Answers: 1
Physics, 22.06.2019 12:00
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?
Answers: 1
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 earth’s 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 earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 14:30
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
A soccer ball is at rest. A player kicks the ball from the ground. What impact will the energy trans...
Chemistry, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Chemistry, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Social Studies, 17.11.2020 09:30
Chemistry, 17.11.2020 09:30
English, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
English, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30
Chemistry, 17.11.2020 09:30
Mathematics, 17.11.2020 09:30