Answer:
they are less stable
Explanation:
i took the test
The fuel is ignited in a model rocket sitting on a launch pad, which blasts the rocket upward. The rocket goes up because: Group of answer choices air friction pushes on the escaping fuel. the downward force of gravity is less than the downward momentum of the fuel. None of the above. the fuel pushes on the launch pad. the downward force of gravity is greater than the downward momentum of the fuel.
Answer: The fuel pushes on the launch pad.
Explanation: This is a case of Newton's Third Law of Motion which states for every action in nature, there is an opposite and equal reaction.
Inside the rocket, the fuel is combusted creating a force that exerts on the launch pad by pushing it. As a reaction, the pad pushes the rocket upward, allowing it to go up. This is an example of Newton's Third Law of motion.
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How can we add kinetic energy to a baseball or football?
Answer:
Hitting it or throwing it with force.
What is the frequency of a short-wave radio transmission with a wavelength of 20. m?
Answer:
just do that
Explanation:
λ = C/f
Where,
λ (Lambda) = Wavelength in meters
c = Speed of Light (299,792,458 m/s)
f = Frequency
If a musician increases the wavelength of the sound waves
she produces without changing their speed, what must be happening to the frequency?
Explain your answer.
Answer:
The frequency decreases
Explanation:
The frequency will decrease as the wavelength continues to increase.
Wavelength is the distance between successive crests or troughs on a wave motion.
Frequency is the number of waves that passes through a point per unit of time.
it is expressed as;
f = [tex]\frac{speed }{wavelength}[/tex]
We can see that frequency is inversely proportional to wavelength.
As wavelength increases the frequency reduces.
3. Pencils should not be used inside the computer to change the setting of switches or to
and
pry off jumpers because the tip contains lead which can act as a
may damage the computer Components.
Answer: True
Explanation:
Pencils indeed should not be used as tools when working inside a computer because it is made of Lead.
Lead is a conductor of electricity and as such if it is left inside the computer at even miniscule quantities, it can redirect electricity and damage components in the process.
If one wants to work inside a computer, it is best to use tools like tweezers and needle-nose pliers.
Due to the presence of graphite(A good conductor of electricity), Pencils should not be used inside the computer to change the setting of switches.
What is the meaning of conductors?The conductors are the materials that can allow electricity and heat to pass through them.
Since the pencils are made up of graphite which is a good conductor of electricity. When we use pencils to do something inside the computer circuits and if some portion of the graphite remains on the circuit board.
Now due to the good conducting property of the graphite, it will allow the current to flow and the short circuit of the circuit board can take place which will damage the computer.
Thus due to the presence of graphite(A good conductor of electricity). Pencils should not be used inside the computer to change the setting of switches.
To know more about Conducting materials follow.
https://brainly.com/question/771692
Which statement is supported by Kepler's laws?
O The closer a planet is to the Sun, the faster it moves.
O The farther a planet is from the Sun, the faster it moves.
O As a planet moves away from the Sun, its gravitational force increases.
O As a planet moves away from the Sun, its gravitational force remains the same.
Answer:
A. The closer a planet is to the Sun, the faster it moves.
Explanation:
According to this law, planets move around the sun in elliptical orbits. An imaginary lines drawn from the center of Sun to center of planets will sweep equal area in equal time interval.
Answer option B,C&D is incorrect because planets that are far away from the Sun take more time to move all around the Sun and experience less gravitational force and move slower than those near the Sun.
Answer:
a
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