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A Carnot engine has an efficiency of 59 %> and performs 2.5 x 104 J of work in each cycle. How much heat does the engine extract from its heat source in each cycle?
How much heat is lost per unit area and unit time if the ambient air temperature is 0oC - How far does the water travel with your thumb over the end of the hose
A light bulb has a resistance of 170 ohm when operating with a potential difference of 170 V across it. What is the current in the light bulb
A flat circular coil with 105 turns, a radius of 4.00 x 10 neg 2nd m, and a resistance of 0.48Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil.
Discuss what it was about about blackbody radiation that classical physics was unable to explain. How did Planck's theory succeed?
What are the three most common types of radioactive decays? How do they differ? Also how many types of beta decays are there? Please describe them
A 499 g air-track glider attached to a spring withspring constant 13.4 N/m is sitting at rest on a frictionless airtrack. What is the period of the subsequent oscillations
An emf of 20 V maximum and frequency 18 Hz is applied to a24-mF capacitor. What is the maximum current in the circuit?
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on the ground underneath such a line
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
A mass is attached to a spring stretched 2.5 cm from equilibrium. What is the angular frequency of the oscillation
Two spheres with masses m1 = 820 kg and m2 = 830 kg are separated by 0.230 m. What is the net gravitational force from them on a 3.0 kg sphere located 0.161 m from m1 and 0.069 m from m2? Use a + sign if the direction is towards m2 and a - sign if..
The electric field in the copper wire of a household circuit is oriented along the wire, thus that it pushes electrons through the circuit. Find the magnitude of force that field exerts on electron
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