Araft is made of 10 logs lashed together. each is 56cm in diameter and has a length of 6.1m. how many people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 69 kg? do not neglect the weight of the logs. assume the specific gravity of wood is 0.60.

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?