You are lying on a beach, your eyes 20cm above the sand. just as the sun sets, fully disappearing over the horizon, you immediately jump up, your eyes now 150 cm above the sand, and you can again just see the top of the sun. if you count the number of seconds until the sun fully disappears again, you can estimate the earth’s radius. but for this problem, use the known radius of the earth to calculate the time t.
Answers: 1
Physics, 21.06.2019 15:30
The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed
Answers: 1
Physics, 21.06.2019 23:20
The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.
Answers: 3
Physics, 22.06.2019 00:10
The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.
Answers: 2
Physics, 22.06.2019 00:30
There are weak or strong attractive forces between atoms of liquids with a high viscosity
Answers: 3
You are lying on a beach, your eyes 20cm above the sand. just as the sun sets, fully disappearing ov...
Mathematics, 26.09.2019 06:00
Biology, 26.09.2019 06:00
History, 26.09.2019 06:00
Physics, 26.09.2019 06:00
Geography, 26.09.2019 06:00
History, 26.09.2019 06:00
History, 26.09.2019 06:00
Mathematics, 26.09.2019 06:00
Geography, 26.09.2019 06:00