I need help guys! please!
Question:
A girl sits on a tire swing and is pushed in a circular m...
I need help guys! please!
Question:
A girl sits on a tire swing and is pushed in a circular motion by her father. Her tangential speed is 2.8 m/s and the girl travels in a circle with a diameter of 4.0 m. What is the girl's centripetal acceleration?
1.4 m/s 2
0.7 m/s 2
3.9 m/s 2
4.0 m/s 2
Answers: 3
Physics, 21.06.2019 22:30, ceceshelby646
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
Physics, 22.06.2019 05:10, linnialmira
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
Answers: 2
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