Engineering analysis

1. a) A possible spacecraft design uses a solar sail made of aluminized plastic.

1. a) A possible spacecraft design uses a solar sail made of aluminized plastic. As sunlight reflects off the sail, radiation pressure drives the spacecraft outward away from the …

1. a) A projectile is fired at 25 deg above the horizontal. It\'s initial speed

1. a) A projectile is fired at 25 deg above the horizontal. It's initial speed is equal to 25 m/s. Assume that the free-fall acceleration is constant throughout and that the effec…

1. a) A spring has a force constant (k=18N/m). if it iscompressed 50 cm from its

1. a) A spring has a force constant (k=18N/m). if it iscompressed 50 cm from its original equilibrium length, how muchmass will have gained? b) A typical household uses 500 kwh (k…

1. a) A straight segment of current carrying wire has a current element IL, wher

1. a) A straight segment of current carrying wire has a current element IL, where I = 3 A and L = 3.0 cm k + 4.0 cm j. The segment is in a region with a uniform magnetic field of …

1. a) A typical indoor temperature is 21 degree Celsius. A typical outdoor tempe

1. a) A typical indoor temperature is 21 degree Celsius. A typical outdoor temperature for Fairbanks, Alaska in January is -2 degree Fahrenheit. What are these temperatures in the…

1. a) A typical indoor temperature is 21 degree Celsius. A typical outdoor tempe

1. a) A typical indoor temperature is 21 degree Celsius. A typical outdoor temperature for Fairbanks, Alaska in January is -2 degree Fahrenheit. What are these temperatures in the…

1. a) An air puck of mass 0.268 kg is tied to a string andallowed to revolve in

1. a) An air puck of mass 0.268 kg is tied to a string andallowed to revolve in a circle of radus 1.06 m on a horizontal,frictionless table. The other end of the string passes thr…

1. a) Choose one of the following and write a one page explanation. Which scient

1. a) Choose one of the following and write a one page explanation. Which scientists made the most important contributions to the development of quantum mechanics? What kinds of e…

1. a) For lunch, you and your friends decide to stop at the nearest deli and hav

1. a) For lunch, you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.119 kg of turkey. The slices of turkey are weighed on a plat…

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as sho

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as shown in Figure 6 and Figure 7 ) ? b) If the power supply is set at 6 volts, what are the voltage and …

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as sho

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as shown in Figure 6 and Figure 7 ) ? b) If the power supply is set at 6 volts, what are the voltage and …

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as sho

1. a) If resistor R1 is 75 and R2 is 2 00 what is the series re sistance (as shown in Figure 6 and Figure 7 ) ? b) If the power supply is set at 6 volts, what are the voltage and …

1. a) If the mass of a block that is attached to an oscillating spring, on a hor

1. a) If the mass of a block that is attached to an oscillating spring, on a horizontal friction-less surface, is magically increased while at a point of maximum displacement, how…

1. a) In step 8 of the procedure, what would you expect to observe, and why? b)

1. a) In step 8 of the procedure, what would you expect to observe, and why? b) What can you conclude from steps 10 and 11? III. Experimental Procedure Part A: Polarizers I) You w…

1. a) True or False? The yield strength of a material generally increases with t

1. a) True or False? The yield strength of a material generally increases with the square of the dislocation concentration. b) For the dislocation shown here, in which direction d…

1. a) Using the equation and only the variables m and g , calculate the tension

1. a) Using the equation and only the variables m and g, calculate the tension force required to accelerate the object upwards with an acceleration of twice the magnitude of the a…

1. a) What Transportation Association of Canada classification code would be ass

1. a) What Transportation Association of Canada classification code would be assigned to an urban street to be designated as an arterial street with a narrow concrete median and f…

1. a) What is the speed at which a sphere descends through water if it has a den

1. a) What is the speed at which a sphere descends through water if it has a density of 1000 kg/m^3? b) Calculate the speed at which a ball bearing with a density of 5000 kg/m^3 a…

1. a) What would happen to the graph\'s slope and y-intercept if a 0.03kg disk w

1. a) What would happen to the graph's slope and y-intercept if a 0.03kg disk was used instead of a 0.5kg disk (moment of inertia)? b) What happens to the acceleration as the mome…

1. a) When 50 g of ice at -10 ? are added to 1.0 kg of water at 15 ?, is there e

1. a) When 50 g of ice at -10 ? are added to 1.0 kg of water at 15 ?, is there enough ice to cool the water to 0 ?? b)Find the final temperature of water? 2.A gas sample undergoes…

1. a). Define specific enthalpy in terms of specific internal energy, pressure a

1. a). Define specific enthalpy in terms of specific internal energy, pressure and density. b). write down conservation of energy equation for steady-state steady flow process, fo…

1. a)Use Newton’s 2nd law to show how the spring force balances the weight of a

1. a)Use Newton’s 2nd law to show how the spring force balances the weight of a mass hanging on the spring. For your equation use the following variables: Mass hanging on the spri…

1. a. A ball of mass 5.1 g with a speed of 26.8 m/s strikes a wall at an angle 1

1. a. A ball of mass 5.1 g with a speed of 26.8 m/s strikes a wall at an angle 19.0o and then rebounds with the same speed and angle. It is in contact with the wall for 40.0 ms. W…

1. a. A satellite is in a circular orbit around the earth. The period of the sat

1. a. A satellite is in a circular orbit around the earth. The period of the satellite is 23.7 hr. Calculate the radius of the orbit of the satellite. Data: Mass of the earth = 5.…

1. a. A thin piece of 0.3mm thick hot-rolled strip of 1080 steel is heat-treated

1. a. A thin piece of 0.3mm thick hot-rolled strip of 1080 steel is heat-treated in the following way. Use the IT diagram for steel and other knowledge to determine the microstruc…

1. a. An object is undergoing free fall motion. As it falls, the objects -Speed

1. a. An object is undergoing free fall motion. As it falls, the objects -Speed increases -Acceleration increases -Both of these None of these B. A projectile is launched at an an…

1. a. An object is undergoing free fall motion. As it falls, the objects -Speed

1. a. An object is undergoing free fall motion. As it falls, the objects -Speed increases -Acceleration increases -Both of these None of these B. A projectile is launched at an an…

1. a. An oscillation has an amplitude of 0.65 metres and a frequency of 67.2 Hz.

1. a. An oscillation has an amplitude of 0.65 metres and a frequency of 67.2 Hz. Calculate the displacement at time {t} seconds to 2 sf, assuming it is described by the equation: …

1. a. Between a series-wound and a shunt-wound dc motor which has the greater st

1. a. Between a series-wound and a shunt-wound dc motor which has the greater startup torque? b. Whaich has the better steady-speed charachteristics? 2.a. Where does most of the e…

1. a. Between a series-wound and a shunt-wound dc motor which has the greater st

1. a. Between a series-wound and a shunt-wound dc motor which has the greater startup torque? b. Whaich has the better steady-speed charachteristics? 2.a. Where does most of the e…

1. a. Salt water is denser than fresh water. Which fish would need to have has a

1. a. Salt water is denser than fresh water. Which fish would need to have has a larger bladder? A saltwater or Freshwater bass? b. What is fizzing a fish? c. A shark is a cartila…

1. a. Two identical steel balls, each of mass 2.8 kg, are suspended from strings

1. a. Two identical steel balls, each of mass 2.8 kg, are suspended from strings of length 30 cm so that they touch when in their equilibrium position. We pull one of the balls ba…

1. a. Using the superposition theorem, determine the current through the 12 ohms

1. a. Using the superposition theorem, determine the current through the 12 ohms resistor of Fig.9.119. b. Convert both voltage sources to current sources and recalculate the curr…

1. a. Using the superposition theorem, determine the current through the 12 ohms

1. a. Using the superposition theorem, determine the current through the 12 ohms resistor of Fig.9.119. b. Convert both voltage sources to current sources and recalculate the curr…

1. a. What is the speed of light in \"fine crystal\" (leaded glass), if the glas

1. a. What is the speed of light in "fine crystal" (leaded glass), if the glass has an index of refraction of 1.75? 1. b. Suppose that light from a green laser passes from air int…

1. a.)Calculate the rate of heat conduction (in W) through a double-paned window

1. a.)Calculate the rate of heat conduction (in W) through a double-paned window that has a 3.50 m2 area and is made of two panes of 0.600 cm thick glass separated by a 1.00 cm ai…

1. a: An electromagnetic wave travles in the y direction. At a particular point

1. a: An electromagnetic wave travles in the y direction. At a particular point (Q) in space, E=500xN/C. The maximum magnitude of E is also 500N/C. Determine the magnitude and dir…

1. an aluminum casting that weighs 10 pounds sits on a steel surface. How much f

1. an aluminum casting that weighs 10 pounds sits on a steel surface. How much force will be necessary to get it to start sliding? The static coefficient of friction (mu) for alum…

1. an aluminum casting that weighs 10 pounds sits on a stell surface. How much f

1. an aluminum casting that weighs 10 pounds sits on a stell surface. How much force will be necessary to get it to start sliding? The static coefficient of friction (mu) for alum…

1. an astronau applies a force of 500 N to an asteroid, and it accelerates at 7.

1. an astronau applies a force of 500 N to an asteroid, and it accelerates at 7.00 m/s^2. what is the asteroid's mass? 2. The acceleration due to gravit on the Moon's surface is o…

1. an inflated rubber balloon is rubbed with a wool cloth until an excess of a b

1. an inflated rubber balloon is rubbed with a wool cloth until an excess of a billion electrons is on the balloon what is the magnitude of the charge on the balloon 2. What is th…

1. an object is thrown from the ground with an initial speed of 25 m/s at an ang

1. an object is thrown from the ground with an initial speed of 25 m/s at an angle of 30 deg above the horizontal. a. what is the velocity ( both x and y components ) of the objec…

1. an undulated surface that is designed to reduce friction by eliminating wear

1. an undulated surface that is designed to reduce friction by eliminating wear particles from the sliding interface. The interface is subjected to normal force N. The sliding spe…

1. around the nail, 2. in the same direction as the currentaround the nail, 3.op

1. around the nail, 2. in the same direction as the currentaround the nail, 3.opposite the current    4.upright 5. downleft What is the force on the magnet that results from the m…

1. as shown in the figure below, a box mass m= 10.6 kg is released from rest (po

1. as shown in the figure below, a box mass m= 10.6 kg is released from rest (postion a) at the top of a 30 degree frictionless incline. the box slides a distance d= 4.00m down th…

1. at what time is the angular velocity of the motor shaft zero? 2. calculate th

1. at what time is the angular velocity of the motor shaft zero? 2. calculate the angular displacement at the instant that the motor shaft has zero angular velocity. 3.at t=2sec t…

1. bandwidth is the range of frequencies between the half power. 2. the total im

1. bandwidth is the range of frequencies between the half power. 2. the total impedance of a series RLC circuit at resonance is equal to the circuit. 3. current and voltage are in…

1. bandwidth is the range of frequencies between the half power. 2. the total im

1. bandwidth is the range of frequencies between the half power. 2. the total impedance of a series RLC circuit at resonance is equal to the circuit. 3. current and voltage are in…

1. calculate it\'s translational speed when it reaches the bottom. 2. calculate

1. calculate it's translational speed when it reaches the bottom. 2. calculate its rotational speed when it reaches the bottom 3. what is the ratio of translational to rotational …

1. calculate speed of a car moving 10 miles and 15 minutes 2. calculate the dist

1. calculate speed of a car moving 10 miles and 15 minutes 2. calculate the distance a car travels if it has a speed of 50 km/hr and travels for 30 seconds. 3. what is the acceler…