When using a real machine to do work, input work will always be

at t=0s a car has a speed of 30m/s. at t=6s, its speed is 14m/s. what is its average acceleration during this time interval?

which of the materials would be able to scratch Quartz

How long does it take for 4 coulombs of charge to pass through a cross section of wire if the current is 2 Amps? * O 1 second O 2 seconds O 4 seconds O 8 seconds Not enough information

How much mass must an object have to gravitationally infuence another body?

What are advantages and disadvantages of breakwater

The mass of a lift is 600kg. the maximum tensile force that the cable supporting the lift can withstand is 7kN. Calculate:maximum upwards acceleration allowed?

In an experiment if doubling the manipulated variable results in doubling of the responding variable the relationship between the variable is a (n) ?

What color does Indigo turn things?

Why is temperature a good criterion for searching for earth like exoplanets

Supercells are updrafts that may cause which of the following? A hurricanes b blizzards c thunderstorms d tornadoes i think its Thunderstorms or tornadoes