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
ICE Princess25 [194]
4 years ago
7

A new process converts potential energy of an object to kinetic energy. Neither work nor eat is added to the system. No reaction

takes place. What determines the velocity of the Anew bject? Not sure All of the above Elevation of the process Change in height of the object Mass of the object
Chemistry
1 answer:
blagie [28]4 years ago
5 0

Answer:

Change in height of the object

Explanation:

Change in height of the object

Since ,

We know potential energy can be written as mgh where

P.E. = mgh

M = mass ,

g = gravity constant

h = height

Kinetic energy can be written as 0.5 mv²

So , the Potential energy = kinetic energy

Then ,

velocity of object = √2 gh

Since g is a constant ,

Hence ,

Height of object will determine the velocity.

You might be interested in
A sample of 5.30 mLmL of diethylether (C2H5OC2H5;density=0.7134g/mL)(C2H5OC2H5;density=0.7134g/mL) is introduced into a 6.50 L L
lilavasa [31]

Answer:

1.16atm

Explanation:

We are going to derive the mass of ether from density

mass=density *volume

Also moles=mass/molecular mass

molar mass C2H5OC2H5 =74.12 g/mole

the density of ether is 0.7134 g/ml

mass C2H5OC2H5 = 5.30 ml x 0.7134 g/ml = 3.78 g

moles C2H5OC2H5 =3.78 g x 1 mole/74.12 g = 0.0509 moles

PV = nRT where P=?; n=0.0509 moles; V=6.50L; R=0.0821 Latm/Kmol; T=35ºC +273 = 308K

P = nRT/V = 0.0509)(0.0821)(308)/6.50

P = 0.198 atm (to 3 significant figures (this is the partial pressure of diethyl ether).  

TOTAL PRESSURE

P1+p2+p3

= 0.198 atm + 0.750 atm + 0.207 atm =1.1550atm

1.16atm(3 significant figures)

5 0
4 years ago
How many grams of solid potassium hypochlorite should be added to 2.00 L of a 0.244 M hypochlorous acid solution to prepare a bu
Olin [163]

Answer:

8.2763 g

Explanation:

Considering the Henderson- Hasselbalch equation for the calculation of the pH of the buffer solution as:

pH=pKa+log[base]/[acid]

Where Ka is the dissociation constant of the acid.

Given that the acid dissociation constant = 3.5×10⁻⁸

pKa = - log (Ka) = - log (3.5×10⁻⁸) = 7.46

Given concentration of acid = [acid] = 0.244 M

pH = 6.733

So,

6.733 = 7.46+log[base]/0.244

[Base] = 0.0457 M

Given that Volume = 2 L

So, Moles = Molarity × Volume

Moles = 0.0457 × 2 = 0.0914 moles

Molar mass of potassium hypochlorite = 90.55 g/mol

Mass = Moles × Molar mass = (0.0914 × 90.55) g = <u>8.2763 g</u>

7 0
4 years ago
I NEED HELP!!
solmaris [256]
A simple sugars are formed

5 0
3 years ago
Read 2 more answers
A substance has a high melting point and conducts electricity in the liquid phase The is substance is
posledela

Answer:

oxygen

Explanation:

?

3 0
3 years ago
Give an example of liquid diffusing into a solid​
Sloan [31]

Answer:

Mecury almagamated zinc

6 0
3 years ago
Other questions:
  • Classify each of the following substances:
    5·1 answer
  • Which changes of the state takes place when an igneous rock turns into sedimentary rock?
    6·1 answer
  • What is the correct value for Avogadro's number?
    5·1 answer
  • When scientists use one of their five senses to gather information, they are A. making an observation. B. making an inference. C
    7·2 answers
  • What chemical processes occur in the body to allow starch to enter our cells
    5·1 answer
  • What's the answer to this and why? need a answer asap​
    5·1 answer
  • Help on this one too please?, thanks :)
    12·2 answers
  • Calculate the molarity of a solution consisting of 25.0 g of KOH in 3.00 L of solution.
    14·1 answer
  • Age
    15·1 answer
  • Alkali Metals:a. What is the group number? ______b. Are these metals reactive? ______c. Do these metals occur freely in nature?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!