3. Which of the circuits has the lowest equivalent resistance?

Q: Problem 2: A 1.05-kg mass oscillates according to the equation x(t)=0.59 cos(8.5t), where the…

A: Given data *The given mass is m = 1.05 kg *The given position is x(t) = 0.59 cos (8.5t)

Q: Problem 2: You have a spring with a spring constant 3600 N/m. Part (a) If you want to store 135 J of…

A:

Q: Problem 5: A merry-go-round at an amusement park consists of an outer ring of horses and an inner…

A:

Q: Problem 1: During a circus act, a performer thrills the crowd by catching a cannon ball shot at him.…

A: Step 1 mass of ball = 9.5 kg speed of ball = 8.7 m/s mass of performer = 75 kg

Q: Part (a) If both are initially at rest and if the ice is frictionless, how far, in terms of the…

A: We know that: m1=81.5 kg u1=0 m/s The recoil velocity of the hockey player is v' m2=0.145 kg u2=0…

Q: 3. The tape sample below resulted from a uniformly accelerated object. What is its acceleration? ...…

A:

Q: Problem 1: Two children push on opposite sides of a door during play. Both push horizontally and…

A:

Q: 7. Assume that a 10.0 µF capacitor, a battery of emf &=12.0 V, and a voltmeter of 10.0 MS impedance…

A:

Q: Problem 4: A mass m at the end of a spring of spring constant k is undergoing simple harmonic…

A:

Q: 2. (I1) Buoyant forces are supplied by all fluids (liquid or gas), it's the mechanism that send high…

A: Recall FB=buoyant force =weight of displaced fluid.And mg is weight of submerged object. So mg is…

Q: Problem 7. Evaluate the electric field (magnitude) experienced by an electron in a hydrogen atom…

A: Radius of first orbit (r)= 5. 3×10−¹¹m Charge of electron (q1)= 1.6× 10-¹⁹ C Charge on nucleus of…

Q: Problem 5: Two pendula are shown in the figure. Each consists of a solid ball with uniform density…

A: Periodic motion is the motion in which the object repeats its motion after periodic intervals of…

Q: (d) Determine the current through each resistor for this parallel connection. What is the total…

A: For a parallel combination of registers Voltage remain the same in all resistances so current will…

Q: 6. The summit of a mountain, 2450 m above base camp, is measured on a map to be 4580 m horizontally…

A: The vector quantity can be represented as,   A→=ai^+bj^+ck^ where, a is the component of the vector…

Q: Problem 3: Shown to the right is a block of mass m sitting on a ramp that makes an angle 0 with the…

A:

Q: Problem 4: A coal car of mass m, = 4274 kg is rolling down the tracks at a velocity of v; = 3.9 m/s…

A: Given, m1 = 4274 Kg v1 = 3.9 m/s m2 = 5503 Kg   (a) What is the momentum of the system in (kg.m)/s…

Q: Problem 3: A 60.0 kg skier with an initial speed of 17 m/s coasts up a 2.50 m high rise as shown in…

A:

Q: Two particles, A and B, are moving along the x-axis. Their position versus time is given by the…

A: given,

Q: planet with a period of T. The spaceship enters a geosynchronous orbit at a distance of R. R M Part…

A: Given:-  T=34 hours  The spaceship enters a geosynchronous orbit at a distance of R = 3.9 X 108   m…

Q: 5. An astronaut aims a flashlight toward the tail of his space- ship, which is traveling with a…

A: Given:  Astronaut aims light beam toward tail of spaceship Velocity of spaceship = 0.5 c

Q: 4. List 2 potential sources of errors in this experiment.

A: In this experiment many students are climbing up on the stairs and we are going to determine Power…

Q: Problem 4: Two blocks connected by a string are pulled across a horizontal surface by a force…

A: Given :                                               Mass of block-1, m1 = 1.5 kg…

Q: Suppose I have a current source of 1.0 Amperes flowing through each of the following coils. What is…

A:

Q: Problem 2: A yo-yo is made of two uniform disks, each of mass M and radius R, which are glued to a…

A: Please see the next step for solution:-

Q: Problem 5: A child of mass m= 29 kg slides down a slide of height h = 2.5 m without friction. Let…

A: Total mechanical energy of system is sum of kinetic energy and potential energy of system.…

Q: 5. A merry-go-round (diameter 4.2 m) is rotating freely with an angular velocity of 0.80 rad/s. Its…

A: 5) a) from Conservation of angular momentum               Iiwi = Ifwf  ⇒Iiwi = Ii+ 4mr2wf1360 ×…

Q: Problem 7: A box of mass m is initially at rest at the highest point of an inclined plane, which has…

A:

Q: An object is fired from the ground at 124.52ft/sec at an angel of 34.35deg. along +x axis. Calculate…

A:

Q: Consider the circuit in Figure 2. Where R1 = 1500, R2= 3502, R3 = 5500, and VB = 12V. Solve the…

A:

Q: Problem 1: In this problem we are going to compare the strength of the gravitational interaction…

A: We know that the expression for the universal law of gravitation is given as F=GMmr2 Here, M is the…

Q: Problem 3: Shown to the right is a block of mass m sitting on a ramp that makes an angle 0 with the…

A:

Q: 1. Above a plane inclined 15° is a cart with weight connects to a bucket with weight w₂. Assume that…

A: According to Newton's second law, the acceleration of an object is due to the net force acting on…

Q: Problem 4: You have been hired to design a family-friendly see-saw. Your design will feature a…

A: Given,M = 9 kgL = 2.1 kgx = 18 cm = 0.18 mm1= 23 kgm2 = 71 kg

Q: answer question 7

A:

Q: Problem 7: Two blocks, which can be modeled as point masses, are connected by a massless string…

A: Part A: The speed of block one is 3.571 m/s Explanation: The centripetal force of the massless…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.