Engineering analysis

1.A wave on a string is described by the relation y = A sin(45 t - 0.028 x ), wh

1.A wave on a string is described by the relation y = A sin(45t - 0.028x), where t is measured in seconds and x in meters, with A = 0.14 m. Find the frequency of the wave Find the…

1.Air resistance is present on a ball launched horizontally out a window, striki

1.Air resistance is present on a ball launched horizontally out a window, striking the ground ten seconds later. What will the air resistance do to the following system consisting…

1.An aircraft engine takes in an amount 9100 J of heat and discards an amount 66

1.An aircraft engine takes in an amount 9100 J of heat and discards an amount 6600 J each cycle a)What is the mechanical work output of the engine during one cycle? b)What is the …

1.An aircraft engine takes in an amount 9100 J of heat and discards an amount 66

1.An aircraft engine takes in an amount 9100 J of heat and discards an amount 6600 J each cycle a)What is the mechanical work output of the engine during one cycle? b)What is the …

1.An automobile of mass 1500 kg moving at 25.0 m/s collideswith a truck of mass

1.An automobile of mass 1500 kg moving at 25.0 m/s collideswith a truck of mass 4500kg at rest. the bumpers of the twovehicles lock together during the crash. a. Compare the force…

1.An electrical heater in a system for providing domestic hot water is rated at

1.An electrical heater in a system for providing domestic hot water is rated at 5.0 kW of electric power if its input voltage is 120 V . (a) Find the resistance of the heater. (b)…

1.An electrical heater in a system for providing domestic hot water is rated at

1.An electrical heater in a system for providing domestic hot water is rated at 5.0 kW of electric power if its input voltage is 120 V . (a) Find the resistance of the heater. (b)…

1.An electronic device that will generate and combine (in phase) 400 Hz, 800 Hz,

1.An electronic device that will generate and combine (in phase) 400 Hz, 800 Hz, 1200 Hz, 1600 Hz, 2000 Hz, and 2400 Hz signals will produce a(n) A.sine wave. C.imperfect sawtooth…

1.An elevator in a tall building is allowed to reach a maximum speed of 3.5 m/s

1.An elevator in a tall building is allowed to reach a maximum speed of 3.5 m/s going down. What must the tension be in the cable to stop this elevator over a distance of 2.5 m if…

1.An elevator in a tall building is allowed to reach a maximum speed of 3.5 m/s

1.An elevator in a tall building is allowed to reach a maximum speed of 3.5 m/s going down. What must the tension be in the cable to stop this elevator over a distance of 2.5 m if…

1.An engineer in a locomotive sees a car stuck on the track at a railroad crossi

1.An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer ?rst sees the car, the locomotive is 300 m from the cro…

1.An engineer is given the job of designing the water system for a tall building

1.An engineer is given the job of designing the water system for a tall building. He decides to locate the pumps at ground level and feed the entire building from there. If the to…

1.An ideal gas is at 30 C. The gas is cooled, reducing the thermal energy by 25%

1.An ideal gas is at 30 C. The gas is cooled, reducing the thermal energy by 25%. What is the new temperature in C? 2. The lowest pressure ever obtained in a laboratory setting is…

1.An ideal gas is placed in an elastic container and is helpat a constant temper

1.An ideal gas is placed in an elastic container and is helpat a constant temperature.    Its pressureis 101.3*10^3 Pa when the volume of the container is 28100 cm^3.find its pres…

1.An ideal spring obeys hookes law F=-kx. Mass of 0.50 kg hung vertically from t

1.An ideal spring obeys hookes law F=-kx. Mass of 0.50 kg hung vertically from this spring stretches the spring 0.075m. Force constant for the spring is A. 0.30N/m B. 0.66N/m C. 6…

1.An object has a charge of ? 2.1 ? C. How many electrons must be removed so tha

1.An object has a charge of ?2.1 ?C. How many electrons must be removed so that the charge becomes +2.9 ?C? 2.Two tiny conducting spheres are identical and carry charges of -21.6 …

1.An object has a mass of m = 647 g. It is attached to a spring which has a spri

1.An object has a mass of m = 647 g. It is attached to a spring which has a spring constant of value k = 65 N/m. At time t = 0 the object is pulled to a distance of 28.1 cm from i…

1.An object is initially traveling in the +x direction at 14.2 m/s. A constant a

1.An object is initially traveling in the +x direction at 14.2 m/s. A constant acceleration is applied to it and after it travels a displacement of 12.6 meters in the +x direction…

1.An object of height 0.05 meters is located 0.6 meters in front of a thin conve

1.An object of height 0.05 meters is located 0.6 meters in front of a thin converging lens. The lens forms an image of the object at point A, which is 0.3 meters beyond the lens. …

1.An object weighs 15.6 N in air and 12.8 N when submerged in mineral spirits, w

1.An object weighs 15.6 N in air and 12.8 N when submerged in mineral spirits, which has a density of 876 kg/m3.   Determine the density of the object. Question options: 4.78 104 …

1.An owl has good night vision because its eyes can detect a light intensity as

1.An owl has good night vision because its eyes can detect a light intensity as small as 5.0 x 10-13 W/m2. What is the minimum number of photons per second that an owl eye can det…

1.Answer the following work problem: a) Calculate the wok done by a force F give

1.Answer the following work problem: a) Calculate the wok done by a force F given in Cartesian coordinates as (-2 N, 3 N, 3 N) on an object when it moves from Ri = (10 m, 4 m, -2 …

1.As a result of any natural process, the total entropy of any system plus that

1.As a result of any natural process, the total entropy of any system plus that of its environment As a result of any natural process, the total entropy of any system plus that of…

1.As a water wave approaches a shoreline, wave speed? 2. Air that flows southwar

1.As a water wave approaches a shoreline, wave speed? 2. Air that flows southward from the horse latitudes in the Southern Hemisphere deflects eastward to produce the 3. Air that …

1.Assume that an MX missile goes from rest to a suborbital velocity of 7.50 km/s

1.Assume that an MX missile goes from rest to a suborbital velocity of 7.50 km/s in 80.0 s (the actual speed and time are classified). What is its average acceleration in m/s2? __…

1.At a certain instant, a 4.0-kg object is sliding eastward at a speed of 15 m/s

1.At a certain instant, a 4.0-kg object is sliding eastward at a speed of 15 m/s, propelled by an eastward force of 35 N. The coefficient of kinetic friction between the object an…

1.At a speed of 12 m/sec how far can you travel in one minute? 12 m 72 m 60 m 72

1.At a speed of 12 m/sec how far can you travel in one minute? 12 m 72 m 60 m 720 m 2. Under what conditions are the values of average speed and the magnitude of the average veloc…

1.At least how many Calories does a mountain climber need to climb from sea leve

1.At least how many Calories does a mountain climber need to climb from sea level to the top of a 4.22 km tall peak assuming the muscles of the climber can convert chemical energy…

1.At least how many Calories does a mountain climber need to climb from sea leve

1.At least how many Calories does a mountain climber need to climb from sea level to the top of a 4.22 km tall peak assuming the muscles of the climber can convert chemical energy…

1.At low frequencies, an op-amp has an open-loop gain A0 =10^5 and an open-loop

1.At low frequencies, an op-amp has an open-loop gain A0 =10^5 and an open-loop output resistance R0 =150 . The op-amp is to be used in a non-inverting amplifierr having a voltage…

1.At low frequencies, an op-amp has an open-loop gain A0 =10^5 and an open-loop

1.At low frequencies, an op-amp has an open-loop gain A0 =10^5 and an open-loop output resistance R0 =150 . The op-amp is to be used in a non-inverting amplifierr having a voltage…

1.At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at

1.At one instant, a 19.0-kg sled is moving over a horizontal surface of snow at 3.90 m/s. After 8.95 s has elapsed, the sled stops. Use a momentum approach to find the magnitude o…

1.At takeoff a commercial jet has a 65.0 m/s speed. Its tires have a diameter of

1.At takeoff a commercial jet has a 65.0 m/s speed. Its tires have a diameter of 0.700 m. (a) At how many rpm are the tires rotating? ___ rpm (b) What is the centripetal accelerat…

1.At takeoff a commercial jet has a 65.0 m/s speed. Its tires have a diameter of

1.At takeoff a commercial jet has a 65.0 m/s speed. Its tires have a diameter of 0.700 m. (a) At how many rpm are the tires rotating? ___ rpm (b) What is the centripetal accelerat…

1.At time t = 0 s, an object is observed at x = 0 m; and its position along the

1.At time t = 0 s, an object is observed at x = 0 m; and its position along the x axis follows this expression: x = –3t +t3, where the units for distance and time are meters and s…

1.At time t = 0 s, an object is observed at x = 0 m; and its position along the

1.At time t = 0 s, an object is observed at x = 0 m; and its position along the x axis follows this expression: x = –3t +t3, where the units for distance and time are meters and s…

1.At what frequency does the inductive reactance of a 42.0 µH inductor equal the

1.At what frequency does the inductive reactance of a 42.0 µH inductor equal the capacitive reactance of a 42.0 µF capacitor? (a) What is the maximum current in a 3.80 µF capacito…

1.At what separation will two charges, each of magnitude 6.0 micro Coulombs, exe

1.At what separation will two charges, each of magnitude 6.0 micro Coulombs, exert a force of 0.70 N on each other? Answer: 0.68 m 2.Two positive point charges Q and 2Q are separa…

1.CFC\'s (chlorflurocarbons) were banned in the world by the year? 2000,2008,197

1.CFC's (chlorflurocarbons) were banned in the world by the year? 2000,2008,1970,1987, 1980 2.Renewable energy? does not add carbon dioxide to the atmoshpere, adds methane to the …

1.Calculate motor speed in revolutions per minute for an eight-pole,50Hz motor.

1.Calculate motor speed in revolutions per minute for an eight-pole,50Hz motor. Give the equation and identify its parts; show your math. 2.You need to detect finished products co…

1.Calculate the average density of the Sun from its radius and mass, use the uni

1.Calculate the average density of the Sun from its radius and mass, use the unit of kg/L to express the density. Note that there are 1000 cm3 in 1 liter (1 L). 2.The residents of…

1.Calculate the magnitude of the gravitational force between the Earth and an m

1.Calculate the magnitude of the gravitational force between the Earth and an m = 6.90 kg mass on the surface of the Earth. The distance to the center of the Earth from the surfac…

1.Calculate the net torque (magnitude and direction) on the beam in Figure P8.3

1.Calculate the net torque (magnitude and direction) on the beam in Figure P8.3 about the following axes. (a) an axis through O, perpendicular to the page      N Calculate the net…

1.Can an object be in mechanical equilibrium when only a single force acts on it

1.Can an object be in mechanical equilibrium when only a single force acts on it? Explain. 1.None of these 2. Yes; the object will act back with an equal and opposite force. 3. No…

1.Car A is traveling at 77 km/h while car B is at 60 km/h. (a) What is the relat

1.Car A is traveling at 77 km/h while car B is at 60 km/h. (a) What is the relative velocity of car A to car B if they both are traveling in the same direction? km/h (b) What is t…

1.Car batteries are typicallyrated in ampere-hours, or A · h. (a) Show that ampe

1.Car batteries are typicallyrated in ampere-hours, or A · h. (a) Show that ampere-hours areactually a unit of charge. (Do this on paper. Your instructor mayask you to turn in thi…

1.Conceptual Question – Limit answer to space provided belowWhile in an inertial

1.Conceptual Question – Limit answer to space provided belowWhile in an inertial reference frame, you observe an object to be rotating in one direction with a constant angular spe…

1.Conceptual Question – Limit answer to space provided belowWhile in an inertial

1.Conceptual Question – Limit answer to space provided belowWhile in an inertial reference frame, you observe an object to be rotating in one direction with a constant angular spe…

1.Conservation of Mechanical Energy & Projectile Motion A skier of mass 70 kg st

1.Conservation of Mechanical Energy & Projectile Motion A skier of mass 70 kg starts from rest at the top of a slope and skis down an elevation of 30 m, as shown in Fig. (1.1)…

1.Consider a blood-flow sensor placed around the artery in thefigure below. Assu

1.Consider a blood-flow sensor placed around the artery in thefigure below. Assume the artery has a radius of 2.2 mm and the magnetic field is B =0.051 T. (a) If the blood speed i…