Which of the following is a compound machine?
Bicycle
Pulley
...
Physics, 24.03.2020 00:26 drivinghydra
Which of the following is a compound machine?
Bicycle
Pulley
Ramp
Wedge
Which of the following is used to calculate mechanical advantage?
Fr/Fe
dr/de
de/dr
Fe/Fr
A man weighing 700 N lifts 50.0 N object 2.0 m high. He uses a lever and with a force of 10.0 N. What is the resistance force?
120 N
10.0 N
700 N
50.0 N
A pilgrim uses a block and tackle to lift a 225 N crate a distance of 16.5 m. She pulls 33.0 m of rope with a force of 129 N. What is the ideal mechanical advantage of machine?
0.50
2.00
1.74
0.573
Answers: 3
Another question on Physics
Physics, 21.06.2019 15:30
Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha
Answers: 1
Physics, 22.06.2019 09:30
An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?
Answers: 2
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
You know the right answer?
Questions
Social Studies, 19.01.2021 02:20
Mathematics, 19.01.2021 02:20
Chemistry, 19.01.2021 02:20
English, 19.01.2021 02:20
Physics, 19.01.2021 02:20
