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
fenix001 [56]
3 years ago
7

an 80kg mountaineer climbs a 3000m mountain in 10h. What is the average power output during the climb

Physics
1 answer:
inn [45]3 years ago
6 0

Answer:

70 W

Explanation:

Power = work / time

P = mgh / t

P = (80 kg) (9.8 m/s²) (3000 m) / (36000 s)

P = 65.3 W

Rounding to one significant figure, the average power output is 70 W.

You might be interested in
Light travels at 3 × 108 m/s, and it takes about 8 min for light from the sun to travel to Earth. Based on this, the order of ma
N76 [4]

Answer:

The order of magnitude of the distance from the sun to Earth is 10⁸ km.

Explanation:

The order of magnitude of the distance from the sun to Earth can be calculated as follows:

c = \frac{x}{t}

Where:

c: is the speed of light = 3x10⁸ m/s

t: is the time = 8 min

Hence, the distance is:

x = c*t = 3 \cdot 10^{8} m/s*8 min*\frac{60 s}{1 min} = 1.44 \cdot 10^{11} m = 1.44 \cdot 10^{8} km

Therefore, the order of magnitude of the distance from the sun to Earth is 10⁸ km.

I hope it helps you!

5 0
3 years ago
A 5kg rock and a 10kg rock are dropped from a height of 10m?
fredd [130]
Look out below ! You should step nimbly to one side, to avoid being hit by one or the other of those hazardous weight objects when they arrive (at the same time).
5 0
3 years ago
Which of the following is NOT a way to identify a mineral
arsen [322]

Answer:

Color, however, is the least useful property for mineral identification. One reason is that many minerals have similar colors. Also, impurities can turn colorless minerals into colored minerals.

Explanation:

6 0
2 years ago
One gallon of gasoline in an automobiles engine produces on average 9.50 kg of carbon dioxide, which is a greenhouse gas; that i
Musya8 [376]

The annual production of carbon dioxide is 124121.49×10^{6}[/tex] kg.

First we calculate the fuel consumed by each car in a year

Fuel consumed=6990/21.4=326.63 gallon

Now we calculate the amount of fuel consumed by 40 million cars in a year

Fuel consumed=326.63*40*10^6=13065.42 million gallon,

Now we can calculate the annual production of carbon dioxide in the USA

CO2 production rate=9.50*13065.42=124121.49*10^6 kg

Therefore the annual production of carbon dioxide in USA is 124121.49×10^{6}[/tex] kg

4 0
3 years ago
How long does it take to change a flat plain into mountains? help
Len [333]
Im not for sure but i think it takes a couple hundred years (or according to the climate)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Most earthquakes occur in areas close to where tectonic plates meet. There are earthquakes in San Francisco. What can be conclud
    15·2 answers
  • How do you make a lightsaber?​
    15·2 answers
  • Ancient species found in just one region, whose close relatives have all gone extinct, are designated __________.
    12·1 answer
  • As important as it is to plan ahead,sometimes you
    9·2 answers
  • What is the direction of the electric field at the dot??
    7·1 answer
  • Do Earth’s oceans gain or lose water, considering evaporation and precipitation together? How much?
    10·1 answer
  • Alondra applies 24 N of force to the end of a stick (a type of lever) to open a can of paint.
    10·2 answers
  • A 15 m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes a 60° angle with horizontal. (a) Find t
    11·1 answer
  • The forces acting on a ball sitting on the ground are
    13·1 answer
  • What can be inferred when an atom is electrically charged?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!