Is it true that any marking on an angle means that the angle measure 90 degrees?

Select the correct answer. Brian is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which of these devices should he use? A. battery B. buzzer C. motor D. switch

Add the following displacement vectors: 12 m south and 15 m 55° E of N?

Is gravity constant over the entire earth surface. Explain why?

32. How much work is done pushing an 80 N box 2 m across ue surtout What work is done? a. 40 J c. 160 J b. 20 J d. 240 J

Any object that is given any initial velocity and which follows a path due to gravitational force acting on it and by the frictional resistance of the atmosphere is called?

Order the colors of the rainbow starting with the color that is bent the least to the color that is bent the most (when it passes through a prism). Question 1 options: yellow blue indigo orange green red violet

Find the unit vector that has the same direction as the vector v = _12j

Why isn't the size of something considered a physical property?

A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 1.

A car going at 30 m/s undergoes an acceleration of 2 m / (s^2) for 4 seconds. how far did it travel while accelerating?