If three forces are equal and their resultant force is zero, then measure of its internal angle is. THIS IS A FILL IN THE BLANKS! a)0° b)90° c)60° d)45° Which one is correct? HELP ME OUT PLEASE!

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.