Q1 (a) In the 2006 Winter Olympics, the men's 15-km cross-country skiing race was won by Andrus Veerpalu of Estonia in a time of 38 minutes, 1.3 seconds. Determine his average speed by referring to Table Q1.1 - (i) in km/h (ii) in mi/h Table Q1.1 Unit converter 1 ft 12 in. (inches) AYAJAM 1 mi (mile) 1 m 1 km 1 mi 5280 ft 3.281 ft 0.6214 mi 1.609 km

Q16. A 3.4-kip car speeds up uniformly from 0 to 57 mph in 39 seconds up the 15⁰ incline. If the engine has an efficiency of e = 0.73, what is the power input (in hp) when the car's speed reaches that final speed? (1 hp = 550 ft-lb/s) Please pay attention: the numbers may change since they are randomized. Your answer must include 1 place after the decimal point. Take g = 32.2 ft/s². Your Answer: Answer 15°

12. The acceleration of gravity is given as a function of elevation above sea level by the relation g-9.81 - 3.32 X 10-6 h (m/s³) with 'h' measured in meters. What is the weight of an airplane at 10,000ft elevation when its weight at sea level is 40 kN? a. 39.9583KN b. 39.9584kN c. 39.9587kN d. 39.9522kN 13. How many kilojoules in one (1) BTU? a. 778 b. 2.11 c. 0.2520 d. 1.055 14. A 2.5-m' rigid tank initially contains air whose density is 1.18 kg/m³. The tank is connected to a high-pressure supply line through a valve. The valve is opened, and air is allowed to enter the tank until the density in the tank rises to 5.30 kg/m³. Determine the mass of air that has entered the tank in Ib. a. 25.4678lb b. 25.3399|b c. 26.4865lb d. 22.7115lb 15. Three (3) adjacent bodies whose initial temperatures are 150°F, 350ºF and 60°F have specific heats of 2lb-ft/lb-°R, 4lb-ft/b-°R and 3.21lb-ft/lb-°R respectively. They are all placed inside a closed adiabatic (perfectly insulated) container until the…

1.18 Express the following in SI units: (a) 100 cfm (ft /min) (b) 5 gal (c) 65 mph (d) 5.4 acres

Calculate the amount of energy consumed by a 75kg person jumping up 70 cm for 10 minutes at a rate of one jump/second, assume a muscle efficiency of 20%. [Hint: 1kcal=4184 J] Oa 376 kcal Ob. 247 kcal Oc 123 kcal Od.411 kcal

MT NUIES ASK YOUR (a) Find a conversion factor to convert from miles per hour to kilometers por hour, mi/h x = km/h (b) Suppose the maximum highway speed is 70 mi/h, Use the conversion factor from part (a) to find the speed in kilometers per hour. km/h (c) Suppose the maximum highway speed has been raised to B5 mi/h in some places. In kilometers per hour, how much of an increase is this over the 70 mi/h limit? km/h

A 7.62 mm caliber bullet travel in two different medium of gas of helium and nitrogen at constant speed of 1,548 miles per hour. The properties of the gas are given in Table 1. Cp (kJ/kg.K) Cv (kJ/kg.K) Temperature (K) Pressure (kPa) Table 1 Helium 5.192 3.115 300 unknown Nitrogen 1.039 b) Determine the March number of the bullet for both medium. 0.746 300 unknown a) Calculate the speed of sound in both medium (helium and nitrogen). c) Do you think that the shockwave occurs in this bullet travel for both medium of gas? Sketch your ideas of this bullet travel and the shock wave (if available).

QUESTION ONEUse dimensional analysis and chain link conversion to perform the indicatedconversions.A. 0.8mile/hour to m/sB. 0.0065km2 to m2C. 5500cm3 to m3D. 435000m2 to km2   QUESTION TWOA person in a kayak starts paddling, and it accelerates from 0 to 0.8 mile/hour in adistance of 0.8km. If the combined mass of the person and the kayak is 80kg, whatis the magnitude of the net force acting on the kayak?  QUESTION THREEDiscuss three (3) applications and limitations of dimensional analysis?QUESTION FOURState the principle of homogeneity of dimensions? QUESTION FIVEA. A value of the acceleration of free fail g was determined by measuring the periodof oscillation T of a simple pendulum of length l. The relation between g, T andl is given by:  ? = 4?(? /?2) In the experiment, l was measured as 0.55±0.02 m and T was measured as1.50±0.02 s. Find the:i. Value of gii. Uncertainty in the value of g B. (a) State newton’s second law of motion and write an equation.(b)Define the term INERTIA.  (c)…

A motorcycle and rider have a combined mass of 350kg. The vehicle’s velocity is 100 km/hr. The rider is to go up a hill incline of 10 meters. The wheels each have a mass of 20 kg and a diameter of 500mm. The wheel design consists of 6 spokes with a mass of 0.5 kg for each spoke. 2) Indicate the vehicle’s velocity at each meter through the climb.

5. An elevator is accelerating downward at (where g = 9.81 in m/s³ ) when suddenly an object drops from its ceiling. If the distance between the floor and the ceiling of the elevator is d (in meters), how long will it take the object to hit the floor of the elevator? 7d A) t= | 2g 7d B) t= 3g 10d 3g C) t= 5d D) t= 2g boln