Mathematics, 14.02.2020 03:01 hidalgo8429
Ask Your Teacher A tank contains 350 liters of fluid in which 10 grams of salt is dissolved. Pure water is then pumped into the tank at a rate of 5 L/min; the well-mixed solution is pumped out at the same rate. Find the number A(t) of grams of salt in the tank at time t.
Answers: 1
Mathematics, 21.06.2019 21:30
The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?
Answers: 1
Mathematics, 21.06.2019 21:40
Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0
Answers: 1
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
Ask Your Teacher A tank contains 350 liters of fluid in which 10 grams of salt is dissolved. Pure wa...
Mathematics, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Spanish, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Physics, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
English, 29.10.2020 01:00
Mathematics, 29.10.2020 01:00
Health, 29.10.2020 01:00