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a. What is the change in the temperature on Fahrenheit scale and on Kelvin scale, if a iron piece is heated from 30° to 90°C ?(a) 108°F, 60K(b) 100°F, 55K(c) 100°F, 65K(d) 60°F, 108K
b. What is the resistance of the wire at 30°C, if at 5°C, the resistance of same wire is 200 ti and at 10°C, the resistance is 200.2 £2 ?(a) 200 Ω(b) 201 Ω(c) 204 Ω(d) 195 Ω
The cord is then pulled from below, shortening the radius of the circle in which the block revolves to 0.10 . At this new distance, the speed of the block is observed to be 3.50. Explain by how much work was done by the person who pulled on the cor..
Doug hits a hockey puck, giving it an initial velcoity of 6.0 m/s. how far will the puck slide before stopping
A parallel circuit has a 15 ohm and 24 ohm bulb in each parallel branch and a 15 ohm resistor and 293 volt battery in series with the parallel bulbs. What is the current in the 15 ohm bulb, 24 ohm bulb, and 15 ohm resistor
The escape speed from the Earth is 1.12*104 m/s, so that a gas molecule travelling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from the Earth's gravitational field and be lost to the atmos..
A cylindrical volume of radius a is filled with charge of uniform density ρ. We want to know the potential energy per unit length of this cylinder of charge, that is, the work done per unit length in assembling it. Calculate this by building u..
The closest star to our solar system is Alpha Centauri, which is 4.30 light years away. How much time would elapse on a clock on the Earth
In a rotor ride, which is a large hollow cylinder that is rotated rapidly around its central axis, people are rotated at a high speed. What minimum speed must the cylinder have
An rms voltage of 24.5V with a frequency of 1.50kHz is applied to a 0.365 microF capacitor. What is the rms in this circuit
The equation of a transverse wave on a string is y =(2.0 mm) sin[(22m-1)x - (675s-1)t]. The tension in the stringis 10 N. Find the linear density of this string
the radii of curvature of the surfaces of a thin converging meniscus lens are r1 12.0 cm and r2 28.0 cm. the index
question when water freezes it expands about 8.73. what would be the pressure increase inside your automobile engine
a child operating a radio-controlled model car on a dock accidentally steers it off the edge. the cars displacement 0.9
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