Calculate the efficiency of the motor
A 350V d.c. shunt motor has an armature resistance of 0.18 ohm. If the field current is 30A and the load current is 220A, calculate the efficiency of the motor. (neglect iron and mechanical losses):
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A student who carried out this reaction obtained 2.7 g of ferrocene. What was the percent yield for this reaction?
Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat?
A strip of electrolytically pure copper weighing 3.178 gram is strongly heated in a stream of oxygen until it is all converted to a black oxide. The resultant black powder weighs 3.978 g. What is the formula of the oxide?
A dump truck is shown in the figure. The loaded container has a mass of 8000 Kg and may be modelled as a solid homogeneous block. The hydraulic cylinder applies a force of 300 kN to the container in the starting position shown.
Calculate the change in Gibbs energy (b) Is the reaction spontaneous? (c) Calculate the total change in entropy of the system and the surroundings.
A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The partial pressure of water above the solution is __________ torr. The vapor pressure of pure water at 55 °C is 118 torr. The MW of lactose is
A 1.30 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mass percent, molality, mole fraction, and normality of the citric acid. Citric acid has three acidic protons.
If the 150 lb man fires the o.2lb bullet with a horizontal muzzle velocity of 3000 ft/s, measured relative to the 600lb cart, determine the velocity of the cart just after firing. What is the velocity of the cart when the bullet becomes embed
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Based on the findings presented by Swathi and Reddy (2016), the authors highlight that the teaching profession is characterized by high levels of stress
What could indicate to you that there is a risk to Lorna's mental or emotional health? Select four (4) answers Question Answer
Question: What could you do to assist Lorna to feel more emotionally secure?
In the field of psychology, it is important to distinguish using behavior analytic and mentalistic perspectives when describing behavior.
Question: Which statement about parental monitoring is true? Need Assignment Help? Multiple Choice Question
This study was conducted as a quantitative research design to investigate the relationship between access to after-school programs and high school graduation
Which of the following is a theory that suggests that harassment occurs when a woman's gender is more salient than her role as a worker,