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
vesna_86 [32]
3 years ago
5

If density of an object is 3gcm-3, will it float or sink in water.

Physics
1 answer:
Tema [17]3 years ago
3 0

The density of water is about 1g/cm³. This object is more dense than water, so it will sink.

You might be interested in
high school physics, no need detail explain, just give the answer, but you have to make sure thank you
andrey2020 [161]

Answer:

approximately 30 degrees

Explanation:

If it takes the cannonball 2 seconds to reach the maximum height, we can use the analysis of the vertical component of the velocity and the fact that the acceleration of gravity is the one acting opposite to this initial vertical component (v_y) of the velocity. We know as well that at the top of the trajectory, the vertical component of the velocity is zero, and then the movement starts going down in it trajectory. So, the final velocity for the first part of the ascending movement is zero, giving us the following equation for the velocity under an accelerated movement (with acceleration of gravity "g" acting):

v_f=v_i-a\,t\\v_f=v_y-g\,t\\0=v_y-9.8\,*\,2\\v_y=9.8\,*\,2=19.6 \frac{m}{s}

By knowing the vertical component of the initial velocity (19.6 m/s), and the actual magnitude of the total initial velocity (40 m/s), we can calculate what angle was the initial velocity vector forming above the horizontal. We use for such the fact that the sine of the angle relates the opposite side of a right angle triangle with the hypotenuse, and solve for the angle using the arcsin function:

sin(\theta)=\frac{opp}{hyp} \\sin(\theta)=\frac{19.6}{40}\\\theta=arcsin(\frac{19.6}{40})\\\theta=29.34^o

which tells us that the closer answer shown is 30^o

7 0
3 years ago
When are ionic bonds formed
allochka39001 [22]

Answer:

ionic bonds formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Explanation:

5 0
3 years ago
1. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C, what could be the reason?
umka2103 [35]

Answer:

It may not be at the sea level

Explanation:

The reason here is water only boils at sea level. This means that if you move water to a different height, say top of a mountain, the boiling temperature of water would change. This is due to the pressure drop at high place. The drop of pressure would make it harder to transform water liquid to gas, thus requiring more temperature.

8 0
3 years ago
Read 2 more answers
Can someone answer this please.?? I really need help
svetlana [45]

Answer:

1. is the age group 35 and 44

2. is 2006 i think its 2006 i cant really tell in the picture but its the one before the last one!

6 0
3 years ago
What is formed when the rock making up a tectonic plate breaks and moves Select one of the options below as your answer:
dem82 [27]

A. a fault hopes this helps you guys

6 0
3 years ago
Other questions:
  • 2)
    10·1 answer
  • HELP ASAP PLEASE - Which best describes how the arrangement of the sun, moon, and the earth affect the range of the tides during
    8·2 answers
  • A skier is skiing down a slope on a mountain. Is mechanical energy conserved?
    6·2 answers
  • What would be the best method for a scientist to use in order to obtain a precise measurement of star’s distance from Earth?
    7·2 answers
  • Features of a projectile motion
    6·2 answers
  • A student was producing 75 watts of power while applying a constant force of 225 newtons to slide a box of books 2.0 meters acro
    10·1 answer
  • Which best describes how geothermal energy is used to make electricity?
    10·1 answer
  • Which of the following is a legal requirement for boat operation?
    13·1 answer
  • A capacitor is made from two hollow, coaxial, iron cylinders, one inside the other. The inner cylinder is negatively charged and
    11·1 answer
  • Two waves travel at the same speed, but one has a larger period. What other parameter/s would be affected by this? (Check all th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!