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Explain what is the formula you will use to calculate how many millilitres of 5.5 M NaOH are required to prepare 400 mL of 1.5M NaOH?
A camera flash delivers 2.9 kW of light power for 1.3 ms. Find the total momentum carried by the flash
A toaster uses a Nicrhrome heating wire. When the toaster isturned on at 20o C, the initial current is 1.5A. A few seconds later, the toaster warms up and the current nowhas a value of 1.30A. The average temp coefficient ofresistivity for Nichrome ..
A 350g object on a frictionless, horizontal lab table is pushed against a spring of force constant 40.0N/cm, How fast is the object moving when it has gained half of the spring's original stored energy
Find the various changes in entropy due to the melting of the ice. What is the change in entropy, NS, of the block of ice? What is the change in entropy, NS, of the lake?
The mass of the moon is 7.3*10^22 kg and its radius if 1785km. What is the strength of the gravitational field on the surface of the moon?
A cast venturi meter is to be used to meter the flow of 15°C water through a 10-cm pipe. For a maximum differential pressure of 76 cm H2O and a nominal 0.5-m3/min flow rate, select a suitable throat size.
A 249.0 kg block of ice at 0*C is placed in a large lake. The temperature of the lake is just slightly higher than 0*C, and the ice melts. What is the entropy change of the ice
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. determine the magnitude of the average angular acceleration of the wheel
The figure below shows the force exerted on the car by the wall over the course of the collision. What is the magnitude of the velocity, or final speed, of the car after the collision?
A pipe carrying 20°C water has a diameter of 2.4 cm. Estimate the maximum flow speed if the flow must be streamline
A race car starting from rest accelerates at a constant rate of 6.50 m/s2. What is the velocity of the car
A pendulum clock has a period of 0.683 s on Earth. It is taken to another planet and found to have a period of 0.828 s, Find the gravitational field strength on the other planet.
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