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
ASHA 777 [7]
3 years ago
8

A hiker wears a 7.5 kg backpack while climbing a mountain. After 30 mins thw hiker is 8.2 m above the starting point. What is th

e average amount of power created by the hiker?
Physics
1 answer:
Nesterboy [21]3 years ago
4 0
Power:
P= A/t
A = F · h = m · g · h
P = m · g · h / t,           m = 7.5 kg, g = 9.81 m/s², h = 8.2 m, t = 1800 s
P = 7.5 · 9.81 · 8.2 / 1800 = 0.335 W
You might be interested in
A force has direction and contact
dalvyx [7]

Answer:

A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newton (N). Force is represented by the symbol F. The original form of Newton's second law states that the net force acting upon an object is equal to the rate at which its momentum changes with time.

Other units: dyne, pound-force, poundal, kip, kilopond

SI unit: newton (N)

Common symbols: F→, F, F

7 0
3 years ago
Which example involves the transformation of chemical energy directly into light energy?
zimovet [89]

burning sodium or magnesium

8 0
3 years ago
Which statement describes the relationship between bond strength and the melting and boiling points of a substance?
kogti [31]
I think the answer will be B or C?
6 0
3 years ago
Read 2 more answers
Suppose you first walk 12.5 m in a direction 20° west of north and then 24 m in a direction 40° south of west as shown in the fi
Firlakuza [10]
La ce materie vr ca sunt pe tableta

3 0
3 years ago
A simple machine does work because it applies
tigry1 [53]
Force 
or motion im not toatally sure
7 0
3 years ago
Other questions:
  • Which of these elements do not have atoms whose outer shells are full of electrons?
    9·1 answer
  • Please helppppppppppppppppp
    12·2 answers
  • Which of the following is a correct principle of relative-age dating?       
    15·2 answers
  • ) Un círculo de 120 cm de radio gira a 600 rpm. Calcula: a) su velocidad angular
    12·1 answer
  • If a car manufacturer reduced the mass of a new car model, so that it took a force of 4000 N
    15·1 answer
  • The shortest wavelength of visible light is approximately 400 nm express the wavelength in centimeters
    13·2 answers
  • The other name for 'net force' is 'unbalanced force'. What is the name of the force that could be applied to an object that woul
    6·1 answer
  • What is the geologic time scale and how is it used​
    12·1 answer
  • A 2.00 kg rock is dropped from the top of a 30.0 m high building. Calculate the ball’s momentum at the time that it strikes the
    10·1 answer
  • Inductive charging is used to wirelessly charge electronic devices ranging from toothbrushes to cell phones. Suppose the base un
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!