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
prohojiy [21]
3 years ago
11

Complete the sentence with the word "element" or "compound." O is a(n) and H2O2 is a(n) .

Physics
2 answers:
Debora [2.8K]3 years ago
9 0
O (oxygen) is an element, whereas H2O2 (hydrogen peroxide) is a compound.
jeka943 years ago
8 0
O is an element (Oxygen) and H2O2 is a compound (Hydrogen Peroxide)
You might be interested in
A 7 kg ball of clay traveling at 12 m/s collides with a 25 kg ball of clay traveling in the
ANEK [815]

Answer:

<em><u>Given: </u></em>

m1 = 7 kg

V1 = 12 m/s

m2 = 25 kg

V2 = 6 m/s

<em><u>To find:</u></em>

Combined speed of two balls stick together after collision V = ?

<em><u>Solution:</u></em>

<em>According to law of conservation of momentum,</em>

m1V1 + m2V2 = (m1+m2)V

7×12 + 25×6 = (7+25)V

84 + 150 = 32V

V = 234/32

V = 7.31 m/s

Combined speed of two ball is 7.31 m/s

<em><u>Thanks for joining brainly community!</u></em>

4 0
2 years ago
A blue supergiant star has surface temperature 27 kK and has total power output 100000 times that of the Sun.
Free_Kalibri [48]

Answer:

Wien peak ( λmax ) is 107.40 nm

radius of super giant is 1.086 ×10^{10} m

Explanation:

given data

temperature 27 kK

power = 100000 times of Sun

Sun radius =  6.96 × 10^8 m

to find out

Wien peak ( λmax ) and radius of supergiant (r)

solution

we will apply here first wien law to find Wien peak  that is

λmax = b / t

λmax = 2.9 × 10^{-3} / 27000 = 1.0740 × 10^{-7}

so Wien peak ( λmax ) is 107.40 nm

and

now we apply steafay law that is

P = σ × A × T^{4}   .........................1

and we know total power output 100000 time of Sun

so we say  

4πr²sT^{4}  = 100000 × 4πR²sTs^{4}

r² = 100000  × R²Ts^{4} / T^{4}

put here value

r² = 100000  × (6.96×6000^{8} )² × 6000^{4} / 27000^{4}

r² = 1.18132 ×10^{20}

r = 1.086 ×10^{10} m

so radius of super giant is 1.086 ×10^{10} m

3 0
4 years ago
10. Prepare summary notes on the topics of:
Troyanec [42]

Answer:

a) simple machines are devices which makes work easier and simple

7 0
3 years ago
The periodic wave in the diagram below has a frequency of 80. hertz.
ASHA 777 [7]

Answer:

hi how are you

2) 5/8

4) 5/8

6 0
3 years ago
paula finds four unlabeled containers of clear, odorless liquid in her laboratory storage. one of the containers holds water. sh
steposvetlana [31]
The answer is c ............
5 0
3 years ago
Read 2 more answers
Other questions:
  • Describe how the doppler effect explains why a siren has a lower pitch as a fire engine moves away from you. How does the freque
    6·2 answers
  • Determine W (or fuel energy) required to launch a satellite of mass m at rest from a launching pad placed at the surface earth,
    15·1 answer
  • A circular loop of wire with a radius of 4.0 cm is in a uniform magnetic field of magnitude 0.069 T. The plane of the loop is pe
    14·2 answers
  • _____ was responsible for the contribution that light is emitted and absorbed in bundles that are dependent on the frequency of
    10·1 answer
  • A man on a high cliff He threw the stone down at a speed of 10m/s The stone takes 5s, so it falls to the ground.find the height
    6·1 answer
  • Two lab carts are on a frictionless track, attached by a spring. The carts are pushed together by a student in a Physics lab, co
    8·2 answers
  • Find the net work done by friction on the body of a snake slithering in a complete circle of 1.04 m radius. The coefficient of f
    5·1 answer
  • What attitudes and actions can group leaders take in trying to establish trust within a group during the initial stage of group
    9·1 answer
  • Rowenda is stopped on the side of the road. She then starts pedaling her bicycle for 15 seconds. Her final
    8·1 answer
  • Write down the relation between energy and power. ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!