Aball comes to a stop from an initial velocity of 0.600 m/s in a distance of only 2.00 mm.

(a) Find the acceleration in

2 m/s

and in multiples of

 

2

g g  9.80 m/s . (3 marks)

(b) Calculate the stopping time. (3 marks)

(c) If the stopping distance is 4.50 mm. What is the deceleration, expressed in multiples

of

g

? (3 marks)​

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel

What ia the energy of an object because of its potential and kinetic energies