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Short Answer problems (8 of 10) (4 pts) 8 points each k 9.0 10'N-m /c R...
SHORT PROBLEMS (5 POINTS EACH) 1) A spring has spring constant k 200 N/m and is...
SHORT PROBLEMS (5 POINTS EACH) 1) A spring has spring constant k 200 N/m and is oriented vertically. A 4 kg mass is gently placed on top of it, How far is the spring compressed?
Three charges of magnitude 9.0 x 10-4 C each are located at x = 1.0 m,...
Three charges of magnitude 9.0 x 10-4 C each are located at x = 1.0 m, y = 0.0 m, at x = 0.0 m, y = 0.0 m, and at x = -1.0 m, y = 0.0 m. The one in the middle is negative, while the other two are positive. What is the net Coulombic force exerted by them on a negative 9.0 x 10-5 C charge located at x = 0.0 m, y = 2.0 m? (The...
Part II -Short problems (20 pts total/10 pts each) 1) A motor M pulls on the...
Part II -Short problems (20 pts total/10 pts each) 1) A motor M pulls on the cable with a force of F, which has a magnitude that varies as shown on the graph. The 20 kg crate is originally resting on the floor such that the cable tension is zero at the instant the motor is turned on. Determine the speed of the crate when t = 6 sec. F (N) 25아 r (s)
help resolve 5. (10 pts.) The temperature of a copper wire (a = 3.9 x 10-'K')...
help resolve
5. (10 pts.) The temperature of a copper wire (a = 3.9 x 10-'K') with a resistance of 100 is increased by 25 K (a) The resistance will increase or decrease? (b) What is the resistance after temperature increased by 25 K? 6. (10 pts.) A copper wire has a radius 0.5 mm and free electron density 8.5 x 10 and it carries current 1.8 A. Calculate the current density and the drift velocity of the copper wire....
Problem 3 - Electric force and Electric field A charge Q1 = +9uC is located at...
Problem 3 - Electric force and Electric field A charge Q1 = +9uC is located at the origin and a second charge Q2 = -4°C is placed at x = 8 m. a) [6 points) What will be the force (magnitude and direction) if you place a +16 C charge midway between the Qi and Q2? lu = 10-6, Coulomb's constant k = 9.0 x 10°N • m2/C2 b) [7 points] Calculate the net electric field (magnitude and direction) at...
Question 4 2 pts What is the electric potential, V, at a point that is r=0.66...
Question 4 2 pts What is the electric potential, V, at a point that is r=0.66 m away from a positive point charge q = 8.3x10C? Take the electrostatic constant, k = 9.0 x 10°Nm²/C2. Please round your answer to the nearest whole number. Equation: V kg 7
By what factor does the radius of the electron beam path (r) change if the current...
By what factor does the radius of the electron beam path (r) change if the current through the Helmholtz coil (I) is doubled? Hint: Use e/m = 2V (5/4)3 a2/(N 4o Ir)2. the radius of the electron beam path increases by a factor of 2 the radius of the electron beam path increases by a factor of 4 the radius of the electron beam path decreases by a factor of the radius of the electron beam path decreases by a...
1. (20 pts.). In the circuit shown in the diagram R 10 m,Ra 0.02 , R...
1. (20 pts.). In the circuit shown in the diagram R 10 m,Ra 0.02 , R 01 , Rs -30 mt Rs 40 min. Rs 50 min. R7 60 min, and ε 100 V. A) (10 pts.) find the equivalent resistance for this circuit; B) (5 pts.) find the voltage and the current for the resistor R C) (5 pts.) find the electric power in the resistor Rr. 2. (20 pts.). In the cir rcuit shown in the diagram, find...
Constants & Formula Sheet Charge of an Electron 1.6 x 101c Coulomb's Constant&V(48.9910 N-m'/c Permittivity of...
Constants & Formula Sheet Charge of an Electron 1.6 x 101c Coulomb's Constant&V(48.9910 N-m'/c Permittivity of free spacce for electricity-e,-8 85-10· /(N-m) Permittivity of free space for magnetism A.-4x × 10" T . m/A & Charge of a Proton 1.6x 10c V = IR Ar -는슷 τ= NIA B sin φ 2 R -2NLC 5) For the circuit shown in the figure below, Use Kirchhoffs Rules to write the expression for: a) Junction rule at a 。20 pts) b) Loop...
Problem 4 (30 points) If D= (2y + 2)ax + 4.ryay + ra, C/m², find (a)...
Problem 4 (30 points) If D= (2y + 2)ax + 4.ryay + ra, C/m², find (a) (10 points) The volume charge density at (-1,0, 3) (b) (10 points) The flux through the cube defined by 0 <r <1,0 Sy<1,02<1 (c) (10 points) The total charge enclosed by the cube
SHORT PROBLEMS (5 POINTS EACH) 1) A spring has spring constant k 200 N/m and is oriented vertically. A 4 kg mass is gently placed on top of it, How far is the spring compressed?
Part II -Short problems (20 pts total/10 pts each) 1) A motor M pulls on the cable with a force of F, which has a magnitude that varies as shown on the graph. The 20 kg crate is originally resting on the floor such that the cable tension is zero at the instant the motor is turned on. Determine the speed of the crate when t = 6 sec. F (N) 25아 r (s)
help resolve
5. (10 pts.) The temperature of a copper wire (a = 3.9 x 10-'K') with a resistance of 100 is increased by 25 K (a) The resistance will increase or decrease? (b) What is the resistance after temperature increased by 25 K? 6. (10 pts.) A copper wire has a radius 0.5 mm and free electron density 8.5 x 10 and it carries current 1.8 A. Calculate the current density and the drift velocity of the copper wire....
Problem 3 - Electric force and Electric field A charge Q1 = +9uC is located at the origin and a second charge Q2 = -4°C is placed at x = 8 m. a) [6 points) What will be the force (magnitude and direction) if you place a +16 C charge midway between the Qi and Q2? lu = 10-6, Coulomb's constant k = 9.0 x 10°N • m2/C2 b) [7 points] Calculate the net electric field (magnitude and direction) at...
Question 4 2 pts What is the electric potential, V, at a point that is r=0.66 m away from a positive point charge q = 8.3x10C? Take the electrostatic constant, k = 9.0 x 10°Nm²/C2. Please round your answer to the nearest whole number. Equation: V kg 7
By what factor does the radius of the electron beam path (r) change if the current through the Helmholtz coil (I) is doubled? Hint: Use e/m = 2V (5/4)3 a2/(N 4o Ir)2. the radius of the electron beam path increases by a factor of 2 the radius of the electron beam path increases by a factor of 4 the radius of the electron beam path decreases by a factor of the radius of the electron beam path decreases by a...
1. (20 pts.). In the circuit shown in the diagram R 10 m,Ra 0.02 , R 01 , Rs -30 mt Rs 40 min. Rs 50 min. R7 60 min, and ε 100 V. A) (10 pts.) find the equivalent resistance for this circuit; B) (5 pts.) find the voltage and the current for the resistor R C) (5 pts.) find the electric power in the resistor Rr. 2. (20 pts.). In the cir rcuit shown in the diagram, find...
Constants & Formula Sheet Charge of an Electron 1.6 x 101c Coulomb's Constant&V(48.9910 N-m'/c Permittivity of free spacce for electricity-e,-8 85-10· /(N-m) Permittivity of free space for magnetism A.-4x × 10" T . m/A & Charge of a Proton 1.6x 10c V = IR Ar -는슷 τ= NIA B sin φ 2 R -2NLC 5) For the circuit shown in the figure below, Use Kirchhoffs Rules to write the expression for: a) Junction rule at a 。20 pts) b) Loop...
Problem 4 (30 points) If D= (2y + 2)ax + 4.ryay + ra, C/m², find (a) (10 points) The volume charge density at (-1,0, 3) (b) (10 points) The flux through the cube defined by 0 <r <1,0 Sy<1,02<1 (c) (10 points) The total charge enclosed by the cube
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