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Get college assignment help at uniessay writers A rectangular current loop is loacted near a long, straight wire that carries a current of Iw = 12 A (see the drawing). The curent in the loop is IL = 30 A. Determine the magnitude of the net magnetic force that acts on the loop. N Figure is attached.

A sealed cubical container 22.0 cm on a side contains three times Avogadro’s number of molecules at a temperature of 19.0°C. Find the force exerted by the gas on one of the walls of the container.

Suppose a crate of mass 5.4 kg is placed on the plank in the figure below at a distance 5.8 m from the left end. Find the forces exerted by the two supports on the plank

Suppose a crate of mass 4.6 kg is placed on the plank in the figure below at a distance 5.1 m from the left end. Find the forces exerted by the two supports on the plank. (The mass of the plank is 12.0 kg.) Left Support ______N Right Support _____N _______________________________________________ ^^

A long horizontal wire carries a current of = 42 . A second wire, made of 1.00–diameter copper wire and parallel to the first, is kept in suspension magnetically 5.0 below

Block in the figure weighs 1.70 and block weighs 3.40 . The coefficient of kinetic friction between all surfaces is 0.500. Find the magnitude of the horizontal force necessary to drag block to the left at a constant speed of 2.00 if rests on and moves with it (figure a).

1. A load is suspended by cable from a beam supported by another cable as shown. The angle between the beam and the horizontal is 66 degrees and the angle between the supporting cable and the horizontal is 39 degrees. a. What are the angles between the cable supporting the load and the beam and between the cable supporting the beam and the beam? b. What are the 2 equations gotten by Newton’s 2nd law (using f for the horizontal component force at the surface and N for the vertical component force at the surface)? c. What is the torque equation (using L for the length of the beam)? d. If the mass of the beam is 200 kg and the mass of the load is 1000 kg, what are all forces on the beam

Two lifeguards pull on ropes attatched to a raft. If they pull in the same direction, the raft experiences a net external force of 375 N to the right. If they pull in opposite directions, the raft experiences a net external force of 109 N to the left. A)Draw a free body diagram for each situation and find the magnitude of the larger of the two individual forces in units of N. B)Find the magnitude of the smaller of the individual forces in units of N.

Hakeem throws a 9.0 g ball straight down from a height of 2.0 m. The ball strikes the floor at a speed of 7.8 m/s. What was the initial speed of the ball? Assume that air resistance is negligible.

One end of a horizontal string of linear density 5.6×10−4 is attached to a small-amplitude mechanical 280- oscillator. The string passes over a pulley, a distance away, and weights are hung from this end, the figure . 1. What mass must be hung from this end of the string to produce one loop of a standing wave? Assume the string at the oscillator is a node, which is nearly true. 2. What mass must be hung from this end of the string to produce two loops of a standing wave?

Get college assignment help at uniessay writers Two horizontal forces, 211 N and 150 N, are exerted on a canoe. If the these forces are applied in the same directions, find the net horizontal force on the crate.

The pulley system shown in the figure is used to lift a 36 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 2.6 m/s2. 1.Determine the force .

A 40.0 rock slides on a rough horizontal surface at 7.00 and eventually stops due to friction. The coefficient of kinetic friction between the rock and the surface is 0.300. What average thermal power is produced as the rock stops?

A 94- astronaut and a 1200- satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25 directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with the shuttle.

A bicycle wheel has an initial angular velocity of 7.9 rad/s. After turning through one-half of a revolution, the angular velocity is reduced to 1.6 rad/s. If the angular acceleration of the wheel is constant during the motion, how long will it take the wheel to make the one-half revolution? Please provide step-by-step method to solving the problem.

In Fig. 9.5, a rope is wrapped around a wheel of radius R = 2.0 meters. The wheel is mounted with frictionless bearings on an axle through its center. A block of mass 14 kg is suspended from the end of the rope. When the system is released from rest it is observed that the block descends 10 meters in 2.0 seconds. What is the moment of inertia of the wheel? Please provide step-by-step method to solving the problem. attached is the figure.

A futuristic design for a car is to have a large disklike flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of 0.50 m and can rotate up to 240 rev/s. Assuming all of this stored kinetic energy could be transferred to the linear velocity of the 2400-kg car, find the maximum attainable speed of the car. Please provide step-by-step method to solving the problem. Attached is the figure.

A rectangular block of ice 11 m on each side and 1.8 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. How high does the top of the ice block float above the water level? b) How many penguins of mass 22 kg each can stand on the ice block before they get their feet wet?

A ball on a porch rolls 60 {rm cm} to the porch’s edge, drops 40 {rm cm}, continues rolling on the grass, and eventually stops 80 {rm cm} from the porch’s edge.

A charge q1 = 18.0 µC moves with a speed of 4.50 103 m/s perpendicular to a uniform magnetic field. The charge experiences a magnetic force of 7.41 10-3 N. A second charge q2 = 4.00 µC travels at an angle of 40.0° with respect to the same magnetic field and experiences a 1.80 10-3-N force. Determine (a) the magnitude of the magnetic field and T (b) the speed of q2. m/s

Due to friction with the air, an airplane has acquired a net charge of 1.70 10-5 C. The plane moves with a speed of 2.90 102 m/s at an angle θ with respect to the earth’s magnetic field, the magnitude of which is 5.00 10-5 T. The magnetic force on the airplane has a magnitude of 2.30 10-7 N. Find the angle θ. (There are two possible angles.) ° (smaller angle) ° (larger angle)

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November 3, 2019