Speed up small particles
dont answer 8.4, its wrong
Plato
B. a boulder falling off a cliff in a straight path
C. a ball being thrown straight up
D. a bicyclist moving in a straight line at a constant speed
Accelerated motion refers to any motion with changing velocity, including changes in speed or direction. Most of the examples provided involve accelerated motion, except for the bicyclist moving in a straight line at a constant speed, as both speed and direction remain constant in such scenario.
In the context of physics, accelerated motion refers to any motion in which the velocity changes - either in magnitude (speed) or direction. This can be due to an increase or decrease in speed, or a change in direction. Examples of accelerated motion include an airplane taking off down a straight runway, a boulder falling off a cliff in a straight path, and a ball being thrown straight up.
However, a bicyclist moving in a straight line at a constant speed is NOT an example of accelerated motion. In this case, the speed (magnitude of velocity) and direction are both constant, and therefore there is no acceleration present.
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Answer:
Diffraction patterns are due to INTERFERENCE.
Explanation:
A) Negative three is to the left of negative one on the number line.
B) Negative three is to the right of negative one on the number line.
Eliminate
C) Negative three and negative one are to the right of 0 on the number line.
D) Negative three and negative one are on opposite sides of 0 on the number line.
Answer:
The Answer is D
Explanation:
I know because I just took the test.
Answer:
answer is D
Explanation:
B) Kepler based his laws of planetary motions off of Newton’s law of gravity.
C) Hardy and Weinberg independently came up with a population equation.
D) Darwin and his grandfather both worked on the ideas of survivability.
Answer: The correct answer is B.
Explanation:
"Cumulative" means that something builds on itself. Like one law is formulated from using the result of the other.
Newton's law of gravity had come after that Kepler's laws was formulated.
The law of gravity is more fundamental than Kepler's laws.
Newton formulated his famous law of gravitation between the earth and the moon and also between the Sun and the planet.
After that Kepler's laws came. He gave the law of orbit in which he said that the planet revolves the Sun in an eliiptical orbit. And the other two laws were also given by him. In this way Kepler's law was formulated by using the law of gravity.
Therefore, Kepler based his laws of planetary motions off of Newton’s law of gravity is the best example to show how scientific knowledge is cumulative.
The given system is a constant pressure systemwhere the work done is the product of the pressure and the volume change.
Reasons:
Given parameters;
The original volume, V₁ = 40 cm³
The energy released, E = 950 J
Constant pressure applied, P = 650 torr.
Condition: All energy is converted to work to push back the piston
Required:
The volume to which the gas will expand
Solution;
The work done, W = Energy releases, E = 950 J
Work done at constant pressure, W = P·(V₂ - V₁)
Where;
V₂ - The volume to which the gas will expand
Converting the volume to from cm³ to m³ gives;
V₁ = 40 cm³ = 0.00004 m³
Converting the pressure given in torr to Pascals gives;
650 torr. = 86659.54 Pa.
Therefore, we get;
950 J = 86659.54 Pa. × (V₂ - 0.00004 m³)
Converting to liters gives;
Learn more here:
Answer:
Explanation:
Given :
Initial volume Lit.
Energy J = 9.38 Lit × atm. ⇒ ( 1 Lit×atm. = 101.325 J )
Pressure 650 torr = 0.855 atm. ⇒ ( 1 torr = 0.00132 atm )
In this example we have to be aware of unit conversion system.
From the laws of thermodynamics,
Here in this example, all the energy of combustion is converted into work to push back the piston
Lit =