which of the following drives the movement of convection currents

A. pressure differences

B. density differences

C. volume differences

What is the dimention of kinetic energy

An ice cream truck is going 25m/s to East. It accelerates to 40m/s in the same direction over 3s. What is its acceleration

If solar radiation is 1130 w/m2, how many photons strike the leaf every second? assume three significant figures and an average wavelength of 504 nm for solar radiation. answers

At the particle level, the weakest of the fundamental forces is: gravity electromagnetic forces strong force weak force

Humans consume resources and produce waste. As the human population grows, global consumption of resources and waste production increases. The waste generated often collects in dumping grounds called landfills.

A cage containing male mosquitoes has a small earphone placed on top, through which the sound of a female mosquito is played. all the males immediately fly to the earphone and go through all of the steps of copulation.

The direction of the force on a current-carrying wire in a magnetic field is

One 10.0 amp resistor is wired in a series with two 10.0 amp resistors in parallel. A 45.0 C battery supplies power to the circuit. What is the total current through the circuit?

How to find acceleration

Which of the following involves the emission of a particle that has the same mass of an electron with a positive charge. a. alpha decay c. positron emission b. beta decay d. nuclear forces