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Problem: To conserve energy, a certain room's temperature is kept at 60.0°F in the winter and 80.0°F in the summer.
A. What are these temperatures on the Celsius scale?
I want you to explain the physics in this problem.
A convex mirror has a focal length of -30 cm. Find the magnification produced by the mirror when the object distance is 8 cm
A dog running in the +y-direction at 7.0 m/s hears its owner call from behind, Compute the dog's change in velocity
the sun is 1.4x109 meters in diameter and it is 1.5x1011 meters from earth. a pinhole in the leaf of a tree forms an
in what direction must storm now sail to reach. The car is uniformly accelerated during the entire time. What net force is exerted on it.
An elevator with a mass 2000kg rises with an acceleration of 1m/s^2. What is the tension in the supporting cables
The plates of a capacitor are connected to a battery and accumulate charge. Explain what will happen to the charge if the wires are then connected to each other
A basketball of mass 270 g and radius 17 cm rolls with an initial speed of 2.5 m/s. What distance along the ramp will the ball travel before it comes to a stop
A woman is standing in the ocean, and she notices that after a wave crest passes by, five more crests pass in a time of 57.1 s. The distance among two successive crests is 36.4 m. What are the wave's (a) period, (b) speed, (c) wavelength, and (d) fre..
One displacement vector A has magnitude of 2.78 km and point due north. Another displacement vector B has a magnitude of 7.40 km and also points due north. Provide diagrams and calculate the magnitude and direction of A+B, B-A, A-B.
A cylinder containing an ideal gas has a volume of 2.0 m3 and apressure of 1.0 × 105 Pa at a temperature of 300 K. Thecylinder is placed against a metal block that is maintained at 900K and the gas expands as the pressure remains constant until th..
A concave mirror has a radius of curvature of 32.0cm. What is its focal length?
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
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