Physics, 16.04.2020 03:54 wcwheelsp26w7n
1. A small light bulb is shining light on a basketball (diameter is 23 cm or 9 inches). The light bulb is 3 m from the closest side of the basketball. Behind the basketball, on the side away from the light bulb, is a wall 4 m from the basketball. Calculate the size (diameter) of the basketball's shadow on the wall
Answers: 1
Physics, 22.06.2019 03:00
Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c
Answers: 2
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earthβs electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earthβs electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
1. A small light bulb is shining light on a basketball (diameter is 23 cm or 9 inches). The light bu...
Mathematics, 31.10.2019 03:31
Social Studies, 31.10.2019 03:31
History, 31.10.2019 03:31
History, 31.10.2019 03:31
Mathematics, 31.10.2019 03:31
Mathematics, 31.10.2019 03:31
Chemistry, 31.10.2019 03:31
Physics, 31.10.2019 03:31
History, 31.10.2019 03:31
Geography, 31.10.2019 03:31