Physics, 27.06.2019 06:20 alissa2151
Bank robbers have pushed a 1000 kg safe to a second story floor to ceiling window. they plan to break the window, then lower the safe 3.0 meteres to their truck. not being too clever, they stack up 500 kg of furnature, tie a rope between the safe and the furnature, and place the rope over the pully. then they push the safe out of the window. what is the saves speed when it hits the truck? the coefficient of kinetic friction between the furniture and the floor is 0.50.
Answers: 1
Physics, 21.06.2019 17:30
Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg
Answers: 1
Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
Answers: 1
Physics, 22.06.2019 12:30
What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery
Answers: 1
Bank robbers have pushed a 1000 kg safe to a second story floor to ceiling window. they plan to brea...
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