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
NNADVOKAT [17]
3 years ago
12

Grace is given a piece of wood, an iron nail, and a styrofoam cup. She puts these objects into a bucket of water and observes th

at the nail sinks to the bottom, the wood floats just under the surface, and the cup floats on top of the water. What property is being demonstrated by this experiment. A) density Eliminate B) melting point C) solubility D) temperature
Physics
1 answer:
wel3 years ago
7 0
Density because any object that is more dense than water (density of 1. I forget the units) sinks, and any object less dense than water floats. 
You might be interested in
At a particular instant the magnitude of the gravitational force exerted by a planet on one of its moons is 7 × 1021 N. Collapse
9966 [12]

Answer:

Fg = 4.2*10²² N

Explanation:

The gravitational force between any two masses, provided that can be approximated by point masses (comparing their diameters with the distance between them), obeys the Newton's Universal Law of Gravitation, which states that the force (always attractive) is proportional to the product of  the masses and inversely proportional to the square of the distance between them (this as a consequence of our Universe being three-dimensional), as follows:

Fg =\frac{G*m1*m2}{r^{2}}

So, if one of the masses increases 6 times, the force between them will be directly 6 times larger, so the new magnitude of the force will be as follows:

Fg₂ = Fg₁*6 = 7*10²¹ N* 6 = 4.2*10²² N

7 0
3 years ago
The energy equivalent of the rest mass of an electron is
DerKrebs [107]

Answer:energy times mass

Explanation: yeh

3 0
3 years ago
What kinds of bonds can happen between the elements of a compound
Anit [1.1K]
What kinds of bonds can happen between the elements of a compound?

<span>Covalent and Ionic</span>

4 0
3 years ago
A device that uses the wet/dry bulb method to measure the ___________________is the sling psychrometer. As seen here, two thermo
makvit [3.9K]

I would say the answer is D

A hygrometer is an instrument used to measure relative humidity. ... To determine the relative humidity, the temperatures are taken from the dry-bulb thermometer and the temperature difference between the wet and dry bulb thermometers.

hygrometer is a weather instrument used to measure the amount of humidity in the atmosphere. There are two main types of hygrometers -- a dry and wet bulb psychrometer and a mechanical hygrometer.

4 0
4 years ago
If a 42kg rolling object slows from 11.5m/s to 3.33m/s how much work did friction do
geniusboy [140]

Answer: 1608.39 J

Explanation: Given that the

mass M = 42kg

U = 11.5m/s

V = 3.33m/s

how much work did friction do

Work done = Force × distance

Work done = Ma × distance

But acceleration a = V/t

Work done = M × V/t × d

Work done = M × V × d/t

Where d/t = velocity

Therefore,

Work done = M × U × V

Work done = 42 × 11.5 × 3.33

Work done = 1608.39 J

8 0
3 years ago
Other questions:
  • Describe how the frequency and period of a wave are related
    14·1 answer
  • During a storm, the power went out at Bailey’s house. She had no electricity. What could she use as an alternate form of electri
    13·1 answer
  • Which gas molecules have the highest average kinetic energy at a given temperature?
    10·1 answer
  • From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 8.10 m/s and angle
    14·1 answer
  • 1. a) What is the weight of a 20.0 kg girl on earth?
    15·1 answer
  • A 12.0 cm object is 9.0 cm from a convex mirror that has a focal length of -4.5 cm. What is the distance of the image from the m
    5·1 answer
  • Find the momentum of a 3.0 kg mass when it is stopped
    9·1 answer
  • Like all planets, the planet Venus orbits the Sun in periodic motion and simultaneously spins about its axis. Just as on Earth,
    7·1 answer
  • A 0.5-kilogram soccer ball is kicked with a force of 50 newtons for 0.2 seconds. The ball was at rest before the kick. What is t
    10·1 answer
  • PLEASE HELP its due today
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!