Physics, 18.02.2021 16:40 alyssa6383
You and your friend enter a drawing with a different prizes. A total of 11
people entered the drawing, and prices are awarded randomly
There are 990 ways to award the prizes
What is the probability that you win first prize and your friend wine second
Answers: 2
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 19:40
Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?
Answers: 1
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
Physics, 23.06.2019 07:00
*30 points + brainliest answer* gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope
Answers: 2
You and your friend enter a drawing with a different prizes. A total of 11
people entered the dra...
Mathematics, 01.06.2021 07:00
Mathematics, 01.06.2021 07:00
Social Studies, 01.06.2021 07:00
Computers and Technology, 01.06.2021 07:00
Mathematics, 01.06.2021 07:00
Mathematics, 01.06.2021 07:00
Mathematics, 01.06.2021 07:00
Chemistry, 01.06.2021 07:00
History, 01.06.2021 07:00