When should the power switch be in the off position

Which of the following scientists won a noble prize of pioneering work in the study of the evolution of stars?

Which kind of star is most likely to spend the longest time on the main sequence? A.) A low-mass red star B.) A yellow star like the sun C.) a high-mass blue star D.) a bright white star

To meet the productivity goal, you must move 75 units of product per hour. You have moved 30 units of product in 30 minutes. How many units of product will you need to move per minute for the remainder of the hour to meet the productivity goal?

Objects that transmit most light, like a window, are a. opaque b. transparent c. translucent

A boy of mass 60 kg stands on a boat of mass 250 kg. This system is stationary. From the boat, the boy throws a rock of mass 1 kg into the water with a velocity of 10 m/s.

The idea that life could spring from nonliving matter is called? a. development. b. homostasis. c. spontaneous generation. d. evolution. 20 PTS

Physics how to calculate disintegration energy

Fast flowing water wears down the surface of a rock. This is an example of mechanical weathering chemical weathering erosion molecular weathering

What current would it need to carry in order to experience a very modest 1.0*10-3n⋅m torque?

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present