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
ElenaW [278]
3 years ago
6

A student wished to add a new experiment to Chapter 2 by investigating whether the mass of water changes when it is heated. The

mass of a beaker containing a sample of water at 20°C was 109.44 g. After heating the sample to 60°C, the com- bined mass of the beaker and water was 109.08 g. Do these results contradict the law of conservation of mass? Explain your reasoning.
Physics
1 answer:
Valentin [98]3 years ago
7 0

Answer:

mass conservation is valid for all closed system where the mass will remain in the system always

Explanation:

Conservation of mass is applicable everywhere in classical physics

Here we can also apply mass conservation as we know that the initially the beaker and its water content is having total mass of 109.44 g

m_1 = 109.44 g

now when we heated it to higher temperature then its total mass will be lesser than the initial mass this is because some of the water may evaporate from the system.

Here if we repeat the same experiment with closed boundary then we can see that total mass will be conserved

So here mass conservation is valid for all closed system where the mass will remain in the system always

You might be interested in
Identify the chemical change below
lesya [120]
Imma say go with C (:
5 0
3 years ago
Chris threw a basketball a distance of 27.5 m to score and win his
salantis [7]

Answer:

v₀ = 16.55 m/s

Explanation:

This motion of the ball can be modeled as a projectile motion with following data:

R = Range of Projectile = 27.5 m

θ = Launch Angle = 50°

g = acceleration due to gravity = 9.81 m/s²

v₀ = Initial Speed of Ball = ?

Therefore, using formula for range of projectile, we have:

R = \frac{v_{0}^2\ Sin2\theta}{g}\\\\v_{0}^2 = \frac{Rg}{Sin2\theta}\\\\v_{0}^2 = \frac{(27.5\ m)(9.81\ m/s^2)}{Sin100^o}\\\\v_{0} = \sqrt{273.93\ m^2/s^2}

<u>v₀ = 16.55 m/s</u>

8 0
3 years ago
Travels 11,000 feet along a dark desert highway if the car averages 84 mph find the amount of time to cover this distance
laila [671]

The time taken by traveler to cover the distance is,

t=\frac{d}{v}

Substitute the known values,

\begin{gathered} t=\frac{(11000\text{ ft)}}{(84\text{ mph)(}\frac{1.46667\text{ ft/s}}{1\text{ mph}})_{}} \\ \approx89.3\text{ s} \end{gathered}

Therefore, the time taken by traveler to cover the distance is 89.3 s.

5 0
1 year ago
8x = -6. What does x equal?
allsm [11]

Answer:

x= -3/4

Explanation:

4 0
2 years ago
Read 2 more answers
There are both enviromental and food stimuli that can disrupt sleep true or false
konstantin123 [22]
The answer is true. I hope that this helps you out!!
4 0
3 years ago
Other questions:
  • A moving small car has a head-on collision with a large stationary truck 7.3 times the mass of the car. Which statement is true
    13·2 answers
  • Explain the advantages of using parallel circuits to series circuits in wiring rooms
    9·1 answer
  • 27N-(u)(14kg)(9.8m/s^2)=0
    12·1 answer
  • Put the balloon near (BUT NOT TOUCHING) the wall. Leave about as much space as the width of your pinky finger between the balloo
    11·1 answer
  • Using the data provided below, calculate the corrected wavelength for a spectroscope reading of 6.32.
    8·1 answer
  • Help pls!
    14·1 answer
  • Select the correct answer.
    10·1 answer
  • How many seasons are there in a year
    8·2 answers
  • Recommend An architect wants to design a conference room that
    11·1 answer
  • What two vertical forces act on a falling leaf?(1 point)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!