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
andreev551 [17]
3 years ago
14

Is sand a dependent or independent variable

Physics
2 answers:
anastassius [24]3 years ago
6 0

Answer:

dependent variable

Explanation: Because sand changes when water touches it therefore it would be considered a dependent variable

Butoxors [25]3 years ago
6 0
It would be dependent
You might be interested in
In which medium would sound travel the fastest? a)across a room b)in a swimming pool c)through outer space d)through a railroad
lora16 [44]

d)through a railroad track

7 0
3 years ago
Potassium is a crucial element for the healthy operation of the human body. Potassium occurs naturally in our environment and th
Mariulka [41]

Answer:

a) 0.0288 grams

b) 2.6*10^{-10} J/kg

Explanation:

Given that:

A typical human  body contains about 3.0 grams of Potassium per kilogram of body mass

The abundance  for the three isotopes are:

Potassium-39, Potassium-40, and Potassium-41 with abundances are 93.26%, 0.012% and 6.728% respectively.

a)

Thus; a person with a mass of 80 kg will posses = 80 × 3 = 240 grams of potassium.

However, the amount of potassium that is present in such person is :

0.012% × 240 grams

= 0.012/100 × 240 grams

= 0.0288 grams

b)

the effective dose (in Sieverts) per year due to Potassium-40 in an 80- kg body is calculate as follows:

First the Dose in (Gy) = \frac{energy \ absorbed }{mass \ of \ the \ body}

= \frac{1.10*10^6*1.6*10^{-14}}{80}

= 2.2*10^{-10} \ J/kg

Effective dose (Sv) = RBE × Dose in Gy

Effective dose (Sv) =  1.2  *2.2*10^{-10} \ J/kg

Effective dose (Sv) = 2.6*10^{-10} J/kg

 

5 0
3 years ago
The work done by an external force to move a -8.50 μC charge from point a to point b is 6.10×10−4 J . If the charge was started
bekas [8.4K]

Answer:

-54.12 V

Explanation:

The work done by this force is equal to the difference between the final value and the initial value of the energy. Since the charge starts from the rest its initial kinetic energy is zero.

W=\Delta E\\W=\Delta K+\Delta U\\W=K_f+\Delta U\\\Delta U=W-K_f\\\Delta U=6.10*10^{-4}J-1.50*10^{-4}J\\\Delta U=4.60*10^{-4}J

The change in electrostatic potential energy \Delta U, of one point charge q is defined as the product of the charge and the potential difference.

\Delta U=qV\\V=\frac{\Delta U}{q}\\V=\frac{4.60*10^{-4}J}{-8.50*10^{-6}C}\\V=-54.12 V

5 0
4 years ago
How does mass affect the change in velocity of an object? Immersive Reader
Bas_tet [7]

Answer:

I would say the 3rd one

Explanation:

5 0
2 years ago
Explain how evaporation cools a liquid​
MAVERICK [17]

When evaporation occurs liquid absorbs heat from the surroundings to get converted to its vapour form as a result, there is an overall decrease in the heat leading to cooling of the liquid.

Hope that this was helpful :)

8 0
3 years ago
Other questions:
  • A volleyball player bumps a ball across a net with the velocity and angle shown below. What is the maximum height of the ball?
    15·1 answer
  • What If? Fluoride ions (which have the same charge as an electron) are initially moving with the same speed as the electrons fro
    14·1 answer
  • Convert 540 cg= ____ Hg
    13·1 answer
  • The mass number of iodine is 126, and it’s in the 53rd place in the periodic table. It has
    14·1 answer
  • The electric field, generated by a point charge, has strength of 180,000 N/C at a point 1.50 cm from the point charge. What is t
    11·1 answer
  • By exerting a force on the astronaut, the vehicle in which they orbit experiences an equal and opposite force. If the mass of th
    8·1 answer
  • For what reason Do meteorogists use isobars on a weather map
    7·2 answers
  • Explain the difference in how particles are arranged in a solid,liquids and gases
    15·2 answers
  • Explain why white light splits up into the different colours when it goes through a prism
    13·1 answer
  • En las olimpiadas del 2012 del colegio villapalos maria gano la carrera de los 100 m en 10,56 s y la de 200 m en 22,34 s ¿en cua
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!