Do 120 Joules of work in 2 minute, and your power output is a. 120 Watts. b. 2 Watts. c. 240 Watts. d. 1 Watt.
Power = Energy/Time
where Power is measured in Watts, Energy in Joules and Time in
Seconds
2 minutes = 120 seconds.
So, for the above question,
P = E/t
so P = 120/120
= 1W
Do 120 Joules of work in 2 minute, and your power output is a. 120 Watts....
Compute the power output (watts) during one minute of treadmill exercise, given the following: Treadmill grade-10% Horizontal speed 100 meters per minute Subject's body weight 60 kg (i.e., force 588.6 Newtons) 1 joule 1 newton-meter 1 watt 1 joule per second 1 kcal 426.8 kpm Multiple Choice 981 watts 9,810 watts 981 watts Power output cannot be calculated given the information above.
The units of power, Watts, are same as A. Joules/second B. Joules.meters C. Joules.seconds D. Joules/meter
sustainable energy
Problem 2: If a PV array has a maximum power output of 10 watts under irradiance level of 600 W/m2 a. What must the irradiance be to achieve a power output of 17 watts? b. Would you expect the open circuit voltage to increase or decrease? c. Would you expect the short circuit current to increase or decrease?
Problem 2: If a PV array has a maximum power output of 10 watts under irradiance level of 600 W/m2...
A 120/240 volt, single-phase system is a system with its center
tap as the neutral point. (See drawing below). The load of circuit
No. 1 connected between Line 1 and neutral is 1500 watts and that
of circuit No. 2 between Line 2 and neutral is 1000 watts. Assuming
PF = 1.
The current in amperes carried for the 1500 watt circuit is?
The current in amperes carried for the 1000 watt circuit is?
The combined neutral is?
1500 W...
How much power in watts is necessary to do 553 J of work is done in 3.6 sec? [Write answer to two sig. figs.]
A. It takes 1.0 kg of coal to produce 28.8x10^6 Joules of heat. If a power plant uses 16.5 kg of coal per second, what is the electrical power output in Watts or Megawatts? B. What mass of water uses 28.8x10^6 Joules of heat to go from 308K to 853K?
4- What is the useful power output in watts and horsepower of a person who does 2.5x10° J of useful work in 4 hours?
1. An electric motor draws 2238 watts and 12 amperes when oper ating on a 240 volt 60 hertz source. Calculate: a. Power factor of motor b. Power input to motor c. Horespower output of the motor if it is 75% efficient. (Question no 4)
at 120 volts. a. the same b. less J BOX 2-POLE СВ 120/208 v 30, 4-W PANEL K 208 VOLTS DUCT 115.312 Line-to-Line HEATER ct heater contains two identically-rated ne two identically-rated heating elements that are connected as shown. ce rigure 115.312. If the leads of the voltmeter were moved to TI & 14, the r 3. See Figure 115.312. If the lea _ volts. a. 104 b. 120 d. O c. 208 4. See Figure 115.312. If the leads...
Assume running consumes 99 Calories per mile. If you run 11-minute miles, what is your average power output, in watts, during a 1-hour run? Your average power output is watts. (Round to the nearest whole number as needed.)