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
son4ous [18]
3 years ago
11

Estimate the power you produce in running up a flight of stairs. Give your answer in horsepower (1 hp = 746 W). Suppose you clim

b one flight of stairs (3 m) in 10 seconds (you run up the stairs quickly). Estimate your mass to be 71 kg .
Physics
2 answers:
Andrej [43]3 years ago
5 0
<span>If we call the time it took for you to climb the stairs in seconds, T, the height of the stairs in meters, h, your weight in newtons, W, then to find the power you developed in watts, P, the following formula restates what we said above: Power = W x h/t, W= 71kg x 9.81m/sec sq.= 696.51 N, Height h= 3m, time t= 10 sec, Power P=( 696.51 x3) 10= 208.953 watts = 0.28 hp.</span>
GarryVolchara [31]3 years ago
3 0
The first thing you should do is calculate the work done when climbing the stairs. This work by definition will be given by:
 W = F * d
 W = (m * g) * (d)
 W = ((71) * (9.8)) * (3) = 2087.4J
 Then, you can calculate the power that in this case is given by
 P = W / t
 P = (2087.4) / (10) = 208.74W
 To have the result in HP we use the fact that 1HP = 746W
 P = (208.74) / (746)
 P = 0.28 HP
 answer
 the power you produce in running up a flight of stairs is 0.28 HP
You might be interested in
Once out in space, the space shuttle needs to ________________ to keep going in the same direction at the same speed.
MissTica
Accelerate.
Hope it helps<span />
3 0
3 years ago
Read 2 more answers
In the formula used to solve problems related to the first law of thermodynamics, what does Q represent? A.internal energy
Blizzard [7]
B, heat, is the correct answer. Heat is represented by a capital q in thermodynamic equations.
7 0
3 years ago
Read 2 more answers
Interchangeably means​
ryzh [129]

Answer:

Interchangeable is something that can be used in the same manner as something else without any important differences.

or in a more simple way

something that can be exchange

For example when two sweaters look almost the same and you could easily wear either one with a particular skirt, this is an example of when the sweaters can be worn interchangeably.

3 0
2 years ago
Read 2 more answers
Tammy leaves the office, drives 34 km due north, then turns onto a second highway and continues in a direction of 35◦ north of e
Natasha2012 [34]

Answer:

The total displacement is 102 km 51^o north of east.

Explanation:

We can treat this problem as a trigonometric one, so we need to calculate the total displacement on the north and east.

d_n=34km+79km*sin(35^o)=79km

and

d_e=79*cos(35^o)=65km

The total displacement is given by:

D=\sqrt{(79km)^2+(65km)^2}=102km

with an agle of:

\alpha =arctg(\frac{79km}{65km})=51^o

4 0
3 years ago
Which statement correctly describes the gravitational potential energy of the pendulum based on this diagram?
MrRa [10]
I think it's 'C' but I won't know for sure until you let me see the diagram.
8 0
3 years ago
Other questions:
  • A 12 oz can of soda is left in a car on a hot day. In the morning the soda temperature was 60oF with a gauge pressure of 40 psi.
    14·1 answer
  • A 15.0 mW laser puts out a narrow beam 2.00 mm indiameter.
    13·1 answer
  • What does it mean when white light is diffracted and at a particular location the color seen is blue? Please use 2 content relat
    13·1 answer
  • State one function of pupil of and eye
    11·1 answer
  • How do scientists use models to make predictions?
    14·1 answer
  • In order to determine the velocity,you must know?
    9·1 answer
  • A car starts moving after waiting for a traffic light to turn green. It is able to travel a distance of 300 meters in 10 seconds
    14·2 answers
  • A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.7 kg and the sign has a mass of ms = 17.
    15·1 answer
  • How does social theory learning impact on children​
    10·1 answer
  • What is the medium of the wave shown in the photograph?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!