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
Reptile [31]
4 years ago
8

CAN SOMEONE HELP ME????????

Physics
1 answer:
Ymorist [56]4 years ago
8 0
Rising of magma from the seafloor.

You might be interested in
A circular hole in an aluminum plate is 2.739 cm in diameter at 0.000°C. What is the change in its diameter when the temperature
prisoha [69]

Answer:

L = 2.746 cm

Explanation:

As we know that thermal expansion coefficient of aluminium is given as

\alpha = 24 \times 10^{-6} per ^oC

now we also know that after thermal expansion the final length is given as

L = L_o(1 + \alpha \Delta T)

here we know that

L_o = 2.739 cm

\alpha = 24 \times 10^{-6}

\Delta T = 108 - 0= 108^oC

now we will have

L = 2.739(1 + 24 \times 10^{-6} (108))

L = 2.746 cm

3 0
4 years ago
A cylinder containing an ideal gas has a volume of 2.6 m3 and a pressure of 1.5 × 105 Pa at a temperature of 300 K. The cylinder
frozen [14]
<h2>Answer:13.5\times 10^{8} joules</h2>

Explanation:

From the first law of thermodynamics,

ΔQ=ΔU+W

Where Q is the heat given to the gas,

U is the internal energy of the gas,

W is the workdone by the gas.

When pressure is constant,

\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}

V_{2}=\frac{2.6\times 900}{300}=7.8m^{3}

When pressure is constant,W=PΔV

Where P is pressure and V is the volume of the gas.

Given P=1.5\times 10^{5}Pa

ΔV=7.8-2.6=5.2m^{3}

So,W=1.5\times 10^{5}\times 5.2=7.8\times 10^{5}J

Given that ΔU=6\times 10^{5}

So,ΔQ=6\times 10^{5}+7.8\times 10^{5}=13.8\times 10^{5}J

5 0
4 years ago
What force does the water exert (in addition to that due to atmospheric pressure) on a submarine window of radius 44.0 cm at a d
Butoxors [25]
Calculate the pressure due to sea water as density*depth.
That is, 
pressure = (1025 kg/m^3)*((9400 m)*(9.8 m/s^2) = 94423000 Pa = 94423 kPa

Atmospheric pressure is  101.3 kPa
Total pressure is  94423 + 101.3 = 94524 kPa (approx)

The area of the window is π(0.44 m)^2 = 0.6082 m^2

The force on the window is
(94524 kPa)*(0.6082 m^2) = 57489.7 kN = 57.5 MN approx
3 0
4 years ago
What is the maximum acceleration of a platform that oscillates at amplitude 4.70 cm and frequency 6.50 Hz?
mylen [45]

Answer:

78.315 m/s²

Explanation:

Amplitude, A = 4.70 cm = 0.047 m

Frequency, f = 6.50 Hz

Angular frequency, ω = 2 π f = 2 x 3.14 x 6.50 = 40.82 rad/s

Maximum acceleration, a = ω² A

a = 40.82 x 40.82 x 0.047

a = 78.315 m/s²

8 0
4 years ago
You need to design an experiment to measure the free-fall acceleration. You have an inclined plane made of steel and several obj
Nataliya [291]

Attached a diagram of the scheme described in the problem ..

To solve the problem we need to know the relationship between kinetic and normal force, so

F_k=\mu_k F_N (1)

Where

\mu_k = coefficient of kinetic

F_N=  Normal force

We perform the sum of forces as well,

\sum F_x = Ma(2)

a= Acceletarion

For Normal Force in Y,

F_N= Mgcos \theta  (3)

The force in X,

\sum F_x = Mgsin\theta - F_x (4)

Replacing in (4)

Ma = Mgsin\theta - \mu_k F_N

Ma = Mgsin\theta - \mu_k F_N

Ma = Mgsin\theta - \mu_k Mg cos\theta

a= g(sin\theta-\mu_k cos\theta)

In this way, it does not matter which object is chosen.

6 0
3 years ago
Other questions:
  • At 20 miles per hour the average driver, from the moment he sees danger until he hits the brake, will travel about: 55 feet 88 f
    9·2 answers
  • A spring scale hung from the ceiling stretches by 5.6 cm when a 2.0 kg mass is hung from it. the 2.0 kg mass is removed and repl
    7·1 answer
  • What type of function would you use to sum values in individual pixels in a multi-layered raster data set?
    6·1 answer
  • A key falls from a bridge that is 44 m above the water. It falls directly into a model boat, moving with constant velocity, that
    15·1 answer
  • What is the kinetic energy of a 2,000-kg truck that moves at 5.0 m/s?
    9·2 answers
  • During sexual reproduction, each parent contributes
    5·1 answer
  • Determine la densidad de un cuerpo cuyo volumen es 354 cm3 y su masa 185 g.
    7·1 answer
  • 10. What is the acceleration due to gravity at a location
    13·1 answer
  • Consider a 1.9 MW power plant (this is the useful output in the form of electric energy) that operates between 30∘C and 450∘C at
    5·1 answer
  • Hii! please answer this and have a nice day. :)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!