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Q. What least amount heat is needed to bring 20-g of water at 20C to the boiling point and completely boil it away?
Q. A 30 cm-tall, 4.0 cm-diameter cylindrical beaker is filled to its brim with water, what is the downward force of the water on the bottom of beaker?
A 12.0 resistor, 10.0 mH inductor, and a 50.0 µF capacitor are connected in series to a 55.0 V (rms) source having variable frequency. Find out the energy delivered to the circuit during one period if the operating frequency is twice the resonance..
A solid, frictionless cylindrical pulley with a mass of 3kg and a 0.420 m radius is used to draw water from a well. A 1.50kg bucket is attached to a cord that is wrapped around the pulley. If the bucket starts from rest at the top of the well and ..
A simple pendulum has a mass of 0.150 kg and a length of 3.00 m. It is displaced by an angle of 12.0° and then released. What is the utmost speed?What is the maximum angular acceleration?What is the maximum restoring force.
A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?
You are to gracefully crawl in the tube and sit calmly in seat without holding on to anything. The cannon will then be raised to an angle such that your speed through the air at your highest point is 10 ft/sec.
A particle with a mass of 4.10 × 10-20 kg is oscillating with simple harmonic motion with a period of 2.9 × 10-5 s and a maximum speed of 2.3 × 103 m/s.
What is the linear speed of the phonograph needle
What is the temperature of the outside air. What are the components of the displacement vector from camp to summit? What is its magnitude? select the x axis east, y axis north, and z axis up.
For a procedure, the enthalpy change and the entropy change of the system is 173000 J and its entropy change is 210 J/K. compute the free energy change of the system at 298 K.
Make a 10 to12 slide powerpoint presentation on behaviourism and social-learning theory. Include speaker notes and graphics, limit text to fie lines, and use approximately five words per bulleted item.
You have a great summer job working in a cancer research laboratory. Your team is trying to construct a gas laser that will give off light of an energy that will pass by the skin but be absorbed by cancer tissue.
A lighthouse that rises h1 = 43.6 ft above the surface of the water sits on a rocky cliff that extends $d$ = 20.0 ft from its base, as shown in the figure below. A sailor on the deck of a ship sights the top of lighthouse at an angle of $theta$ = 29...
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