Physics, 05.12.2019 02:31, sweetgigi2364
Acertain satellite orbiting earth has a speed of about 17,000 miles/hour. what is its approximate speed expressed to the correct number of significant figures in kilometers/second? one kilometer is about 0.62 mile, and there are 3,600 seconds in an hour.
a.
2.9 km/s
b.
7.6 km/s
c.
38,000,000 km/s
d.
99,000,000 km/s
Answers: 3
Physics, 22.06.2019 19:00, sanchez626
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Physics, 22.06.2019 20:30, nae467
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 23:10, Jgarciar541
Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity
Answers: 2
Physics, 23.06.2019 03:50, markusfloyd9192
Asimple electrochemical cell contains two electrodes.
Answers: 1
Acertain satellite orbiting earth has a speed of about 17,000 miles/hour. what is its approximate sp...
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