of an object as it accelerates. IN YOUR OWN WORD!! ASAP
    13·1 answer
  • An astronomical unit (A.U.) is 1 point A) a term for defining the luminosity of a star B) the average distance from the Earth to
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!