A 0.5 kg block B slides without friction inside a slot cut in arm OA which rotates in a vertical plane. the rod has a constant angular acceleration theta = 10 rad/s^2. knowing that when theta = 45 and r = 0.8 m the velocity of the block is zero, determine at this instant (a) the force exerted on the block by the arm, (b) the relative acceleration of the block with respect to the arm

In an experiment, how can i change human errors? be specific.

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.