1 Science P4 Async 20-21 Which refers to the sum of all the forces that act upon an object?
absolute force
net force
positive force
balanced force
Chemistry

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

In a copper wire, a temperature increase is the result of which of the following