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
kicyunya [14]
3 years ago
12

A 90.0-kg man runs at a constant speed of 11.5 m/s. what is his kinetic energy?

Physics
1 answer:
harina [27]3 years ago
8 0

The kinetic energy possessed by the man is 517.5 Joules.

<u>Given the following data:</u>

  • Mass = 90.0 kg
  • Velocity = 11.5 m/s.

To find the kinetic energy of the man:

Kinetic energy is an energy that is possessed by a physical object or body due to its motion.

Mathematically, kinetic energy is calculated by using the formula;

K.E = \frac{1}{2} MV^2

<u>Where:</u>

  • K.E is the kinetic energy.
  • M is the mass of an object.
  • V is the velocity of an object.

Substituting the given values, we have;

K.E = \frac{1}{2} × 90 × 11.5

K.E = 45 × 11.5

<em>Kinetic energy = 517.5 Joules.</em>

Therefore, the kinetic energy possessed by the man is 517.5 Joules.

Read more: brainly.com/question/23153766

You might be interested in
Suppose you want to test the hypothesis that plants grow taller when they receive more sunlight. Identify and independent variab
ollegr [7]
The result that should be established is in the form
y = f(x) 
where x, the amount of sunlight is the controlled (independent) variable,
y =  height (growth) that corresponds to the amount of sunlight. Therefore y depends on x.

Clearly,
x, the amount of sunlight is the independent variable. It can be controlled.
y, the measured amount of growth is the dependent variable.

Answer:
The independent variable is the amount of sunlight.
The dependent variable is the growth.
5 0
4 years ago
A switch in an electric circuit controls the flow of electrons in the circuit.
Delvig [45]

Answer:

when you switch off an electrical curcuit you tend to create a 'break' in the curcuit,preventing the electric current to flow around the curcuit,this can be caused by a simple switch or 'break'

Explanation:

7 0
3 years ago
Two satellites revolve around the Earth. Satellite A has mass m and has an orbit of radius r. Satellite B has mass 6m and an orb
melomori [17]

Answer:

aaaaa

Explanation:

M = Mass of the Earth

m = Mass of satellite

r = Radius of satellite

G = Gravitational constant

F=G\frac{Mm}{r^2}

F=G\frac{M6m}{r_b^2}

G\frac{Mm}{r^2}=G\frac{M6m}{r_b^2}\\\Rightarrow \frac{1}{r^2}=\frac{6}{r_b^2}\\\Rightarrow \frac{r_b^2}{r^2}=6\\\Rightarrow \frac{r_b}{r}=\sqrt{6}\\\Rightarrow r_b=2.44948r

r_b=2.44948r

8 0
4 years ago
Which number is not rounded correctly?
LekaFEV [45]

B: 210.8 rounded to 210 is totally wrong, and the reason why is because 210.8 rounded to the nearest whole number is 211, not 210. So B is the one with the error (this option is correct) and the other user that said D, is wrong since 18.42 does round to 18.4.

Hope this helped!

Nate

5 0
3 years ago
Read 2 more answers
Compare and contrast area and volume
katovenus [111]
Area is a region bounded by a CLOSED path, curved path or path with line segments.  Area is usually a two dimensional physical quantity, a designated part on a plane.  An example the surface of a table, face of a wall or a ceiling.  It can also be a surface in 3-dimensions.  Its units are meter² or centimeter² or feet²  etc. A large agricultural field is a good example of an area.  Normally and ideally no object can reside or exist with in an area. An object requires a volume.  It is a collection of all points enclosed or bounded by the boundary or closed path.  It does not have any thickness.

Volume is a 3-dimensional quantity. A physical body occupies space with its material components. It is the amount of space occupied, that is its volume. Any existing body occupying some space has a mass and volume.  A mass having a volume, has surface area and thickness, a height perpendicular to its surface at each point on the surface.
It is expressed as meter³, feet³ etc.
Volume is a product of surface area (cross-section) and length - for example for a wire or rod.

6 0
3 years ago
Other questions:
  • The total thermal energy needed to raise the temperature of this ice cube to 0.0 °C and completely melt the ice cube is 5848 J
    12·1 answer
  • As a transverse wave travels through a rope from left to right, the parts of the rope ______?
    5·1 answer
  • Suppose you have a glider and a hanging mass that you wish to know the masses of but you do not have a triple-beam balance avail
    11·1 answer
  • A train brakes from 40
    10·1 answer
  • It takes four hydrogen nuclei to create one helium nucleus in the proton–proton chain, which is the main energy source of the Su
    8·1 answer
  • What would BEST account for the lack of population in the southwestern portion of Africa?
    14·1 answer
  • a bullet is fired upwards with the initial velocity of 250m/s. determine the time taken to reach the maximum height
    5·2 answers
  • What type of relationship is shown in the graph
    11·1 answer
  • During heavy lifting, a disk between spinal vertebrae is subjected to a 5000-N compressional force. (a) What pressure is created
    8·1 answer
  • Electrical energy in motion is what type of energy ?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!