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
puteri [66]
3 years ago
14

A cart is pushed on a frictionless floor with 29.6 Newtons of force along a distance of 5.9 meters in 8.1 seconds. How much powe

r is exerted
during this time period?
Physics
1 answer:
marta [7]3 years ago
8 0

Answer:

Power = 21.6 Watts

Explanation:

Power = \frac{W}{t}

Where W = work and t = time.

W = Fs

Where F is force and s is displacement.

29.6N(5.9m) = 174.64J

W = 174.64J

Power = \frac{174.64J}{8.1s}

Power = 21.6 Watts

You might be interested in
Light travels fastest when moving through
vitfil [10]
A vaccum unlike sound,light can travel through any matter including a great vacuum of nothing (space) 
4 0
2 years ago
An aircraft travels 1000. km west and then travels 500. km west. what is its total displacement?
UkoKoshka [18]
1000-500=500 km. to the west.
5 0
3 years ago
The driver of a car travels at 90 km / h, observes some children playing on the road 50 m away, and applies the brakes, managing
Orlov [11]

Answer:

13,750 N

Yes

Explanation:

Given:

v₀ = 90 km/h = 25 m/s

v = 0 m/s

t = 4 s

Find: a and Δx

a = Δv / Δt

a = (0 m/s − 25 m/s) / (4 s)

a = -6.25 m/s²

F = ma

F = (2200 kg) (-6.25 m/s²)

F = -13,750 N

Δx = ½ (v + v₀) t

Δx = ½ (0 m/s + 25 m/s) (4 s)

Δx = 50 m

6 0
3 years ago
A 400 gram sample of alcohol at 10o C [Ca=2.64 J/g*oC] is mixed with 400 grams of warm water [Cw=4.186 J/g*Co] at 88o C. Assume
alukav5142 [94]
The heat lost by the water will be equivalent to the energy gained by the alcohol. Thus:
maCaΔT = -mwCwΔT
400 x 2.64 x (T - 10) = 400 x 4.186 x (88 - T)
T = 57.8 °C
8 0
3 years ago
Which terrestrial planet exhibits retrograde rotation?.
Sati [7]

Answer:

Planets that are farther from the sun than the earth (all but Mercury and Venus) will exhibit retrograde motion.

If the position of the planet is observed relative to the background stars, the planet will appear to move backward relative to the stars when the earth is moving in an Eastward direction faster than the planet, and the planet appears to move backwards relative to the stars

(The planet will be on the side of the earth that is opposite that of the sun)

3 0
2 years ago
Other questions:
  • You have a meter stick marked to the nearest millimeter. Which of these measurements is written with the correct amount of preci
    5·2 answers
  • What are the properties of transverse waves in physics
    11·2 answers
  • What is transferred by a force moving an object through a distance?
    5·2 answers
  • Albert observes that Emmy's watch is ticking eanwhile, Emmy observes Albert's watch and compares it with her watch. Emmy observe
    6·1 answer
  • PLS HELP ASAP!!!
    11·2 answers
  • As important as it is to plan ahead,sometimes you
    9·2 answers
  • If a neutral metal comb is held near an object with a negative charge the comb will become charged by?
    6·1 answer
  • When an object is stationary, all of the forces acting on it are balanced
    14·2 answers
  • Explain the process of radioactive decay what happens during radioactive decay what is the result at the end of radioactive deca
    7·1 answer
  • The current in a resistor is 2.0 A, and its power is 78 W. What is the voltage?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!