sfair24bz
2021-11-10
Answered

Find two positive numbers that satisfy the given requirements. -The sum is S and the product is a maximum.

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Answered 2021-11-11
Author has **23** answers

asked 2020-10-23

A lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.200 kg, and its center of gravity is located tits geometrical center. On the tray is a 1.00 kg plate of food and a 0.190 kg cup of coffee. Obtain the force T exerted by the thumb and the force F exerted by the four fingers. Both forces act perpendicular to the tray, which is being held parallel to the ground.

asked 2021-03-07

When a car stops suddenly, the passengers tend to move forward relative to their seats. Why? When a car makes a sharp turn, the passengers tend to slide to one side of the car. Why?

asked 2021-03-21

A floating ice block is pushed through a displacement d=(15m)i-(12m)j along a straight embankment by rushing water, which exerts a force F=(210N)i-(150N)j on the block. How much work does theforce do on the block during the displacement?

asked 2021-01-05

A 0.48 kg piece of wood floats in water but is found to sinkin alcohol (specific gravity= 0.79) in which it has an apparentmass 0.035 kg. What is the SG of the wood?

asked 2021-03-07

Write out the chemical equation for the Diels-Alder reaction of anthracene with maleic anhydride, showing structures of the reactants and the product.

asked 2021-03-05

A CI is desired for the true average stray-load loss A (watts) for a certain type of induction motor when the line current is heldat 10 amps for a speed of 1500 rpm. Assume that stray-load loss isnormally distributed with A = 3.0.

In this problem part (a) wants you to compute a 95% CI for A when n =25 and the sample mean = 58.3.

In this problem part (a) wants you to compute a 95% CI for A when n =25 and the sample mean = 58.3.

asked 2021-11-07

A well-insulated rigid tank contains 3 kg of saturated liquid-vapor mixture of water at 200 kPa. Initially, three-quarters of the mass is in the liquid phase. An electric resistance heater placed in the tank is now turned on and kept on until all the liquid in the tank is vaporized. Determine the entropy change of the steam during this process. Answer: 11.1 kJ/K