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
Svetlanka [38]
3 years ago
7

Give 3 examples, from the lab, where potential energy was converted to kinetic energy.

Physics
1 answer:
Stella [2.4K]3 years ago
6 0

1. The red ball was potential energy until it was hit by the pendulum converting into kinetic energy.

2. The 5 pounds was a potential energy, until the rope was cut by the scissors, this made the 5 pounds become kinetic energy.

3. The bucket was a potential energy, till the books landed in it causing it to fall, this became kinetic energy

You might be interested in
A resistor is connected to a 36v power supply. An ammeter measures a current of 2.0 A going through it. Determine the resistance
m_a_m_a [10]

R = 18 ohms

Explanation:

Given:

V = 36 volts

I = 2.0 A

R = ?

Use Ohm's law to solve for the resistance:

V = IR

or

R = V/I

= (36 volts)/(2.0 A)

= 18 ohms

8 0
3 years ago
Which gas law describes the relationship between temperature and pressure at a constant volume
Lelechka [254]
<span>Gay-Lussac's Law:  The Pressure Temperature Law</span>
7 0
4 years ago
Read 2 more answers
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of of2.
Gnoma [55]
OF2 - 
<span>O has 6 electrons in outer shell and F has 7 in its outer shell </span>
<span>Therefore, you have to account for 20 electrons total in the </span>
<span>structure (7+7+6 = 20) </span>
<span>therefore draw it linear first. F ---- O-----F </span>
<span>The two bonds take care of 4 electrons now you have to add another 16. </span>
<span>Therefore 3 lone pairs on each F and 2 lone pair on O. </span>
<span>If you check for formal charges, all the atoms are neutral </span>
<span>F will have 3 lone pairs + 1 bond = 7 electrons (bond = 1/2 electron for formal charge distribution) therefore both the F's are neutral </span>
<span>Now look at the O: it should have 6.. it has two lone pair and 2 bonds = 4 electrons and 2 bonds = 1 electron each = 2 electrons from bonds = 6 total electrons for formal charge which is exactly the # it should have. There is no need for any double bond in this as there are no charges to be separated. </span>
<span>Now if u look at the # of domains around O you will see if you include the lone pairs it has a sp3 hybridization (4 domains) therefore a tetrahedron which has 2 lone pairs and 2 bonds.. since there are two lone pairs, the lone pair/bond pair repulsion is so high it is going to repel the two Fluorines and form a bent structure, looks a lot like H2O. </span>
4 0
3 years ago
Read 2 more answers
What is true of a reaction that has reached equilibrium?
grin007 [14]
When a reaction has reached equilibrium, the rate of the forward reaction<span> equals the rate of the reverse </span>reaction<span>, such that the concentrations of reactants and products remain fairly stable, in a chemical </span>reaction<span>. Hope this answers the question. Have a nice day.</span>
4 0
4 years ago
A window has a glass surface of 2907 cm2 and a thickness of 5.6 mm. Find the rate of energy transfer by conduction through this
butalik [34]

Answer:

2.30714 W

-16.38071 W

Explanation:

k = Heat conduction coefficient = 0.8 W/(m·°C)

A = Area = 2907 cm²

l = Thickness = 5.6 mm

T_2 = Outside temperature

T_1 = Inside temperature

Rate of heat transfer is given by

Q=\frac{kA(T_2-T_1)}{l}\\\Rightarrow Q=\frac{0.8\times 2907\times 10^{-6}\times (81-71)\times \frac{5}{9}}{5.6\times 10^{-3}}\\\Rightarrow Q=2.30714\ W

The rate of energy transfer is 2.30714 W

Q=\frac{kA(T_2-T_1)}{l}\\\Rightarrow Q=\frac{0.8\times 2907\times 10^{-6}\times (0-71)\times \frac{5}{9}}{5.6\times 10^{-3}}\\\Rightarrow Q=-16.38071\ W

The rate of energy transfer is -16.38071 W

7 0
3 years ago
Other questions:
  • How can one tell if an object can absorb light or not? How about transmit?<br> Thank you!
    6·1 answer
  • Work equals force the times
    10·1 answer
  • A ball is thrown horizontally from the top of
    7·2 answers
  • If an atom has 17 protons, 14 neutrons, and 21 electrons, what is the atom's electrical charge?
    9·1 answer
  • A car is moving at a velocity of 25 ms-1.
    9·1 answer
  • A small ball is hung by a string from the ceiling of a train car, so that the ball hangs vertically. Moving from rest, the train
    12·1 answer
  • What will happen to the wave's frequency if its wavelength is made twice as long? A. It will stay the same. B. It will double. C
    10·2 answers
  • In the fastest measured tennis serve, the ball left the racquet at 73.14 m/s . A served tennis ball is typically in contact with
    10·1 answer
  • Isaac attempts to kick a field goal from the 40 yard line. He kicks the football at 38 m/s at a 50° angle above horizontal. If t
    8·1 answer
  • A turntable is switched from 11.3 rad/s to 1.9 rad/s, and the platter goes through an angle of 17.95 radian in reaching the new
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!