3. A body is fired up a smooth inclined plan with a velocity of 8.0 m/s. If the plane is inclined at 30° to the horizontal, calculate the distance covered and the time taken (g = 10 m/s2). [A] 3.14 m, 1.05 sec [B] 64.00 m, 5.00 sec (C) 6.40 m,
1.60 sec (D) 12.80 m, 10.00 sec​

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative