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
ANEK [815]
3 years ago
12

A glass of cold water has a temperature of 42.0°E What is this in units of K?

Physics
1 answer:
ExtremeBDS [4]3 years ago
7 0

Answer:

42°C is equivalent to 315.15 K.

Explanation:

In this question, we need to convert the temperature from one scale to another. A glass of cold water has a temperature of 42 °C. The conversion from degree Celsius to kelvin is given by :

T_k=T_c+273.15

Where

T_c\ and\ T_k are temperatures in degree Celsius and kelvin respectively.

So, T_k=42+273.15

T_k=315.15\ K

So, 42°C is equivalent to 315.15 K. Hence, this is the required solution.

You might be interested in
What is the force required to lift the balloon with
Olin [163]

No force is required to lift that balloon. In fact, force is required to hold it down, and if you let go, it's up, up, and away.

Since the balloon's density is less than the density of the air around it, it's lighter than the air it displaces, there is a net upward buoyant force acting on it, and it floats up !

3 0
4 years ago
 A balloon is 3m in diameter and is filled with 5 kg of N2. Find the specific volume of the gas in the balloon. Express it in bo
enyata [817]

Answer:

The the specific volume and weight are 79.16m³/k mol and 49 N.

Explanation:

Given that,

Diameter = 3 m

Mass of N₂ = 5 kg

We need to calculate the volume of balloon

Using formula of volume

V= \dfrac{4}{3}\pi r^3

V= \dfrac{4}{3}\pi \times{\dfrac{d}{2}}^3

V= \dfrac{4}{3}\pi \times(\dfrac{3}{2})^3

V=14.137\ m^3

We need to calculate the specific volume in the balloon

Specific\ volume=\dfrac{Volume}{mass}

Specific\ volume=\dfrac{14.137}{5}

Specific\ volume=2.8274\ m^3/kg

Now, Molar mass of N₂ gas is 0.028 kg/mol

Now, Specific volume of N₂ gas in the balloon is

Specific\ volume =0.028\times2.8274=0.0791672\ m^3/mol

Specific\ volume =79.16m^3/kmol

(b). We need to calculate the weight of the gas in the balloon

Weight of the balloon is dependent on the mass of the gas.

The weight of the gas is given by

W = mg

W = 5\times9.8

W = 49\ N

Hence, The the specific volume and weight are 79.16m³/k mol and 49 N.

7 0
4 years ago
Which describes the relationship between the frequency, wavelength, and speed of a wave as the wave travels through different me
sasho [114]

Correct answer choice is :


A) As speed changes, wavelength changes and frequency remains constant.


Explanation:


The higher the energy, the higher the frequency and the smaller the wavelength. The relation among wavelength and frequency the greater the frequency, the smaller the wavelength it reflects that short wavelengths are more dynamic than large wavelengths. The wavelength and frequency of light are almost associated. The greater the frequency, the smaller the wavelength. Because all small waves move into space at the very speed, the amount of wave peaks spending by a read point in one second depends on the wavelength.


4 0
3 years ago
Read 2 more answers
Samples of different materials, A and B, have the same mass, but the sample
NISA [10]

Answer: C. The particles that make up material A have more mass than the

particles that make up material B.

7 0
3 years ago
Read 2 more answers
Thomson's cathode ray experiment showed that:
riadik2000 [5.3K]
I believe the best option to go with will be option C. electrons are negatively charged 
4 0
4 years ago
Other questions:
  • A cattleman has installed a new electric fence. The cows keep escaping because they are not deterred by the low power they exper
    5·2 answers
  • The human body is an organism made up of cells, tissues, organs, and organ system. Here are examples of three types of muscle ti
    7·1 answer
  • What causes some materials to have magnetic field
    10·1 answer
  • A certain brand of hot-dog cooker works by applying a potential difference of 120 V across opposite ends of a hot dog and allowi
    6·1 answer
  • A simple pendulum has a mass of 0.259 kg and a length of 0.97 m. It is displaced through an angle of 31.4 degrees and then relea
    7·1 answer
  • at 20 c a length of copper wire has a resistance of 5.0. What is its resistance when the wire is heated to 80c? let a=.0004 at 2
    11·1 answer
  • What do kepplers laws describe?
    13·1 answer
  • DIFFERENT PICTURE.... WHAT IS HAPPENING IN THIS PICTURES
    14·2 answers
  • You want the current amplitude through a 0.450 mH inductor (part of the circuitry for a radio receiver) to be 1.50 mA when a sin
    14·1 answer
  • Please help, im stuck on this question
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!