A very bright source of red light has much more energy than a dim source of blue light. which of these light sources has the best chance of ejecting electrons from a metal surface?

The idea that magma rises up at rift valleys and crust is being destroyed at trenches describes the theory of

A bullet of mass 0.017 kg traveling horizontally at a high speed of 290 m/s embeds itself in a block of mass 5 kg that is sitting at rest on a nearly frictionless surface.

How does energy cause change?

The filament in a light bulb uses 2.55 amps when the voltage is 175 volts. What is the resistance?

If the sound wave leaves the boulder and travels through the air, what would happen to the sound wave's speed?

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series