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One end of a brass bar is maintained at 298°C, while the other end is kept at a constant but lower temperature. The cross-sectional area of the bar is 3.00 10-4 m2. Because of insulation, there is negligible heat loss through the sides of the bar. Heat flows through the bar, however, at the rate of 2.5 J/s. What is the temperature of the bar at a point 0.24 m from the hot end?
q1. a proton is moving at 2.00times105 ms and begins to circle at a radius of 5.00e-3 m. what is the strength of the
How long could the rocket hover just above the earth's surface and sHOW THE VELOCITY OF THE PARTICLE ALFA IS RHO ALFA OMEGA in the phi direction.
the magnetic field amplitude of an electromagnetic wave is 8.5E-7 T. Calculate the ampitude of the electric field if the wave is travelling in Air
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. determine the length of each side of the cube
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. compute the radius of the geostationary orbit for this neutron star?
A scaffold of mass 43 kg and length 7.0 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
A light, rigid rod of length l = 1.00 m joins two particles, with masses m1 = 4.00 kg and m2 = 3.00 kg, at its ends. Determine the angular momentum of the system
questiona sledge loaded with bricks has a total mass of 17.3 kg and is pulled at constant speed by a rope inclined at
Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest
Assume that light of a single color, rather than white light, passes through two slits 0.50 mm apart, determine the light's wavelength
a 1.2-m-long steel rod with a diameter of 0.50 cm hangs vertically from the ceiling. By how much does the rod stretch
question1two metal balls a and b of negligible radius are floating at rest on space station freedom between two metal
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