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A) A physicist on a planet orbiting the star Zog measures the intensity of the radiation reaching her to be 1370 W/m^2. If the orbit of her planet is circular with a radius of 2.3e8 km, what is the luminosity of Zog?
B) The radius of Zog is 3.93 e8 m. What is its surface temperature?
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
A 2-kg block of ices slides frictionlessly down a plane inclined at 22° a distance of 2 m. What is the normal force on the block of ice
A 15-kg block rests on a level frictionless surface and its attached by a light string to a 5.0-kg hanging mass, What is the tension in the connecting string
A 130 g copper bowl contains 240 g of water, both at 20.0°C. How much energy (in calories) is transferred to the water as heat
four identical metallic objects carry the following charges 1.19 6.73 -4.26 and -9.98c. the objects are brought
What is the neA puck (mass m1 = 4.15 kg) slides on a frictionless table, What is the new speed of the puck, What is the change in the kinetic energy of the puck
A diffraction grating is made up of slits of width 290 nm with separation 910 nm. How many maxima are there in the full diffraction pattern
A 63-kg skier is going down a slope oriented 31° above the horizontal. Determine the pressure that each ski exerts on the snow
Suppose that the magnetic field has a magnitude of 0.130 T, the particle's speed is 6.0 multiplied by 106 m/s, and the radius of its path is 144.5 cm. Find the mass of the particle, given that its charge has a magnitude of 1.60 multiplied by 10?19 C...
A 5-kg fish swimming 1 m/s swallows an absentminded 1-kg fish swimming toward it at a speed that brings both fish to a halt immediately after lunch. What was the speed of the smaller fish
A solid, horizontal cylinder of mass 10.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the system
Suppose a tank contains 626 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa. The temperature is changed from 293.2 to 293.8 K. What is the increase in the internal energy of the neon
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