Brainliest giveaway

just like my questions

Consider two closed systems A and B. System A contains 300 kJ of thermal energy at 20C, whereas system B contains 200kJ of thermal energy at 50oC. Now the systems are brought into contact with each other.

In a bicycle race, a bicyclist coasts down a hill with a 7 % grade to save energy. The mass of the bicycle and rider is 80 kg, the projected area is 0.2 m2, and the drag coefficient is 0.9. Air temperature is 17 ºC.

A gas within a piston-cylinder assembly executes a Carnot power cycle during which the isothermal expansion occurs at TH = 1500 K and the isothermal compression occurs at TC = 290 K. Determine: (a) the thermal efficiency.

3. Material Safety Data Sheets contain information on PEL. What is PEL? A. Permissible Exposure Limit to a chemical OB. Potential Explosive Level of a chemical C. Protective Equipment Laws applied to a chemical OD. None of these

A 1-m long, thin symmetric airfoil is placed at a free stream. Calculate the drag force for the wind speed of 150 m/s. Assume that the average friction coefficient is C subscript D equals 0.002.

At steady state, a power cycle having a thermal efficiency of 38% generates 100 MW of electricity while discharging energy by heat transfer to cooling water at an average temperature of 70 F.

What is the definition of a fluid?

You are ordering steel cable for a 250 foot long zip-line you are building in your back yard. The cable can be ordered in diameters with 1/16 inch increments. (1/16, 1/8, 3/16, 1/4, 5/16, 3/8, etc.

Which of the following statements is LEAST-Likely true? A) Do not attempt to unseat the beads of an inflated tire. B) Do not strike the tire or rim with a hammer. C) A hammer is sometimes necessary when removing a passenger car tire.

What is the pitch circle diameter of a 50-tooth spur gear having a circular pitch of 0.375 inch