Physics
Physics, 24.03.2021 19:00, ralphmillerrr

The dominant form of drag experienced by vehicles (bikes, cars, planes, etc.) at operating speeds is called form drag. It increases quadratically with velocity (essentially because the amount of air you run into increases with and so does the amount of force you must exert on each small volume of air). Thus Fdrag=C_dA_*v^2where A is the cross-sectional area of the vehicle and C_d is called the coefficient of drag. Consider a vehicle moving with constant velocity . Find the power dissipated by form drag?P=?I am not sure how to start with this problem, I need help because once someone walks me through this problem it will help with a lot of other drag problems I am experiencing. A certain car has an engine that provides a maximum power Po . Suppose that the maximum speed of the car, v0 , is limited by a drag force proportional to the square of the speed (as in the previous part). The car engine is now modified, so that the new power P1 is 10 percent greater than the original power (P1=110%Po).Assume the following:The top speed is limited by air drag. The magnitude of the force of air drag at these speeds is proportional to the square of the speed. By what percentage, (v1-v0)/v0 , is the top speed of the car increased?And again, I just need help on the different parts to the problem, if ANYONE could describe it to me it would help greatly with my understanding of this sheet of drag problems I have with me.

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 00:40, camco301
Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. in essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. suppose a current of 480.ma is passed through an electroplating cell with an aqueous solution of agno3 in the cathode compartment for 46.0 seconds. calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. round your answer to 3 significant digits. also, be sure your answer contains a unit symbol. ×10μ
Answers: 3
image
Physics, 22.06.2019 12:30, mommer2019
Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
Answers: 1
image
Physics, 22.06.2019 19:30, 23basu3
Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 2
image
Physics, 22.06.2019 20:30, adrianayepez8
Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
Answers: 3
Do you know the correct answer?
The dominant form of drag experienced by vehicles (bikes, cars, planes, etc.) at operating speeds is...

Questions in other subjects: