Physics, 31.08.2019 01:10 whocares1234
An ant is 15 cm from the convex mirror of focal length 10 cm. if the ant starts to move towards the mirror with 0.5 m/s. calculate the velocity of the image.
Answers: 3
Physics, 22.06.2019 19:30
Another word for electromagnetic energy is a. heat b. force c. matter d. radiation
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Physics, 22.06.2019 20:30
Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600
Answers: 2
Physics, 22.06.2019 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
Physics, 22.06.2019 23:00
Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.
Answers: 1
An ant is 15 cm from the convex mirror of focal length 10 cm. if the ant starts to move towards the...
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