Physics, 02.12.2019 06:31 BIKRAMlawati9684
We are given that a force of 40 n is exerted at an angle of 42°. therefore, the force vector f can be represented as the hypotenuse of a right triangle with an acute angle 42°. the length of the hypotenuse would be
|f| =
.
Answers: 1
Physics, 21.06.2019 14:40
A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
Answers: 1
Physics, 21.06.2019 16:30
Which of the following would not be taken into consideration when describing the quality of a sound
Answers: 2
Physics, 22.06.2019 19:30
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
Answers: 1
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
We are given that a force of 40 n is exerted at an angle of 42°. therefore, the force vector f can b...
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