4.) Which of the following are acceptable measurements for velocity? Choose ALL that apply!*
a.) 12.98 m/s^2
b.) 1.32 m/s west
c.) 5.46 m/s
d.) 22.78 m/s north
e.) 45.6 m/s
f.) 2.13 m/s2 Downwards

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

Matter that emits no light at any wavelength is called