Centripital force is a force that draws an object toward a center point. Think of gravity acting on a celestial object as it revolves around the sun, or the force that a string exerts on a ball tied at the end of it to keep it from flying away.
Inertia is the forward momentum of an object, the tendency of an object to continue moving in the direction it is already moving in.
Intertia and centripital motion combine to create circular motion, as an object that is moving in some direction away from a center object, but still drawn to that object by a centripital force, will continue to move, at the same distance away from the object, in a circle around it.
Answer: Gas
Explanation:
Matter exists in three different phases, they are:
- Solid
the phase of matter with fixed shape, high density and non-moving particles that are held together by strong bonds. Example of solids are stone and chalk
- Liquid
the phase of matter with loosely held particles that are held together and take up the shape of the containing vessel. Examples of liquid are water, orange juice
- Gas
This is the phase of matter with no fixed shape or volume, rather its molecules travel rapidly and randomly within the containing vessel. Examples of gases are ammonia and oxygen
Thus, the phase of matter with no fixed shape or volume is known as gas
Answer:
In a tabular column represent the following characteristics of matter-rigidity, compressibility, shape, kinetic energy and density of following substances- brick, honey, air, block of wood, water
Explanation:
Answer:
The resultant velocity of the jet as a vector in component form 426.87 mi/hr 5.36 degrees North.
Explanation:
Vectors are quantities that have their magnitude and direction .
Sketching out the problem given, by using straight lines to represent each of the vectors, we will have a right angled triangle as shown below.
The solution can be obtained by applying Pythagoras theorem to
resolve the vectors.
Velocity of jet plane = 425 mi/hr
velocity of air = 40 mi/hr
Resultant of the vectors =![\sqrt[]{425^{2}+40^{2}}=426.87](https://tex.z-dn.net/?f=%5Csqrt%5B%5D%7B425%5E%7B2%7D%2B40%5E%7B2%7D%7D%3D426.87)
mi/hr
Vector direction =
hence the velocity is 426.87 mi/hr in a direction 5.36 degrees inclined Northward
Using Kepler's third law which is defined as the square of the average distance is directly proportional to the cube of the period. It is expressed as P^2 = a^3, Given that the a = average distance is given, the period would be much easier to compute. P = sqrt(27^3) = 140
