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
gavmur [86]
3 years ago
11

Date Page 2. A bicycle of 15kg is moving with the velocity of 10m/s. calculate the kinetic energy. ​

Physics
1 answer:
QveST [7]3 years ago
3 0

Answer:

\boxed {\boxed {\sf 750 \ J}}

Explanation:

Kinetic energy is the energy an object possesses due to motion. It is calculated using the following formula.

E_k= \frac{1}{2} mv^2

In this formula, <em>m</em> is the mass and <em>v </em> is the velocity.

The bicycle has a mass of 15 kilograms and a velocity of 10 meters per second.

  • m= 15 kg
  • v= 10 m/s

Substitute the values into the formula.

E_k= \frac {1}{2} (15 \ kg)(10 \ m/s)^2

Solve the exponent.

  • (10 m/s)²= 10 m/s * 10 m/s = 100 m²/s²

E_k= \frac{1}{2} (15 \ kg)( 100 \ m^2/s^2)

Multiply all the values together.

E_k= \frac{1}{2} ( 1500 \ kg*m^2/s^2)

E_k= 750 \ kg*m^2/s^2

1 kilogram meter squared per second squared is equal to 1 Joule. Therefore, our answer of 750 kg*m²/s² is equal to 750 J.

E_k= { 750 \ J

The kinetic energy of the bicycle is <u>750 Joules.</u>

You might be interested in
Uses of hydrometer in points​
Arisa [49]

Answer:

A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water

7 0
3 years ago
According to the theory of plate tectonics
Darya [45]

Answer:

Alfred Wegener proposed the idea that earths lithospher is divided into tectonic plates.The theory was only accepted after he died.

8 0
3 years ago
PLEASE HELP!!
Anarel [89]

Answer:

C. Bacteria

Explanation:

Bacteria and archaea are the two domains which consist of organisms with prokaryotic cells. Prokaryotic cells are cells without nuclei or membrane-bound organelles.

8 0
3 years ago
Read 2 more answers
A disk of radius a has a total charge Q uniformly distributed over its surface. The disk has negligible thickness and lies in th
sleet_krkn [62]

The electric potential V(z) on the z-axis is :  V = (\frac{Q}{a^2} ) [ (a^2 + z^2)^{\frac{1}{2} } -z

The magnitude of the electric field on the z axis is : E = kб 2\pi( 1 - [z / √(z² + a² ) ] )

<u>Given data :</u>

V(z) =2kQ / a²(v(a² + z²) ) -z  

<h3>Determine the electric potential V(z) on the z axis and magnitude of the electric field</h3>

Considering a disk with radius R

Charge = dq

Also the distance from the edge to the point on the z-axis = √ [R² + z²].

The surface charge density of the disk ( б ) = dq / dA

Small element charge dq =  б( 2πR ) dr

dV  \frac{k.dq}{\sqrt{R^2+z^2} } \\\\= \frac{k(\alpha (2\pi R)dR}{\sqrt{R^2+z^2} }  ----- ( 1 )

Integrating equation ( 1 ) over for full radius of a

∫dv = \int\limits^a_o {\frac{k(\alpha (2\pi R)dR)}{\sqrt{R^2+z^2} } } \,

 V = \pi k\alpha [ (a^2+z^2)^\frac{1}{2} -z ]

     = \pi k (\frac{Q}{\pi \alpha ^2})[(a^2 +z^2)^{\frac{1}{2} }  -z ]

Therefore the electric potential V(z) = (\frac{Q}{a^2} ) [ (a^2 + z^2)^{\frac{1}{2} } -z

Also

The magnitude of the electric field on the z axis is : E = kб 2\pi( 1 - [z / √(z² + a² ) ] )

Hence we can conclude that the answers to your question are as listed above.

Learn more about electric potential : brainly.com/question/25923373

7 0
3 years ago
Does wax paper, aluminum foil, or plastic wrap cause more friction
Levart [38]
Yes i does. they cause more friction <span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • How is distance related to force in this experiment to mass?
    8·1 answer
  • Which is an example of conduction?
    10·2 answers
  • A 25 kg cart has a momentum of 125 kg nys
    11·1 answer
  • How can a comet become the source of meteoroids and meteors?
    8·2 answers
  • A current-carrying wire of length 52.0 cm is positioned perpendicular to a uniform magnetic field. If the current is 15.0 A and
    8·1 answer
  • Name two offensive strategies that can be utilized in the game of baseball
    13·1 answer
  • a car has a mass of 200kg. It is on a hill 1000m high. How much gravitational potential energy does the car have?
    11·1 answer
  • Electron spin: Radio astronomers can detect clouds of hydrogen too cool to radiate optical wavelengths of light by means of the
    5·1 answer
  • What creates the energy of the Sun?
    14·1 answer
  • A bike travels at 3.0 m/s, and then accelerates to a speed of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!