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
Sav [38]
3 years ago
8

5) A 5 kg watermelon is raised 3 m by carrying it up the stairs to the second

Physics
1 answer:
Nutka1998 [239]3 years ago
3 0

Answer: 150J

Explanation:

m = 5 kg

g = 10 m/s2

h = 3m

P.E = mgh

P.E = 5 x 10 x 3

P.E = 150J

You might be interested in
What are two things that the amount of gravitational force between two object depends on
Amiraneli [1.4K]
1).  the product of the two masses being gravitationally attracted to each other

2).  the distance between their centers of mass

And that's IT.  The gravitational force between them depends on
only those two things, nothing else.
3 0
3 years ago
Read 2 more answers
You Discover A Beautiful Island Upon Which You May Build Your Own Society. You Make The Rules. What Is The First Rule You Put In
alekssr [168]

Answer: no plastic

Explanation:

4 0
2 years ago
Read 2 more answers
A current I flows down a wire of radius a.
Helga [31]

Answer:

(a) K = \frac{I}{2\pi a}

(b) J = \frac{I}{2\pi as}

Explanation:

(a) The surface current density of a conductor is the current flowing per unit length of the conductor.

                                   K = \frac{dI}{dL}

Considering a wire, the current is uniformly distributed over the circumferenece of the wire.

                                   dL = 2\pi r

The radius of the wire = a

                                    dL = 2\pi a

The surface current density K = \frac{I}{2\pi a}

(b) The current density is inversely proportional

                                     J \alpha  s^{-1}    

                                     J = \frac{k}{s}           ......(1)

k is the constant of proportionality

                                     I = \int\limits {J} \, dS

                                     I = J \int\limits \, dS     ........(2)

substituting (1) into (2)

                                     I = \frac{k}{s} \int\limits\, dS

                                     I = k \int\limits^a_0 \frac{1}{s}  {s} \, dS

                                     I = 2\pi k\int\limits\, dS

                                     I = 2\pi ka

                                     k = \frac{I}{2\pi a}

substitute J = \frac{k}{s}

                                     J = \frac{I}{2\pi as}

7 0
2 years ago
Meteorology is BEST defined as
alexgriva [62]
It is the branch of science, in which we study different phenomena of atmosphere including climate and weather.
5 0
3 years ago
Read 2 more answers
I just need the answer
Archy [21]

Answer:

I'll try to help which grade are you?

7 0
2 years ago
Other questions:
  • How far does a cyclist travel if she's going 6 m/s in 10 seconds?
    9·1 answer
  • What is the person called when they deliver babies from the womb?
    10·1 answer
  • Which is an example of chemical energy to thermal energy?
    13·2 answers
  • Explain Kepler's second law in detail with figures.
    5·1 answer
  • A block slides forward 4.73 m while being pulled back by a 39.7 N force at 142° from the direction of motion. How much work does
    13·1 answer
  • Fill in the missing words to make the statements about electromagnetic induction true.
    15·2 answers
  • Half of the moon is always illuminated by the sun. Given that this is true, then what causes the moon to change phases throughou
    13·1 answer
  • How many states a water has​
    12·2 answers
  • What to do when having a cold
    13·2 answers
  • A house is advertised as having 1460 square feet under roof. What is the area of this house in square meters?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!