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What do you understand by the term magnetic field? Where did it used? What is the physical significance of magnetic field in our daily? Please explain in a well manner
An object has a kinetic energy of 237 J and a momentum of magnitude 29.3 kg·m/s. Find the speed and the mass of the object
A ferryboat sails between two towns directly opposite each other on a river. if the boat sails at 15 km/h relative to the water, and if the current flows at 6.3 km/h, at what angle should the boad head?
A resistor has a color coded value of 1500 ohms. If possible error on the color coded value is 5 percent, find the possible ranges in the value of the resistance
A 78kg astronaut is floating in space, he throws a 600 gram wrench at 20 m/s in the direction away from the space station so that he can begin floating towards space. How fast will he be traveling?
A soap film formed in a loop of wire is, because of its weight, not exactly uniform in thickness, but wedge-shaped in cross section. When the film is illuminated with 546 nm light, one sees four interference fringes spread over a distance of 2.0 c..
The average depth of oceans is about 4km, the oceans cover abou 70% of earths suface. Make an order of nagnitude estimate of the waters volune in he ocean.
A camera utilized by a professional photographer to shoot portraits has a focal length of 27.0 cm. The photographer takes a portrait of a person 1.70 m in front of the camera. Where is the image formed, and what is the lateral magnification?
the earth has an angular speed of 7.272nbsp 10-5 rads in its rotation. find the new angular speed if an asteroid m
A 913-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car during this time
Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high- many times higher than the wind speed. At the tip of the blade what is the speed
wo small metallic spheres, each of mass m = 0.220 g, are suspended as pendulums by light strings of length L, How long are the strings
A juniper-wood plank measuring 0.15 ft by 1 ft by 17 ft is totally submerged in water. What is its weight? (Ib) What is the buoyant force acting on it? (Ib) What are the size and the direction of the net force on it? (Ib)
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