Consider a small, spherical particle of radius r located in space a distance R = 3.90 1011 m from the Sun. Assume the particle has a perfectly absorbing surface and a mass density of rho = 1.40 g/cm3. Use S = 220 W/m2 as the value of the solar intensity at the location of the particle. Calculate the value of r for which the particle is in equilibrium between the gravitational force and the force exerted by solar radiation.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.