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At perihelion (closest approach to the sun), Mercury is 0.31 AU from the sun. Find how hot it gets on Mercury when the sun is directly overhead at perihelion. (On average, Mercury reflects 12 percent of incoming light back into space).
Particle X has a speed of 0.750c and a momentum of 5.78E-19kg*m/s. What is the total energy of the particle
A relief airplane is delivering a food package to a group of people stranded on a very small island. After a package is ejected from the plane, how long will it take for it to reach sea level from the time it is ejected
a tank having a volume of 0.100 m3 contains helium gas at 140 atm. how many balloons can the tank blow up if each
the binding energy for chromium metal is 4.37 ev. what wavelength of radiation must be used to eject electrons with a
A wheel (radius 0.6 m) is rolling on a horizontal surface with a center of mass acceleration of 0.7 m/s2. compute the friction force acting between the wheel and the surface
Calculate the mass of a solid gold rectanglar bar that has dimensions lwh = 4.20 cm x 12.0 cm x 30.0 cm. (the density of gold is 19.3x10^3 kg/m^3.)
A 38.8-cm diameter disk rotates with a constant angular acceleration of 2.60 rad/s2. It starts from rest at t = 0, and the line drawn from the center of the disk to the point P on the rim of the disk makes an angle of 57.3° with the positive x-axis a..
The figure shows ameter stick lying on the bottom of a 100-cm-long tank with its zeromark against the left edge. You look into the 50 cm tall tank at a30 degree angle, with your line of sight just grazing theupper left edge of the tank. What mark ..
When a high-power laser is used in the Earth's atmosphere, At this maximum intensity, what power can be delivered in a cylindrical beam of diameter 6.56 mm
A spherical source radiates sound uniformly in all directions. At a distance of 12 m, the sound intensity level is 10-4 W/m2. At what distance from the source is the intensity 10-6 W/m2? What power is radiated with this source?
a projectile is launched with an initial velocity of 80 ms at an angle of 30ordm above the horizontal. neglecting air
a small object of mass 3.46 g and charge -18.4 oc is suspended motionless above the ground when immersed in a uniform
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