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Questions and Answers
What is the acceleration of an object moving at a constant velocity of 23.5 m/s over 15 seconds?
What is the acceleration of an object moving at a constant velocity of 23.5 m/s over 15 seconds?
- 0 m/s² (correct)
- 1.57 m/s²
- 3.13 m/s²
- None of the above
A car accelerates from 0 to 60 km/hr in 10 seconds. What is its acceleration in m/s²?
A car accelerates from 0 to 60 km/hr in 10 seconds. What is its acceleration in m/s²?
- 2.22 m/s²
- 4.44 m/s²
- 1.67 m/s² (correct)
- 3.33 m/s²
What is the final velocity of an airplane that accelerates at 1.54 m/s² for 30 seconds, starting from rest?
What is the final velocity of an airplane that accelerates at 1.54 m/s² for 30 seconds, starting from rest?
- 46.6 m/s
- 46.2 m/s (correct)
- 48.2 m/s
- 47.0 m/s
If a car accelerates from 55 mi/hr to 60 mi/hr in 10 seconds, what is its acceleration in m/s²?
If a car accelerates from 55 mi/hr to 60 mi/hr in 10 seconds, what is its acceleration in m/s²?
What is the acceleration of a Lamborghini that accelerates from 0 to 27.8 m/s in 3.40 seconds?
What is the acceleration of a Lamborghini that accelerates from 0 to 27.8 m/s in 3.40 seconds?
A ball is hit in the opposite direction at 134 m/s. What is its acceleration in the vertical direction?
A ball is hit in the opposite direction at 134 m/s. What is its acceleration in the vertical direction?
Who proposed the 'Corpuscular Theory of Light' and explained the refraction of light in his book 'Opticks'?
Who proposed the 'Corpuscular Theory of Light' and explained the refraction of light in his book 'Opticks'?
What was observed by Thomas Young when light was shined between two adjacent slits?
What was observed by Thomas Young when light was shined between two adjacent slits?
What is the primary reason for the Earth's seasons?
What is the primary reason for the Earth's seasons?
What was the significance of Galileo's observation of sunspots?
What was the significance of Galileo's observation of sunspots?
What is the name of the substance that Rene Descartes believed light to be a disturbance of?
What is the name of the substance that Rene Descartes believed light to be a disturbance of?
What was the main contribution of Johannes Kepler to astronomy?
What was the main contribution of Johannes Kepler to astronomy?
Who presented a law of reflection and discussed the propagation of light rays in straight lines?
Who presented a law of reflection and discussed the propagation of light rays in straight lines?
What was the outcome of Thomas Young's double-slit experiment?
What was the outcome of Thomas Young's double-slit experiment?
What was the primary reason for the retrograde motion of planets?
What was the primary reason for the retrograde motion of planets?
Who believed that light is emitted by sources other than the eye and that vision is produced when light reflects off objects and enters the eye?
Who believed that light is emitted by sources other than the eye and that vision is produced when light reflects off objects and enters the eye?
What was the significance of Copernicus' model?
What was the significance of Copernicus' model?
What was the main contribution of Galileo's telescope to astronomy?
What was the main contribution of Galileo's telescope to astronomy?
What is the result when the first ball comes to rest and the second ball moves in the opposite direction?
What is the result when the first ball comes to rest and the second ball moves in the opposite direction?
What is the formula to calculate distance?
What is the formula to calculate distance?
What is the difference between speed and velocity?
What is the difference between speed and velocity?
What is the unit of velocity?
What is the unit of velocity?
What does the average speed of an object depend on?
What does the average speed of an object depend on?
What is the average speed of the Pacific porpoise in the example?
What is the average speed of the Pacific porpoise in the example?
What type of radiation is mostly absorbed by the ozone layer?
What type of radiation is mostly absorbed by the ozone layer?
What happens when the angle of incidence is equal to the angle of reflection?
What happens when the angle of incidence is equal to the angle of reflection?
What is the result of two light waves meeting halfway, with one crest and one trough?
What is the result of two light waves meeting halfway, with one crest and one trough?
What is the main reason for the bending of light as it passes from one medium to another?
What is the main reason for the bending of light as it passes from one medium to another?
What is the term for the bouncing of light off a rough surface?
What is the term for the bouncing of light off a rough surface?
What is the term for the phenomenon where light waves meet and create an even brighter or darker kind of light?
What is the term for the phenomenon where light waves meet and create an even brighter or darker kind of light?
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