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
Pachacha [2.7K]
3 years ago
11

Which statement accurately describes a sample of water during parts a and c of the heating curve

Physics
2 answers:
vivado [14]3 years ago
5 0

Answer:

A and C is about 12 cm away from each other.

Explanation:

Olin [163]3 years ago
3 0

Explanation:

A and C is about 25 ccentimetre away

You might be interested in
Why are the loops on a roller coaster tear-drop shaped instead of circular? It would be simpler to design & build tracks wit
VLD [36.1K]
The centripetal force acting on the rider is much greater if the roller coaster has a circular loop, rather than oval. This is because the change in direction is much sharper throughout the loop, causing the rider to experience a much more intense G-Force throughout the loop. 
A teardrop loop features a more gradual change of direction: the cart spends time moving upward, briefly changes direction, and spends the rest of the time moving downward and flattening to a horizontal path. This means the riders experience the majority of the force on the way down as the car levels out, rather than an intense G-force throughout the ride. 

5 0
3 years ago
A simple Atwood’s machine uses a massless
Lady bird [3.3K]
The Atwood's machine is in motion starting from rest, then Vf = Vo + a(t). 
<span>Final Velocity is given as 6.7 m/s and the time is 1.9 s thus 6.7= 0+ a(1.9) </span>
<span>then a = 6.7/1.9 = 3.526 m/s². </span>
<span>The Atwood's Machine also has the formula d= distance = 1/2a(t²) </span>
<span>distance given is 6.365 m , then 6.365 = 1/2 a (1.9)², </span>
<span>a = 3.526 m/s² the same acceleration. </span>
<span>a= g(m1-m2) / m1+m2) </span>
<span>m1a + m2a = m1g - m2g </span>
<span>m1a - m1g = -m2g - m2a </span>
<span>3.526 m1 - 9.81 m1 = -9.81m2 - 3.526 m2 </span>
<span>-6.28 m1 = -13.34 m2 </span>
<span>0.47 m1= m2 </span>
<span>if 24J = 1/2mv² </span>
<span>then 24J = 1/2 m1 ( 6.7)² </span>
<span>48/ 44.89 = m1 </span>
<span>1.069 kg = m1 , then </span>
<span>0.47(1.069) = m2 </span>
<span>0.503 kg = m2</span>
6 0
4 years ago
Given the initial wavefunction Ψ (x, 0) = Axexp (-k x) withx&gt; 0 andk&gt; 0, and Ψ (x, 0) = 0 forx &lt;0, what value must A ta
madam [21]

Answer with explanation:

The Normalization Principle states that

\int_{-\infty }^{+\infty }f(x)dx=1

Given

f(x)=xe^{-kx}(x>0\\\\0(x

Thus solving the integral we get

\int_{0 }^{+\infty }A\cdot xe^{-kx}dx=1\\\\A\int_{0 }^{+\infty }\cdot xe^{-kx}dx=1

The integral shall be solved using chain rule initially and finally we shall apply the limits as shown below

I=\int xe^{-kx}dx\\\\x\int e^{-kx}dx-\int \frac{d(x)}{dx}\int e^{-kx}dx\\\\-\frac{xe^{-kx}}{k}-\int 1\cdot \frac{-e^{-kx}}{k}\\\\\therefore I=\frac{e^{-kx}}{k}-\frac{xe^{-kx}}{k}

Applying the limits and solving for A we get

I=\frac{1}{k}[\frac{1}{e^{kx}}-\frac{x}{e^{kx}}]_{0}^{+\infty }\\\\I=-\frac{1}{k}\\\\\therefore A=-k

3 0
3 years ago
Approximately how much heat energy does it take to raise 1 kg of water by 1 k?
Sidana [21]

Answer:

4186 Joules

Explanation:

The specific heat capacity of a substance is defined as the amount of heat needed to raise the temperature of 1 kg of the substance by 1 Kelvin. In formula,

C_s = \frac{Q}{m \Delta T}

where

Q is the amiunt of heat needed

m = 1 kg is the mass

\Delta T = 1 K

is the variation of temperature of the substance

For water, the specific heat capacity is 4186 J/(kg K). This means that the heat energy required to raise 1 kg of water by 1 K is exactly 4186 J.

4 0
3 years ago
 A hotdog cannon shoots a hotdog straight up in the air with an initial velocity of 30 m/s. How high will the hotdog fly?
Yuri [45]

At its peak height, the hotdog will have no vertical velocity, so that

{v_f}^2-{v_i}^2=2(-g)\Delta y\implies-\left(30\,\dfrac{\mathrm m}{\mathrm s}\right)^2=2\left(-9.8\,\dfrac{\mathrm m}{\mathrm s^2}\right)y_{\mathrm{max}}

\implies y_{\mathrm{max}}=46\,\mathrm m

7 0
3 years ago
Other questions:
  • Suppose that at room temperature, a certain aluminum bar is 1.0000 m long. The bar gets longer when its temperature is raised. T
    13·1 answer
  • When a person bends an arm a different muscle is used to bring it back to the original position. why can't the same muscle be us
    5·1 answer
  • Label the three forms of energy represented in this image
    6·2 answers
  • What is a phone message?
    15·2 answers
  • A tennis ball is dropped from 1.77 m above
    12·1 answer
  • Two boxes (m1 = 43.0 kg and m2 = 39.5 kg) are connected by a light string that passes over a light, frictionless pulley. One box
    7·1 answer
  • A straight fin fabricated from 2024 Aluminum alloy (k=185 W/mK) has a base thickness of t=3 mm and a length of L=15 mm. Its base
    11·1 answer
  • An evacuated tube uses an accelerating voltage of 50 kV to accelerate electrons to hit a copper plate and produce X-rays. Non-re
    13·1 answer
  • When you hold a cold glass of water in your warm hand, which way does the heat flow ?
    6·1 answer
  • Electromagnetic radiation is made up of wave components of electric and magnetic fields moving together. What form of energy is
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!