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Temperatures are often measured with electrical resistance thermometers. Suppose that the resistance of such a resistance thermometer is 162 when its temperature is 16.0 °C. The wire is then immersed in a liquid, and the resistance drops to 109 . The temperature coefficient of resistivity of the thermometer resistance is ? =4.12 x 10-3 (C°)-1. What is the temperature of the liquid?
Explain why heat can only be transferred from a hot object to a cold object and not the other way around.
A toy spacecraft is launched directly upward. When toy reaches its highest point, a spring is released and the toy splits into two parts with masses of .c2 kg and .08 kg.
Two pipes of equal length are each open at one end. Each has the fundamental frequency of 500 Hz at 325 K. In one pipe the air temperature is increased to 330 K. If the two pipes are sounded together, what beat frequency results.
Coherent ligh of a wavelength 500nm passes through a narrow slit. In the single-slit diffraction pattern observed on a screen that is 4.0m from the slit, what will the width of the central maximum be
A copper container of mass 0.300kg contains 2.0 kg of lemonade at 33degree Celsius. What is the final temperature of the lemonade
a projectile of mass 0.212kg is shot from a cannon. The end of the cannon barrel is at height 6.4m, the initial velocity of the projectile is 9.3m/s. How long does it take the projectile to hit the ground
A rocket is fired from the ground but at 30m it runs out of fuel, How fast is it going when it comes back down to earth
During a lunar eclipse, the moon, earth, and sun all lie on the same line, with the Earth between the Moon and the sun. Calculate the force exerted on the Earth by the moon
Two small insulating spheres with radius 4.00×10-2 are separated by a large center-to-center distance of 0.595. One sphere is negatively charged, with net charge -2.40, and the other sphere is positively charged, with net charge 3.70. The charge i..
A cubical box with sides of length a#consists of five metal plates which are welded together and grounded, Find the potential everywhere inside the box
a 1200 kg car going 25m/s is brought to stop using its brakes. what is the change in temperature of the brakes and wheels
Aluminum is a very light metal with density of 2.7 g/cm^3. What is the weight in pounds of a solid sphere of aluminum of radius 50 cm
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