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An observer moving at a speed of 0.795 c relative to a rod (Fig. P26.14) measures its length to be 2.00 m and sees its length to be oriented at 30.0 o with respect to the direction of motion.
A) What is the proper length of the rod?
B) What is the orientation angle in a reference frame moving with the rod?
Consider a planet that, given its albedo and distance from the sun, should have a surface temperature of 110 K, but instead has a surface temperature of 130 K because it has an internal source of heat. How much more energy is the planet emitting than..
A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve.
you need to store 25J of energy in the magnetic field of a solenoid. The solenoid hass 100 circular turns of diameter 5.0cm, What is the energy density inside the solenoid
An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4.00 cm.
In a period of 1.0 s, 5.0 x10^23 nitrogen molecules strike a wall of area 7.80 cm2. If the molecules move at 270 m/s and strike wall head on in a perfectly elastic collision, find the pressure exerted on the wall. (The mass of one N2 molecule is 4..
A 0.2kg aluminum plate, initially at 20C, slides down at a 15.00 m long surface, incline at a 30 degree angle to the horizontal. The force of kinetic friction exactly balances the component of gravity down the plane so that the plane.
Determine the magnitude of the total initial momentum of the two-block system. Find , the magnitude of the final velocity of the two-block system. What is the change in the system's kinetic energy due to the collision?.
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
A 6 kg box is held at rest by two ropes that form a 30 degree angle with the vertical. and external for F acts vertically downward on the box.
Coefficient of linear expansion for aluminium
Two equal forces act on the two different objects, one of which has a mass ten times as large as the other. Will the more massive object have the larger acceleration, an equal accelearation, or a smaller acceleration.
Explain how could he use technical, human and conceptual skills to maintain an environment that encourages innovation and professionalism among the virus hunters?
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