Physics 1100

Test #5

April 2002

1. The charges are Q₁ = -2.00 μC, Q₂ = 6.00 μC, and Q₃ = 3.00 μC.
   (a) Find the net electric field (magnitude and direction) at point A on the graph.
   (b) If a charge q = –2.00 μC is placed at point A, what force (magnitude and direction) will it experience?
   (c) If a charge q = 6.00 μC is placed at point A, what force (magnitude and direction) will it experience?
   

2. A block and ball of mass M = 0.250 kg is placed a 27.0º incline. The coefficients of friction between the block and the incline are μ_s = 0.21 and μ_k = 0.13. The ball is charged, Q = -600.0 μC, and is solidly attached to the block. There is a horizontal electric field E = 2000 N/C at the incline. Find the acceleration of the block.
   

3. Five resistors are connected to a battery as shown in the diagram below. The five resistors are R₁= 3.00 Ω, R₂ = 6.00 Ω, R₃ = 7.00 Ω, R₄ = 10.00 Ω, and R₅ = 15.00 Ω. The battery supplies ε = 3.00 Volts.
   (a) Find the equivalent resistance of the circuit.
   (b) Find the current through each resistor.
   (c) Find the voltage drop over each resistor.
   (d) Find the power dissipated by each resistor.
   (e) Find the total of all the power dissipated by the resistors.
   (f) Find the power supplied by the battery.
   Put your results in a table!

		sin(2θ) = 2sin(θ)cos(θ)
	G = 6.672 × 10-11 N-m2/kg2
W=FLcos(θ)	K=½mv2	U = mgh
Wnc = Ef – Ei	E = K + U
	k = 8.99 × 109 N-m2/C2
V=IR	P= IV

Quadratic Equation
Given the formula , the solutions are

Questions? mike.coombes@kwantlen.ca