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Physics
Page 80
Questions (146,982)
Which statement best describes work?(1 point)
Responses Work is done whenever a force acts on an object. Work is done whenever a
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You drop a tennis ball from a building, what Is the force acting on the tennis ball if it weighs 0.06 kg? Acceleration will be
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Below is a picture of four animals and their common names. In the space below, write the name of the animal that would have the
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13. Gravitational attraction is defined as "An attractive force between all objects with mass in our universe." Since humans
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A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the Earth. What are these rays
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What type of quantity is momentum?
Group of answer choices It is a scalar quantity because it involves magnitude only. It is a
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Ilikecookies2009
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A group of students sets up an electric circuit with wires, a battery, and a light bulb. Why is their circuit called a direct
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In which fundamental interaction can matter transform into a different type of matter
A) strong B) gravity C) weak nuclear force
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Which of the following objects is most likely to have the greatest air resistance?
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A group of students sets up an electric circuit with wires, a battery, and a light bulb. Why is their circuit called a direct
4 answers
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How do scientists support claims about different models of light?(1 point)
Responses They use reasoning to prove which model is
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Nuclear reactions can be written out in equation form with information about the nuclei that take place in the fusion reaction
0 answers
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hatemaths
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In 1–2 sentences, explain how to make an electromagnet.(2 points)
And write like a fourth grader
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asked by
u dont know me
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A feather and a bowling ball are in free fall when...
a gravity is the only force acting on them. b gravity and air resistance
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e
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A cylindrical glass 7 cm in diameter and 10 cm tall is filled with water to a height of 9 cm.
If a ball 5 cm in diameter is
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In a nuclear reaction, which is the same before and after the change?(1 point)
Responses the types of atoms the types of atoms
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Which option would be an appropriate model of nuclear fusion?(1 point)
Responses adding a drop of water to a glass of water
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Which statement best describes the process of alpha decay?(1 point)
Responses An unstable nucleus rearranges its particles and
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Which option correctly compares beta decay(a particle) and gamma decay (pure energy)?(1 point)
Responses Beta decay only reduces
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Use the equation to answer the prompt.
106 C→ 105 B + 0+1 e A student claims that the equation models beta-minus decay because
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Which statement best describes the process of alpha decay?(1 point)
Responses An unstable nucleus releases an electron. An
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How does a flashlight illustrate the Law of Conservation of Energy?
• It is an electric circuit through which electrical energy
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Use the image of a person lifting a boulder with a lever to answer the question.
An illustration shows a man using a stick and a
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The vertical displacement of the wave is measured from the
Group of answer choices equilibrium to the crest and is called the
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21-25. A cannon is fired from the top of a cliff that is 50 meters high above the ground. The cannonball is launched with an
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The speed of a wave is 65 m/sec. If the wavelength of the wave is 0.8 meters, what is the frequency of the wave? (MUST INCLUDE
3 answers
asked by
sunrise_lover09
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Have any idea about a new instrument that can tell you how sound energy is transferred by waves? My teacher wants me to build
3 answers
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sunrise_lover09
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What causes the spinning rotor to spin?(1 point) Responses A turbine A turbine The transmission line The transmission line A
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If cans of soda or place in the chest full of ice, does the coldness from the ice go into the soda or does the heat from the
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Mrs. Burke’s physics class has 109
students, classified by academic year and major, as illustrated in the table. Mrs. Burke
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● How does an object change motion?
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math man
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Two samples of water are prepared, one with red food coloring and one with blue. When carefully combined, the red-colored water
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A student fills a large container with cold water. He fills another, smaller container with hot water and red food coloring, and
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Which statement describes the difference between mechanical and electromagnetic waves
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How do electrons flow through an electric circuit?(1 point)
Responses The electrons flow out of the negative end of the battery,
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Potato
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Shelly wants to find the speed that her dog can run. What should Shelly do?
* 1 point measure the time the dog runs measure the
1 answer
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ur mum
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The displacement of a particle with a mass of 325 g depends on time and is described by the function
x(t) = -6.0t3 + 4.0t2 - 13.
1 answer
asked by
Banya
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A shot-putter puts a shot (weight =
71.1 N) that leaves his hand at a distance of 1.52 m above the ground. Find the work done by
1 answer
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Banya
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A gardener pushes a lawn roller through a distance of 20 m. If he applies a force of 20 N in a direction inclined at 60° to the
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Banya
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Two forces act on a 4.5 kg block resting on a frictionless surface as shown in the Figure. What is the magnitude of the
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Banya
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Equal forces that do not cause a change in an object’s motion
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you isn't getting my name
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Unequal forces that cause a change in an object’s motion
1 answer
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you isn't getting my name
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A student used a video camera to record another student dropping a marble through water in a graduated cylinder. The students
1 answer
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you isn't getting my name
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In a vacuum, all electromagnetic waves have the same
: Responses amplitude. amplitude. speed. speed. wavelength. wavelength.
1 answer
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Marissa is learning about the unique properties of waves. She has learned that whenever the wavelength of a wave increases, the
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A gas expands from I to F in the figure.
The energy added to the gas by heat is 468 J when the gas goes from I to F along the
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What causes light to slow down?
a moving into a less adhesive medium b moving into a denser medium c moving into a lighter medium
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~[Mocha]~
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Why does white light separate into different colors?
Responses dispersion dispersion magnification magnification refraction
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~[Mocha]~
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Which of the following is true of frequency and volume?
Responses The frequency increases as the volume of sound increases. The
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~[Mocha]~
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rf eawdcx
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