During the daylight, you hold a ruler in a distance of 60 cm away from your eyes, and you find the size of the Moon to be 0.55 cm (try it yourself!). At night, you use a telescope to observe rock formations and craters on the Moon to estimate the diameter of the Moon to be about 3500 km.
Answers: 1
Physics, 22.06.2019 11:00, ronniethefun
If a simple machine reduces the strength of a force, what must be increased?
Answers: 3
Physics, 22.06.2019 16:00, Andrebutrus
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
Physics, 23.06.2019 00:50, Madisonaubrey22
A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping. the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?
Answers: 3
During the daylight, you hold a ruler in a distance of 60 cm away from your eyes, and you find the s...
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