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- What is the coefficient of kinetic friction given a mass of 0.519, length of 1.0, Va of 6.87 and Vb of 0.531?An electric water heater consumes 300 watts for 3 hrs per day. What is the cost of running it for one year if electricity costs P 6.00/kWh? P 197.10/yr O P1,971.00/yr O P 19,710.00/yr O P 19,710.00/yrA device which tests the resistance to wear of two materials A and B is shown. If the link EO has a velocity of 3.8 ft/sec to the right when 9-46%, determine the magnitude of the rubbing velocity VA Assume a 4 in., b-11 in.r-5 in.. Answer: VA ft/sec
- What are the expected readings of the following in the figure below? (R = 5.80 N, AV = 6.50 V) A R AV 10.0 N 5.00 N + R 4.50 V (a) ideal ammeter (Give your answer in mA.) |413 mA (b) ideal voltmeter (Give your answer in volts.) 2 V (c) What If? How would the readings in the ammeter (in mA) and voltmeter (in volts) change if the 4.50 V battery was flipped so that its positive terminal was to the right? ideal ammeter 66.2 X mA ideal voltmeter 11Determine the resultant force and specify where it acts measured from point A. 400 Ib/t 250 lh/t Be -12 fl- Select one: O a. FR=4200lb, x=12.65ft O b. FR=5325Ib, x=13.63ft O c. FR=5325lb, x=12.48ft O d. FR=4200Ib, x=14.32ftInput-Fy=13.4
- During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. www R Battery The measured value of the current is I = 4.2 ± 0.2 A and that of the voltage is V = 17 + 0.3 V. The resistance of the circuit (in N) can be calculated using the formula, R = V/I, Calculate the, a) Resistance (in N) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in N) in the resistance=Calculate the total capacity C₂ = 12µF B C₂ = 20µF C₂ = 18µF U=5VHow much does it cost to operate a 695W heater for exactly 30.0 min if electrical energy costs $0.060 per kW.h?
- For the circuit in Fig. 3.66, find vj and vz using nodal analysis. 4 kn ww- 2 kn www- 3 mA I kn V.A stone is dropped from a cliff into the ocean. The sound of the impact of the stone on the ocean surface is heard 6.5 seconds after it is dropped. The velocity of sound is 340 m/sec. How high is the cliff? XXX Cliff ocean h = 146.83 m h = 152.32 m h = 175.45 m h = 186.12 m Oh = 193.06 m3N → २m Find work done