Which of the following statements is true? -the sun will eventually die, but it will not affect earth.
- the sun uses its own matter to create light and heat.
-the sun is a rare g2 star, which means it is extremely bright.
-the photosphere is only visible during a total solar eclipse.

What is the most useful equation for electric power?

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.