A 300kg crate must be loaded from ground level onto a truck bed that is 1.75 meters above ground level. The movers have two choices. They can simply lift the crate onto the truck bed or they can use a 3.5m ramp that goes from the truck bed to the ground.

They call you for help (with understanding the options - not lifting the crate!). You agree to help and must now:

For each case determine the work done in moving the crate. Also for each case determine the Force required by the workers.

What option do you recommend?

How does the length of the ramp affect the situation?

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location

(science)study the following ocean currents map. an ocean currents map is shown. on the map the locations for san diego, california and savannah, georgia are marked. there is a looping current from the north past san diego and a looping current from the south near savannah which statement is most likely correct about the average temperatures in san diego, california as compared to savannah, georgia? it is higher in savannah because of the cool ocean currents from the south. it is higher in savannah because of the warm ocean currents from the north. it is lower in san diego because of the warm ocean currents from the south. it is lower in san diego because of the cool ocean currents from the north.

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.