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
OleMash [197]
3 years ago
7

A man with a mass of 70 kg walks up a flight of stairs that is 5 m tall. Another man with a mass of 80 kg walks up the same flig

ht of stairs. Which one has more power?
a) the 70 kg man because he has less mass
b) the 80 kg man because he has more mass
c) the power generated by each is the same
d) power cannot be determined without the time taken to claim the stairs
Physics
1 answer:
Alex_Xolod [135]3 years ago
5 0
It's 'D'. You need to know the time in order to calculate power.
You might be interested in
What’s the opposite of an electron
Anna007 [38]
As its charge, proton -a positive charged molecule at the center of an atom- is the opposite of the electron -the particle which is orbiting the center of an atom.
7 0
4 years ago
An object is moving at a velocity of 23 m/s. It accelerates to a velocity of 85 m/s over a time of 8.3 s. What acceleration did
Bess [88]
\frac{v \: final \: - v \: initial }{time} = \: a
\\ \frac{85 - 23}{8.3} = 7.467 \: \frac{m}{ {s}^{2} }
7 0
3 years ago
Read 2 more answers
Please help me I need this today
Mumz [18]

Answer:

42km/h

Explanation:

Change in km/ Change in time

1.4 x 100

0.033 x100

140km/3.3

= 42.4242 --> 42km/h

<u>Brainliest Appreciated!</u>

4 0
3 years ago
How can you degauss a magnet temporarily?
EleoNora [17]

Answer:

Demagnetization processes include heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal.

Explanation:

7 0
3 years ago
what is the wavelength of waves at the beach if they have a frequency of 0.3 Hz and they move at 7.1 m/s?
Reil [10]

Answer:

23.67 m

Explanation:

We are given;

Frequency; f = 0.3 Hz

Speed; v = 7.1 m/s

Now, formula to get the wavelength is from the wave equation which is;

v = fλ

Where λ is wavelength

Making λ the subject, we have;

λ = v/f

λ = 7.1/0.3

λ = 23.67 m

5 0
3 years ago
Other questions:
  • Anthony and Maelynn are watching a football game outside on a sunny day. Anthony is wearing a black shirt and Maelynn is wearing
    9·2 answers
  • The belief that the Earth is the center of the Universe and all planets rotate about the Earth is called?
    10·1 answer
  • The equation for distance is d = st. If a car has a speed of 35 m/s, how long will it take to go 100 m? A.2.9 s B.3500 s C.65 s
    9·2 answers
  • A person drops a stone off a cliff. If the cliff is 41m high, how long will it take the stone to reach the bottom?
    6·1 answer
  • A stone is thrown vertically upward with a speed of 24.0 ms. (a) How fast is it moving when it reaches a height of 13.0 m? (b) H
    7·1 answer
  • A car of mass 750 kg has an initial speed of 75 mph. Traveling in a straight line, its speed is increased uniformly to 120 mph i
    5·1 answer
  • 2. A man in a hot air balloon drops his “five guy's hamburger” over the edge of the basket. The
    14·1 answer
  • Why do the layers of sedimentary rocks parallel to earth's surface?​
    7·1 answer
  • I am giving out the answers to the 2.01 Waves quiz
    14·1 answer
  • A car is moving at a rate of 72km/hr . How far does the car move when it stops after 4 seconds?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!