An automobile's power is proportional to the cube of its speed on a level road in still air. This relationship between speed and engine power for the Gofaster model XP9 is:  [mph]3 = 9600 [hp]. The XP9 has a 180 hp engine. What is its max speed on a level road in still air?

Homework

A particle of mass 0.102 kg is rotating at 840 rpm at a radius of 135 mm. At t=2 the radius begins to expand at a rate of 14 mm.s-1. What is the radial force at t=1.9s [N] What is the arc length traveled by the mass at t=1.9 s? [m] What is the transverse force on the mass at t=4s? [N]

7. When you work for a company that studies the performance of car engines, you are tasked with accurately measuring the amount of air intake by car engines. A gas flow meter was introduced from the United States to measure the amount of air. This flow meter measures the flow rate using the pressure difference. Looking at the instruction manual of this flow meter, the following equations were found for the pressure difference head and volume flow [unit, volume/time]. ▷ Volumetric Flow Rate[ft°/min]: =(55.3658* DP-0.143168* DP^ 2)) However, DP is the head (water height) of the manometer, and the unit is inch to be. In the above equation, if you insert DP[inch], the air volume flow rate can be calculated and the unit of the volume flow rate is ft/min. Complex unit conversion is included in the constant in front of DP, so you don't need to worry about it. Before the experiment to measure the amount of air inhaled into the engine, the current atmospheric pressure and temperature were…

A truck driver was robbed while he was on his lunch break! At the first weigh station before lunch, the truck weighed 45,000 pounds-force [???][lbf]. At the second weigh station after lunch, which unfortunately reports weight in different units, the truck weighed 32.5 kips [???][kip]. The specific gravity of diesel fuel is 0.75.  What is the volume of fuel stolen in units of gallons [???][gal]?

The data from a series of flow experiments is given to you for analysis. Refrigerant-22 is flowing at a velocity of 0.043m/s and a bulk temperature of 370K over an isothermal plate at 290K. Some thermo-physical properties are shown in the table below. Thermal Conductivity [W/m/K] 0.06728 Kinematic Viscosity [m2/s] Prandtl Number [-] 1.235*10-7 3.28 If the transition from laminar to turbulent flow is determined to happen at the end of the plate: A. What is the length of the plate? B. What are the hydrodynamic and thermal boundary layer thicknesses at the end of the plate? C. What is the heat transfer rate per plate width for the entire plate? Given the plate length you determined in part A above is increased by 50%, at the end of the extended plate, what are D. Reynolds number? E. Hydrodynamic and thermal boundary layer thicknesses?

Feeding Rate (R) [g/h] 6 5 1 0 A B 0 1 U 2 3 E D F 4 5 6 7 8 9 Time (t) [h] 10 11 12 13 14 The feeding rate in grams per hour is displayed as a function of time in hours [h] for a bioreactor. Select the phrase that makes the following sentences true. Between points C and D, the feeding rate [Select ] Between points D and E, the feeding rate [Select] The mass of feed in grams [g] added to the bioreactor between points F and G is [Select ] The mass of feed added to the bioreactor between points E and F is zero The mass of feed added to the bioreactor between points H and I is [Select] grams [g].

A particle of mass 0.17 kg follows a trajectory with an initial speed of 12.5 m.s¹ and an initial angle of 0.5 radians from the i axis (toward j). Gravity accelerates the mass downward at -9.81i [m.s¯²] and a force of (10-0.1t)j [N] acts on the particle. F. 0 必 Answer all questions to at least 3 significant figures. Enter your numerical answers in SI units but do not enter the units. What is the force acting on the mass toward i at 2.2 seconds? [N] When does the particle pass through u.i=0 [s] What is the j component of velocity at t=2.2 seconds? [m.s-¹]

A particle of mass 133 kg is traveling on a constant radius 1.1 m with a angle of 0.23*sin(0.35t). 1. What is the transverse speed at 2.6 seconds? [m.s-1] 2. What is the radial force at 2.6 seconds? [N] 3. What is the transverse force on the particle at 2.6 seconds? [N

An ideal gas flows through a horizontal tube at steady state. No heat is added, and no shaft work is done. The cross-sectional area of the tube changes with length and this causes the velocity to change. (a) Derive an equation relating the temperature to the velocity of the gas.(b) If nitrogen at 150 [°C] flows past one section of the tube at the velocity of 2.5 [m/s], what is the temperature at another section where its velocity is 50 [m/s]? Let Cp = 7/2R.