Physics, 21.09.2019 00:20, haydenoo72
The position vector of an object of mass 0.5 kg is given by r 2.0t2i+ 3.0tj m where t represents time. which one of the following statements is false when a time of t 2.0 s has elapsed. a) the object has moved a distance of 10 m. b) the momentum of the object is 41+1.5/ kg. m.s c) the kinetic energy of the object is 18 j d) the force on the object acts perpendicular to the direction of the unit vectorj e) the magnitude of the force acting on the object is 4 n
Answers: 3
Physics, 22.06.2019 11:30, alexandroperez13
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
Physics, 22.06.2019 18:10, tommyaberman
Which of the following statement is false ? a. batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c. do not stack batteries on top of each other)d. never put a damaged battery in a dumpster. i
Answers: 1
Physics, 22.06.2019 18:30, yclark98563p5z2gt
Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?
Answers: 3
Physics, 23.06.2019 01:00, diegovaldes25
What happens when the number of protons in an atom changes
Answers: 1
The position vector of an object of mass 0.5 kg is given by r 2.0t2i+ 3.0tj m where t represents tim...
Mathematics, 14.07.2020 23:01