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
Lunna [17]
2 years ago
10

It is class 12th physics questions can anyone help me ​

Physics
1 answer:
Ivenika [448]2 years ago
6 0

hope it's helpful for you

You might be interested in
How high does Pete lift his sledge hammer if he used a force of 25N to lift the hammer while doing 50J of work?
sasho [114]

Answer:He lifts 2 meters

Explanation:We are trying to find the distance. The formula for distance is W/Force. 50 is our amount of work. 25N is how much force was used. Divide the work bye the force. 50/25=2M

8 0
3 years ago
A cyclist must travel 800 kilometers. How many days will the trip take if the cyclist travels at an average speed of 16 km/h
Sloan [31]

Answer:

2 days 2 hours or 50 hours

Explanation:

800/16=50

8 0
3 years ago
An air bubble at the bottom of a lake 36.0 m deep has a volume of 1.22 cm^3. If the temperature at the bottom is 5.9°C and at th
AlexFokin [52]

Answer:

volume of the bubble just before it reaches the surface is 5.71 cm³

Explanation:

given data

depth h = 36 m

volume v2 = 1.22 cm³ = 1.22 × 10^{-6} m³

temperature bottom t2 = 5.9°C = 278.9 K

temperature top  t1 = 16.0°C = 289 K

to find out

what is the volume of the bubble just before it reaches the surface

solution

we know at top atmospheric pressure is about P1 = 10^{5} Pa

so pressure at bottom P2 = pressure at top + ρ×g×h

here ρ is density and h is height and g is 9.8 m/s²

so

pressure at bottom P2 = 10^{5} + 1000 × 9.8 ×36

pressure at bottom P2 =4.52 × 10^{5}  Pa

so from gas law

\frac{P1*V1}{t1} = \frac{P2*V2}{t2}

here p is pressure and v is volume and t is temperature

so put here value and find v1

\frac{10^{5}*V1}{289} = \frac{4.52*10^{5}*1.22}{278.9}

V1 = 5.71 cm³

volume of the bubble just before it reaches the surface is 5.71 cm³

6 0
3 years ago
An 85-kg rock climber, when reaching the summit, built up 250,000 J of gravitational potential energy. How high did the climber
Vesna [10]

It's 300! I just got it correct:)

3 0
3 years ago
Read 2 more answers
30cm³ of brine of relative density 1.15 and 42cm³ of water are mixed. What is the density of the final solution​
Aleks04 [339]

Answer:

I think it's the most important part in this

7 0
3 years ago
Other questions:
  • A cubical shell with edges of length a is positioned so that two adjacent sides of one face are coincident with the +x and +y ax
    7·1 answer
  • In the process of changing a flat tire, a motorist uses ahydraulic jack. She begins by applying a force of 45 N to the inputpist
    12·1 answer
  • The maximum number of eletrons that can occupy a 3p sublevel is
    8·1 answer
  • Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 4.
    14·1 answer
  • The geocentric model of the universe stated that _____.
    6·2 answers
  • WORTH 50 POINTS!!!<br> Please help me with questions 1,2,3,4,5,6 and 7 ASAP!
    13·1 answer
  • Any one watch SerieS here
    8·2 answers
  • Please helppppppp!!!!!!
    6·1 answer
  • A student's backpack has a mass of 9.6 kg. The student applies a force of 94.08 N [up] while walking through 1.4 km [E] to get t
    8·1 answer
  • A road map is an example of a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!