1. Answer;
Natural motion and violent motion
Explanation;
-Natural motion is the motion arising from the nature of an object. This motion does not require an external cause in order to occur. For example: Heavy bodies naturally move toward the center of the earth, therefore falling is a natural motion.
- Natural motion was determined by the nature of the object and how much of the four classical elements it contained. Violent motion is caused by external forces applied to the object.
2. Answer;
Natural motion
Explanation;
Natural motions are those motions that objects naturally did: objects on earth fell towards the center of the earth. Heavenly objects naturally moved in circles. Additionally, heavy bodies naturally move toward the center of the earth, therefore falling is a natural motion. The natural motion of objects is one of the characteristics of an object.
3. Answer;
To assume that Earth and the other planets rotate around the sun
Explanation;
-Copernicus proposed an alternative theory--that the Earth was a planet orbiting the Sun, and that all planets moved in circles, one inside the other. Mercury and Venus had the smallest circles, smaller than that of the Earth, and therefore their position in the sky was always near the Sun's.
-That made it easy to estimate their distances from the Sun in terms of the Earth-Sun distance.
Electromagnetic induction<span> is a process where a conductor placed in a changing magnetic field or a conductor moving through a stationary magnetic field causes the production of a voltage across the conductor.</span>
Answer:
The angular speed of the disc be at this time is 46.65 rad/s.
Explanation:
Given that,
Angular acceleration
Time t =15.0 s
We will calculate the angular speed of the disc
A disc initially at rest.
So,
Using rotational kinematics equation
Where, = initial angular speed
=final angular speed
= angular acceleration
Put the value in the equation
Hence, The angular speed of the disc be at this time is 46.65 rad/s.
I think its 60. I think you would subtract 144-84 to get the mass of the vinegar molecule.
An increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone occurs.
Explanation:
Ozone gas is normally found in stratosphere, it protects us from solar radiation. Under certain circumstances, it can be formed on the ground level.
Conditions that have to be met in order for this to happen are existing of nitrogen oxides and volatile organic compounds and their reaction catalyzed by heat and light.
During dark, cold and cloudy days, due to the lack of heat and light from the Sun, formation of ozone will be decreased.
Also, this will enable building up of nitrogen dioxide, due to the same reason, leading to increased concentration.