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
taurus [48]
4 years ago
15

If an automobile engine delivers a power of 50.0 hp, how much time will it take for the engine to do 6.40 x 10^4 j of work? (1 h

p= 746 W)
Physics
1 answer:
aleksandrvk [35]4 years ago
7 0

Given data

Power (P) = 50 hp,

                = 50 × 746,  we know that 1 hp = 746 W.

                = 37300 Watts      (Watt = J/s)  

Work  = 6.40 ×10⁴ J

Power is defined as rate of doing work and the unit of power is<em> Watt.</em>

Mathematically,

         Power = (Work / time)   Watts

                     = 6.40 ×10⁴ / time

          37300 W = 6.40 ×10⁴ J /time      (Where time in seconds)

         => time = Work/Power

                      = 6.40 ×10⁴/37300

                      = <em>1.74 seconds  </em>

<em>  </em><em>Therefore , the engine need 1.74 seconds to do 6.40 6.40 ×10⁴ J of work </em>

<em> </em>


You might be interested in
__________energy might also be released during a chemical reaction
pentagon [3]
Kinetic energy i think
7 0
3 years ago
two masses are separated by 1 m. suppose the masses are moved so they are 2 m apart how will the gravitational force change
Verdich [7]
The gravitational force would get stronger because the farther the two masses are separated the more gravitational force will be used to pull them together the closer they are the less gravitational pull is used to pull them together
5 0
3 years ago
Which EM wave is about the size of humans?
shutvik [7]
The Electromagnetic ave that is about the size of humans is : A typical micro waves have around 14 inches ( 1.1 meter) in height.
This is very similar to the height of human right before we hit puberty (around 9 - 10 years old)

8 0
3 years ago
Define: New Moon, Full Moon, Waxing phases and Waning phases.
Nutka1998 [239]
Full moon: All of the moon or sun appears covers by the shadow.
When the moon is waxing, it means that the lit part is getting larger (going towards a full moon)
When the moon is waning , it means that the lit part is getting smaller (going towards a new moon)
The new moon represents the start of a new lunar cycle and occurs approximately every 29 days.

Hope that help:)
5 0
3 years ago
Which of the following air conditions would be least likely to have precipitation?
Lynna [10]
The best and most correct answer among the choices provided by the question is the first choice "warm, dry air"


In meteorology, precipitation<span> is any product of the condensation of atmospheric water vapor that falls under gravity. The main forms of </span>precipitation<span> include drizzle, rain, sleet, snow, graupel and hail.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
7 0
3 years ago
Read 2 more answers
Other questions:
  • A photon ionizes a hydrogen atom from the ground state. The liberated electron 11. recombines with a proton into the first excit
    5·1 answer
  • Which particle of the atom has a positive charge? A. proton B. electron C. nucleus D. neutron
    12·1 answer
  • The table below shows the difference between the average temperatures in April and October in four locations.
    12·1 answer
  • What scientific breakthrough did Charles Darwin conclusion lead to? ANSSER ASAP PLZ
    12·1 answer
  • Helpppp pleaseeeee helppp fast
    10·1 answer
  • The repulsive force between two protons has a magnitude of 2.00 N. What is the distance between them?
    7·2 answers
  • Before railroad were invented, goods often traveled along canals, with mules pulling barges from the bank. If a mule is exerting
    7·1 answer
  • In a digital multimeter, what changes inside the meter when you push the button to change from 200v range to the 20v range? by w
    7·1 answer
  • A crane lifts a 400 N crate full of baked beans 15 m. How much work was done by the crane?
    5·1 answer
  • Is this a balanced equation? 6O2+ C6H12O6---&gt; 6 CO2 + 6H2O <br><br> ]
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!