Physics, 14.01.2021 21:50 chloeozenghar1
A person lifts a 47.0 N cement block a vertical distance of 1.40 m and then carries the block horizontally a distance of 8.40 m. Determine the work done by the person in the process.
Answers: 3
Physics, 22.06.2019 01:30
For problems 1-3, consider a simple dc brush motor with a permanent magnet stator. with an an consider a simple dc brush motor with a permanent magnet ae supply voltage of 100 v, the no-load speed of the motor is 1000 rpm. this motor can provide a torque of 1.9 n-m at 800 rpm drawing a current of 2 a current are both zero at no load.) 1. with an armature supply voltage of 100 v, the motor is operated at 900 rpm. what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input? what is the energy efficiency of the motor? with an armature supply voltage of 100 v, the motor is operated at 1100 rpm (where it acts as a generator). what torque input is required? what mechanical power is required what current is generated? what is the electrical power generated? what is the energy efficiency of the motor acting as a generator? 2. with an armature supply voltage raised to 120 v, the motor is operated at 1000 rpm. what is the no-load speed? what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input what is the energy efficiency of the motor? 3.
Answers: 3
Physics, 22.06.2019 02:10
Which statement correctly describes the relationship between frequency and wavelength?
Answers: 2
Physics, 22.06.2019 04:10
Atotal charge of โ6.50 ยตc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 ร 105 n/c, radially inward b) 6.49 ร 105 n/c, radially outward c) 4.69 ร 105 n/c, radially inward d) 9.38 ร 105 n/c, radially outward e) 1.30 ร 106 n/c, radially inward
Answers: 3
Physics, 22.06.2019 07:30
Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.
Answers: 2
A person lifts a 47.0 N cement block a vertical distance of 1.40 m and then carries the block horizo...
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