Physics, 31.07.2019 21:30 schoolemailonlyno1
Physics ! all multiple choice! 1.) does an object moving in uniform circular motion have constant centripetal acceleration? true or false 2.) how do the angular velocities of three knots on a rope compare as it is swung around in a circle? how about their speeds? a.) the angular velocity and linear velocities are the same b.) the linear velocities are the same, the angular velocity increases as you move toward the outside dot c.) the angular velocity is the same, the linear velocities are fastest in the center d.) the angular velocity is the same, the linear velocities are fastest on the outside e.) both the linear and angular velocities increase as you move out 3.) an object travels with a constant speed in a circular path. the net force on the object is a.) zero b.) toward the center c.) away from the center d.) tangent to the object's path
Answers: 1
Physics, 22.06.2019 05:10
What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n
Answers: 1
Physics, 22.06.2019 17:30
Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.
Answers: 3
Physics, 23.06.2019 01:10
Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?
Answers: 1
Physics ! all multiple choice! 1.) does an object moving in uniform circular motion have constant...
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