A 10 kg ball is thrown straight upward with a speed of 30 m/s. What is the maximum height the ball reaches?
A- 1.5 m B- 4.6 m
C- 15 m D- 46 m
PLEASEE HELP NOWEEE.

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

Explain why electric current cannot exist if a current doesn't have a voltage source.