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
Citrus2011 [14]
3 years ago
9

If a car used 260.000 W of power to complete a race in 15 s. how much work did the car do?

Physics
1 answer:
marta [7]3 years ago
3 0

Work done by the car is 3900 J

Explanation:

  • Power and work are related by the equation, Power = Work Done/Time
  • Power is the rate at which work is done.
  • Here, the car uses power of 260 W and time taken is 15 s.

Work Done = Power × Time

                   = 260 × 15 = 3900 J

You might be interested in
A penny is placed on a rotating turntable. where on the turntable does the penny require the largest centripetal force to remain
Mama L [17]

m = mass of the penny

r = distance of the penny from the center of the turntable or axis of rotation

w = angular speed of rotation of turntable

F = centripetal force experienced by the penny

centripetal force "F" experienced by the penny of "m" at distance "r" from axis of rotation is given as

F = m r w²

in the above equation , mass of penny "m"  and angular speed "w" of the turntable is same at all places. hence the centripetal force directly depends on the radius .

hence greater the distance from center , greater will be the centripetal force to remain in place.  

So at the edge of the turntable , the penny experiences largest centripetal force to remain in place.

4 0
2 years ago
A man has a mass of 66 kg on the earth. What is his weight.
LUCKY_DIMON [66]
Since force = mass X acceleration, then the force he excerts on the earth (aka his weight) equals his mass times the force of gravity.

Therefore
W = (66 kg) X (9.8 m/ss)
W = 646.8 kgm/ss

kg m/ss are also known as Newtons, so your answer is...

646.8 N
8 0
2 years ago
Why is an earthworm an invertebrate?
zimovet [89]

Earthworm have bones Some children confuse earthworms, which are invertebrates and have no bones, with snakes which are vertebrates and do have a bony skeleton and many ribs.

8 0
3 years ago
Read 2 more answers
If a 25 kg lawnmower produces 347 w and does 9514 J of work, for
Igoryamba

Steps 1 and 2)

The variables are W = work, P = power, and t = time. In this case, W = 9514 joules and P = 347 watts.

The goal is to solve for the unknown time t.

-----------------------

Step 3)

Since we want to solve for the time, and we have known W and P values, we use the equation t = W/P

-----------------------

Step 4)

t = W/P

t = 9514/347

t = 27.4178674351586

t = 27.4 seconds

-----------------------

Step 5)

The lawn mower ran for about 27.4 seconds. I rounded to three sig figs because this was the lower amount of sig figs when comparing 9514 and 347.

-----------------------

Note: we don't use the mass at all

6 0
3 years ago
How would you describe a fossil that was discovered in a rock at the base of a cliff to a fossil in a rock found at the top of a
ArbitrLikvidat [17]
The one at the base would be much older due to the law of super position, and the rock at the top would be much newer,again, due to the law of super position.
7 0
2 years ago
Other questions:
  • An emf source of 6.0V is connected to a purely resistive lamp and a current of 2.0 amperes flows. All the wires are resistance-f
    14·1 answer
  • Kevin draws a figure that has 4 sides all sides have the same length his figure has no right angels what figure does he draw
    6·1 answer
  • Why does the density of a substance remain the same for different amount of the substance
    11·1 answer
  • Which of the following equations represents Ohm’s Law? Select all that apply.
    6·2 answers
  • The amount of energy absorbed by a vehicle in an impact is related to __________ A. the direction of the impact. B. the design o
    11·2 answers
  • Water has a mass per mole of 18.0 g/mol, and each water molecule (H20) has 10 electrons. (a) How many electrons are there in one
    13·1 answer
  • An outfielder with a mass of 86 Kilograms catches a baseball with a mass of 0.15 kilograms.The velocity of the ball just before
    10·1 answer
  • Energy and work are measured in
    14·2 answers
  • The car travels 25 miles in the first 0.5 hours
    15·1 answer
  • Why is it easier to open a door by holding it from it's edge​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!