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Yuki888 [10]
3 years ago
8

If your kinetic energy is different from your work input (either greater or less) throuroughly explain what caused this discrepe

ncy
Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0
As per work energy theorem,
Work done by all forces = change in kinetic energy
If kinetic energy is different than your work input, then certainly other forces which are responsible for this discrepancy. These forces can be internal or external.
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When opening a door, you push on it perpendicularly with a force of 57.0 n at a distance of 0.470 m from the hinges. what torque
TiliK225 [7]
<span>Torque = force * distance from axis of rotation. Multiply. If it's not perpendicular, you multiply that with the sine of the angle between the force and the perpendicular direction. T= 0.470*57*Sin 90 = 26.79 N</span>
3 0
3 years ago
A scientist counts the number of bacteria colonies growing in each of six lab dishes.
Vsevolod [243]

Hi!

The correct answer is: C. It is the data value that appears the most often in the set.

<h3>Explanation</h3>

The mode of a set of values is the number which is the most frequently appearing, or most repeating value in the range. The numbers that show one time each are

A - 16 , C - 25 , D - 3

While 13 appears three times with the dishes labelled

B , E and F

So, the value that appears the most times is 13, and hence 13 is taken as the mode of this data set

<h3>Hope this helps!</h3>
5 0
3 years ago
Read 2 more answers
2kg of water at 30 C is poured into a 1kg copper beaker at 20 C.
GREYUIT [131]

The temperature of the water and copper beaker be together is 29.6⁰C.

<h3>What is the equilibrium temperature of both substance?</h3>

The final temperature or equilibrium temperature of the water and copper beaker is calculated by applying the principle of conservation of energy.

Heat lost by the water = Heat gained by the copper beaker

mcΔθ (water) = mcΔθ (copper)

where;

  • m is mass
  • c is specific heat capacity
  • Δθ is change in temperature

m₁c₁(T₁ - T) = m₂c₂(T - T₂)

where;

  • T₁ is the initial temperature of water
  • T₂ is the initial temperature of copper beaker
  • T is the equilibrium temperature

Specific heat capacity of copper, c₂ = 389 J/kgK

Specific heat capacity of water , c₁ = 4200 J/kgK

(2)(4200)(30 - T) = (1)(389)(T - 20)

252,000 - 8400T = 389T - 7780

259,780 = 8789T

T = 259,780 /8789

T = 29.6⁰C

Learn more about equilibrium temperature here: brainly.com/question/8925446

#SPJ1

8 0
1 year ago
Objects through which light can pass are referred to as dash objects​
Sergio [31]

Answer:

Those objects are called transparent objects...

Explanation:

If only some light can pass through them ,it is called translucent....

If no light can pass through them ,it is called opaque.

3 0
3 years ago
Which object has more heat energy , a hot cup or a cold cup? why
NARA [144]

a hot cup because if a hot cup is hotter it's been in the sun too long

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3 years ago
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