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
a_sh-v [17]
2 years ago
5

Question 4. Calculate the kinetic energy of a Year 11 pupil (mass 55Kg)

Physics
1 answer:
bogdanovich [222]2 years ago
4 0

Answer:

990 J

Explanation:

Kinetic energy is:

KE = ½ mv²

Given m = 55 kg and v = 6 m/s:

KE = ½ (55 kg) (6 m/s)²

KE = 990 J

You might be interested in
When there is faster-moving water between two ships, are the ships sucked together or pushed together? explain?
Zigmanuir [339]
The ships should get suck together as the water must be replaced from the sides.  Please mark Brainliest!!!
7 0
3 years ago
If two charged objects each have 2.5 C of charge on them and are located 100 m apart, how strong is the electrostatic force betw
LiRa [457]

Answer:

5.619×10⁶ N

Explanation:

Applying,

F = kqq'/r²................... Equation 1

Where F = electrostatic force between the charges, k = coulomb's constant, q = first charge, q' = second charge, r = distance btween the charges

From the questiion,

Given: q = 2.5 C, q' = 2.5 C, r = 100 m

Constant: 8.99×10⁹ Nm²/C²

Substitute these values into equation 1

F = (2.5×2.5×8.99×10⁹)/100²

F = 56.19×10⁵

F = 5.619×10⁶ N

4 0
3 years ago
A student sees a commercial that claims a new dishwasher is energy efficient.
erma4kov [3.2K]

Answer:

ENERGY STAR-certified dishwashers

Explanation:

use advanced technology to get dishes clean while using less water and energy. Soil sensors test the degree of dirt on dishes throughout the wash and adjust the cycle to achieve optimum cleaning with minimal water and energy use.

ENERGY STAR Most Efficient 2021 Dishwashers

Miele. G 6880 SCVi. Type. Standard. ...

Miele. G 6875 SCVi. Type. Standard. ...

Miele. G 6875 SCVi SF. Type. Standard. ...

Miele. G 6885 SCVi. Type. Standard. ...

Miele. G 6835 SCi. Type. Standard. ...

Miele. G 6935 SCi. Type. Standard. ...

Miele. G 6987 SCVi. Type. Standard. ...

Miele. G 4780 SCVi. Type. Standard.

Energy-Saving “No-Heat” Dry

Most new dishwashers offer an energy-saving no-heat drying feature. At the end of the rinse cycle, if the feature is selected, room air is circulated through the dishwasher by fans, rather than using an electric heating element to bake the dishes dry.

Best Dishwashers

Best Overall: Bosch 300 Series Dishwasher.

Best High-End Dishwasher: Bosch 800 Series Dishwasher.

Best Cleaning Performance for the Price: GE GDP665SYNFS Dishwasher.

Best Feature Set and Design: KitchenAid KDPM604KPS Dishwasher.

Best Budget Dishwasher: Maytag MDB7959SKZ Dishwasher.

8 0
3 years ago
The electric flux through a square-shaped area of side 5 cm near a very large, thin, uniformly-charged sheet is found to be 3\ti
deff fn [24]

Answer:

Explanation:

Given

side of square shape a=5\ cm

Electric flux \phi =3\times 10^{-5}\ N.m^2/C

Permittivity of free space \epsilon_0=8.85\times 10^{-12} \frac{C^2}{N.m^2}

Flux is given by

\phi =EA\cos \theta

where E=electric field strength

A=area

\theta=Angle between Electric field and area vector

E=\frac{\phi }{A\cos (0)}

E=\frac{3\times 10^{-5}}{25\times 10^{-4}\times \cos(0)}

E=0.012\ N/C

and Electric field  by a uniformly charged sheet is given by

E=\frac{\sigma }{2\epsilon_0}

where \sigma=charge density

=\frac{\sigma }{\epsilon_0}

\sigma =0.012\times 8.85\times 10^{-12}

\sigma =2.12\times 10^{-13}\ C/m^2    

5 0
3 years ago
Below is a diagram of the orbits of the inner planets examine the diagram and answer questions three and four 
drek231 [11]

Answer:

C is the answer

Explanation:

Earth is the third planet from the sun

you are cheating on your test, I know

3 0
3 years ago
Read 2 more answers
Other questions:
  • The high-speed winds around a tornado can drive projectiles into trees, building walls, and even metal traffic signs. In a labor
    7·1 answer
  • Mary and her younger brother Alex decide to ride the 17 -foot-diameter carousel at the State Fair. Mary sits on one of the horse
    6·1 answer
  • How can a organization encourage total person development among their employees.
    8·1 answer
  • What can your body mass index tell you
    8·1 answer
  • _____ describes the life cycle of a star. nuclear fusion nebular clouds stellar evolution the big bang
    8·2 answers
  • An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pip
    14·2 answers
  • At which location would a bowling ball have the greatest weight?
    8·1 answer
  • Draw the Free- Body diagram of the 37 kilogram glass falling to the floor in a vacuum.
    6·1 answer
  • Investigating arson can be a very complicated and complex job, as you learned in the unit! It is also generally a time sensitive
    15·1 answer
  • A car with a momentum (impulse) of 20,000 kg m/s collides with a wall and comes to a rest in 0.1 seconds. How much
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!