Physics, 03.11.2019 08:31, diylover020253
Simple machines make work easier. most simple machines reduce the amount of effort force needed to move an object. this cart has a set of wheels. the wheels are actually simple machines: the wheel and axle. how can we change these wheels to decrease the amount of effort force needed to move the wagon?
a) use a larger wheel and axle.
b) make the radius of the axle larger in diameter.
c) make the radius of the wheel larger in diameter.
d) make the radius of the wheel smaller in diameter.
Answers: 2
Physics, 22.06.2019 13:00, help1572
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
Answers: 1
Physics, 22.06.2019 18:30, yuvraj2298
Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)
Answers: 2
Physics, 23.06.2019 09:00, jadawada223
1,990,000,000,000,000,000,000,000,0 00,000 in scientific notation
Answers: 1
Simple machines make work easier. most simple machines reduce the amount of effort force needed to m...
Mathematics, 12.12.2019 06:31
Mathematics, 12.12.2019 06:31
Health, 12.12.2019 06:31
Biology, 12.12.2019 06:31
Mathematics, 12.12.2019 06:31
Business, 12.12.2019 06:31
English, 12.12.2019 06:31