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
denis23 [38]
3 years ago
5

Help me out? thank you.

Chemistry
2 answers:
Assoli18 [71]3 years ago
7 0
I’m not sure of how to do the math part.. but you’ll have to solve for PE first, and then for KE. finding the velocity for the KE formula while doing so.
Vladimir [108]3 years ago
3 0
Wow very difficult I am so confused
You might be interested in
Convert a pressure of 0.0248 mm Hg to the equivalent pressure in pascals (Pa).
drek231 [11]

Answer is 3.306 Pa.


<em>Explanation:</em>


This is a simple unit conversion problem.

1 atm = 760 mmHg = 101325 Pa


Hence,

    0.0248 mmHg = (101325 Pa / 760 mmHg) x 0.0248 mmHg

                           = 3.306 Pa


Pressure can be measured by using many units such as atm, Pa, torr, bar, cmHg, mmHg and so on.


The relationships among those units as follows

1 atm = 101325 Pa = 1.01325 bar = 760 torr, 760 mmHg = 76 cmHg

5 0
3 years ago
9. Calculate the specific heat capacity of titanium if a 43.56 g sample absorbs 0.476 kJ as its temperature changes from 20.5 oC
Shalnov [3]

Answer:

c = 0.528 J/g.°C

Explanation:

Given data:

Mass of titanium = 43.56 g

Heat absorbed = 0.476 KJ  = 476 j

Initial temperature = 20.5°C

Final temperature = 41.2°C

Specific heat capacity = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 41.2°C - 20.5°C

ΔT = 20.7 °C

476 J = 43.56 g × c × 20.7 °C

476 J = 901.692 g.°C × c

c = 476 J / 901.692 g.°C

c = 0.528 J/g.°C  

8 0
3 years ago
When a planet has the illusion of moving backwards or bouncing up and down it is exhibiting what?
Goryan [66]

Answer:  It is exhibiting retrogade motion.

7 0
3 years ago
7. A rectangular block of lead (Pb) measures 20.0 mm X 30.0 mm X 45.0 mm. If the density of Pb is 11.34 g/cm3, calculate the mas
Stolb23 [73]
Mass of Lead is .00042 g
3 0
3 years ago
Please help....thanks :)
Naya [18.7K]

Answer: someone help me with my work its so  hard

Explanation:

6 0
3 years ago
Other questions:
  • Which conclusion is best supported by the information?
    5·2 answers
  • Atoms tendency is to become stable what does this mean
    5·2 answers
  • Characteristics of the fungus kingdom (all of them)
    10·1 answer
  • Which kind of energy transformation occurs during skydiving?
    7·2 answers
  • How many penicillin molecules would you have if you had a total of 36 hydrogen atoms? What would be the total atomic mass?
    11·1 answer
  • Help me ASAP !!!!!!!!!!!!!!!
    13·1 answer
  • A chemical compound once used as a propellant in aerosol sprays is called
    14·1 answer
  • (Immediate) Which structural formula represents a nonpolar molecule?
    5·2 answers
  • The 225 g FeCl2 is about 1.8 moles.
    10·1 answer
  • Dentify the reagents used to carry out the chlorination of benzene. a. cl2/ccl4 b. cl2/fecl3 c. cl2/nacl d. both b and c e. a, b
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!