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
Rus_ich [418]
3 years ago
10

A student conduct an experiment to determine habitation of salt to water affect the density of the water the student feels three

beakers with equal amounts of water he been as one cup of salt to the first beaker 2 cups of salt to the second beaker and no salt of the beaker what is the dependent variable in the students investigation
Physics
1 answer:
Nikolay [14]3 years ago
8 0
Any like answer choices would be helpful '-'
You might be interested in
Evaporation of sweat cools the skin because
Law Incorporation [45]

Answer: c. the molecules with the highest energy evaporate first, lowering the temperature of the sample

Explanation:

The process by which liquid starts to change into vapor phase at any temperature is known as evaporation.

During evaporation , the molecules which possess higher energies escape from the upper layer into vapor phase. the molecules which escape draw energy from surroundings and thus decrease the energy of the surroundings and hence lead to decrease in temperature.

As temperature of the system is directly proportional to the energy of the system , thus decrease in energy leads to decrease in temperature.

K.E=\frac{3RT}{2}

K.E. = Kinetic energy

T = temperature

R= gas constant

6 0
2 years ago
A net force of 20 N acting on a wooden block produces an
Ymorist [56]

Answer:

From the second law of motion:

F = ma

we are given that the force applied on the block is 20N and the block accelerates at an acceleration of 4 m/s/s

So, F=  20N   and  a = 4 m/s/s

Replacing the variables in the equation:

20 = 4* m

m = 20 / 4

m = 5 kg

5 0
3 years ago
What is the pendulum length whose period is 2.0s ?
Mashutka [201]
Formula\ for\ period:\\\ T=2 \pi \sqrt{\frac{L}{g}}\\\ g-gravity=9,8 \frac{m}{s^2} ,\ L-pendulum \ length \\\\ \frac{T}{2 \pi } = \sqrt{ \frac{L}{g} }|square\\\\ \frac{T^2}{2 \pi } = \frac{L}{g} \\\\\ \frac{T^2}{2 \pi }*g=L\\\\ L= \frac{2^2}{2*3,14 }*9,8= \frac{39,2}{6,28} =6,24mT=2 \pi   \sqrt{\frac{L}{g}} \\
 \frac{T}{2 \pi } = \sqrt{ \frac{L}{g} }|square\\
 \frac{T^2}{2 \pi }  = \frac{L}{g} \\
 \frac{T^2}{2 \pi }*g=L\\
L= \frac{2^2}{2*3,14 }*9,8= \frac{39,2}{6,28} =6,24m

7 0
3 years ago
A student travels 4.0m East, 8.0m South, 4.0m west, and finally 8.0m north. What is her displacement
Vedmedyk [2.9K]

Answer:

travel travelled 24 meters

3 0
2 years ago
Parents have a major role in observing how young children grow at home. Create and discuss simple developmental monitoring tips
Rudik [331]

Answer:

by observation of their children

4 0
2 years ago
Other questions:
  • For a machine to be a heat engine, what kind of conversion must it perform?
    10·2 answers
  • Rod AB has a diameter of 200mm and rod BC has a diameter of 150mm. Find the required temperature increase to close the gap at C.
    10·1 answer
  • A force in the +x-direction with magnitude ????(x) = 18.0 N − (0.530 N/m)x is applied to a 6.00 kg box that is sitting on the ho
    10·1 answer
  • In which of the following situations would be the government had been most likely to become involved in union protests?
    6·1 answer
  • Which statement about thermal energy (or heat energy) is most accurate?
    11·1 answer
  • Priscilla is driving her car on a busy street and Harvey passes her on his motorcycle. What will happen to the sound from his mo
    14·1 answer
  • Effieciency of a machine is never 100%
    10·1 answer
  • Help<br><br><br> What is Gravitational Potenial Energy
    13·1 answer
  • A bullet 2cm log is fired at 420m/s and passes straight a 10cm thick board exiting at 280m/s
    8·2 answers
  • 2. If the ball has a velocity of 2.3 m/s, how long does it take it to go 1.1 m?<br> s
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!