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
Sati [7]
3 years ago
15

PLeeease help im so tired and i need to SLEEP. Answer the 1s you know

Chemistry
1 answer:
Bas_tet [7]3 years ago
3 0
1. when the ball is just starting to fall, it has high potential but low kinetic energy. when it hits the floor, it has high kinetic but low potential energy
2. heat energy
3. reflective-transparent would be best, as they can reflect some light while let other light through, reflective-opaque would be useless in any circumstances because no light at all would be able to get through
You might be interested in
Which is most likely why many scientists reject the cold fusion theory?
mina [271]
The original results have not been replicated consistently and reliably.

8 0
3 years ago
Read 2 more answers
What did you include in your hypothesis? Check all that apply.
Tcecarenko [31]

The following observation would be included in a hypothesis: a connection between type of material and thermal energy transfer is developed (option C).

<h3>What is a hypothesis?</h3>

Hypothesis is a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.

The hypothesis is regarded as an educated guess because it predicts the possible outcome of an experiment.

The hypothesis is a statement that relates the independent variable of the experiment with the measured or dependent variable.

Therefore, the following observation would be included in a hypothesis: a connection between type of material and thermal energy transfer is developed.

Learn more about hypothesis at: brainly.com/question/13025783

#SPJ1

5 0
1 year ago
How many moles are contained in 2.0 L of N2 at standard temperature and pressure.
GuDViN [60]

0.091 moles are contained in 2.0 L of N2 at standard temperature and pressure.

Explanation:

Data given:

volume of the nitrogen gas = 2 litres

Standard temperature = 273 K

Standard pressure = 1 atm

number of moles =?

R (gas constant) = 0.08201 L atm/mole K

Assuming nitrogen to be an ideal gas at STP, we will use Ideal Gas law

PV = nRT

rearranging the  equation to calculate number of moles:

PV = nRT

n = \frac{PV}{RT}

putting the values in the equation:

n = \frac{1X2}{0.08201 X 273}

n = 0.091 moles

0.091 moles of nitrogen gas is contained in a container at STP.

6 0
3 years ago
During an ice age, land can move and specific areas can be permanently changed. true or false
givi [52]

Answer: The given statement is true.

Explanation:

It is known that due to increase in temperature ice melts. Therefore, during ice age there is also melting of ice and solid state of water changes into liquid state of water.

Therefore, this water moves from its initial place and changes its position result in the change of land and specific areas.

Thus, we can conclude that the statement during an ice age, land can move and specific areas can be permanently changed is true.

5 0
3 years ago
When objects of two different temperature are in contact, what happens?
Sonja [21]
Answer: C. the warmer object transfers heat energy to the cooler side
5 0
1 year ago
Read 2 more answers
Other questions:
  • What is the molarity of a solution of 14.0 g NH4Br in enough H2O to make 150 mL of solution?
    5·2 answers
  • The transfer of energy changes the what of water
    10·1 answer
  • Plates that are floating on molten<br> 5. The Earth's surface is made of<br> rock.
    12·1 answer
  • Which list of elements consists of a metal, a metalloid, and a nonmetal?
    12·1 answer
  • For the following reaction, KcKc = 255 at 1000 KK.
    7·1 answer
  • What is the atomic mass of one mole of H? g/mole
    13·2 answers
  • What type of reaction produces a metal from its metal oxide
    5·1 answer
  • Give your familiarity for following terms
    9·1 answer
  • Its Accelerated Science 8th grade​
    9·1 answer
  • If the absorbance of a KMnO4 solution of unknown concentration is 0.633, calculate the concentration of KMnO4 in the solution.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!