Apowerful motorcycle can produce an acceleration of 3.50 m/s2 while traveling at 90.0 km/h. at that speed the forces resisting motion, including friction and air resistance, total 425 n. (air resistance is analogous to air friction. it always opposes the motion of an object.) what is the magnitude (in n) of the force the motorcycle exerts backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 240 kg?

Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?

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.

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap