The manufacturer of a 1.5 V D flashlight battery says that the battery will deliver 9 mA for 40 con- tinuous hours. During that time the voltage will drop from 1.5 V to 1.0 V. Assume the drop in volt- age is linear with time. How much energy does the battery deliver in this 40 h interval

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton