Engineering analysis

1) The mechanical energy of an object of mass 10 kg is dropped from a height of

1) The mechanical energy of an object of mass 10 kg is dropped from a height of 100 m is 9,800 J. a) At a time of his fall the object of 10 kg mass has a potential energy of 800 J…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The missing mass problem is a) starlight is observed, but there is no evidenc

1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight fol…

1) The molecular mass of helium is 4 g/mol, the Boltzmann’s constant is 1.38066

1) The molecular mass of helium is 4 g/mol, the Boltzmann’s constant is 1.38066 × 10-23 J/K, the universal gas constant is 8.31451 J/K · mol, and Avogadro’s number is 6.02214 × 10…

1) The more distant a galaxy, a) the lower its redshift b) the farther into its

1) The more distant a galaxy, a) the lower its redshift b) the farther into its past we observe c) the older the galaxy d) the larger the galaxy e) all of the above 2) The Cosmolo…

1) The more distant a galaxy, a) the lower its redshift b) the farther into its

1) The more distant a galaxy, a) the lower its redshift b) the farther into its past we observe c) the older the galaxy d) the larger the galaxy e) all of the above 2) The Cosmolo…

1) The net Force on an object and its acceleration can have different directions

1)The net Force on an object and its acceleration can have different directions according to Newton's Second Law. a)True b) False 2)Car A runs with a constant velocity v; car B ru…

1) The net force acting on your car Points radially inward, toward the center of

1) The net force acting on your car Points radially inward, toward the center of the track. Points radially outward, away from the center of the track. Points forward, in the same…

1) The notions of “capacity†and “saturation flow rate†are same. a. True

1) The notions of “capacity†and “saturation flow rate†are same. a. True b. False 2) What is “average speed†we use in the relationship where flow is density times speed…

1) The nucleus of an atom consists of protons and neutrons (no electrons). A nuc

1) The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons, while a nitrogen-14 nucleus comp…

1) The observed evidence we have for black holes includes 2) An astronaut\'s nor

1) The observed evidence we have for black holes includes 2) An astronaut's normal weight it 600 newtons. How much will she weigh while orbiting in a satellite at 12,000 kilometer…

1) The parallel axis theorem provides a useful way to calculate the moment of in

1) The parallel axis theorem provides a useful way to calculate the moment of inertia I about an arbitrary axis. The theorem states that I = Icm + Mh2, where Icm is the moment of …

1) The position of an object moving along a straight line is given by x(t) = -3.

1) The position of an object moving along a straight line is given by x(t) = -3.0t^3 + 2.0t^3 - 1.0t, where x is in meters, t > or equal 0, t is in seconds. a) The average acce…

1) The position of an object moving along a straight line is given by x(t) = -3.

1) The position of an object moving along a straight line is given by x(t) = -3.0t^3 + 2.0t^3 - 1.0t, where x is in meters, t > or equal 0, t is in seconds. a) The average acce…

1) The position of an object that is oscillaing on an idel spring is glven by th

1) The position of an object that is oscillaing on an idel spring is glven by the equation Attire t = 0.851 s, (a) how fast is the object moving? (b) what is the magnitude of the …

1) The potential (relative to infinity) at the midpoint of a square is 3.0 V whe

1) The potential (relative to infinity) at the midpoint of a square is 3.0 V when a point charge of +Q is located at one of the corners of the square. What is the potential (relat…

1) The potential at the surface of a 15cm radius sphere is 5.0kV What is the cha

1) The potential at the surface of a 15cm radius sphere is 5.0kV What is the charge on the sphere, assuming it's distributed in a spherically symmetric way? 2)You're developing a …

1) The potential energy of a particle is given in Joules as a function of its po

1) The potential energy of a particle is given in Joules as a function of its position x: U(x) = 5(x 2)^2 + 2x, where x is in meters. If the total mechanical energy of the particl…

1) The potential of the x-ray tube determines the number of electrons leaving th

1) The potential of the x-ray tube determines the number of electrons leaving the cathode the energy of the electrons impinging on the target the energy of the characteristic x-ra…

1) The primary lens of a refracting telescope is 20cm in diameter and has a foca

1) The primary lens of a refracting telescope is 20cm in diameter and has a focal length of 1m. If the telescope is pointed at a bird 20cm long and 20m away, Find A) The location …

1) The purpose of the tension protractor apparatus is to? (could be more than on

1) The purpose of the tension protractor apparatus is to? (could be more than one answer) A) demonstrate the use of pulleys with multiple forces. B) visualize equilibrium on an ob…

1) The purpose of the tension protractor apparatus is to? (could be more than on

1) The purpose of the tension protractor apparatus is to? (could be more than one answer) A) demonstrate the use of pulleys with multiple forces. B) visualize equilibrium on an ob…

1) The ratio of the speed of sound in water to the speed of sound in air is a) l

1) The ratio of the speed of sound in water to the speed of sound in air is a) less than 2 b) between 2 and 3 c) between 3 and 4 d) between 4 and 5 2) For the same frequency which…

1) The refractive index of a transparent material can be determined by measuring

1) The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If c= 41.1° what is the index of refraction of the ma…

1) The simple reaction below is known to follow first order kinetics, What can y

1) The simple reaction below is known to follow first order kinetics, What can you say about the rate of production of the product P at different time points in the reaction (10 s…

1) The sinusoidal voltage output from the AC generator oscillates between 500 V

1) The sinusoidal voltage output from the AC generator oscillates between 500 V and -500 V. The circuit for an ideal transformer is constructed with a generator, transformer and a…

1) The solid dot shown in the figure above is a pivot point. The board can rotat

1)The solid dot shown in the figure above is a pivot point. The board can rotate about the pivot. Which force shown exerts the largest magnitude torque on the board? Which force s…

1) The speed is ..... zero at 20 sec. 2) The x-acceleration is ..... zero at 10

1) The speed is ..... zero at 20 sec. 2) The x-acceleration is ..... zero at 10 sec . 3) The x-acceleration is ..... zero at 36 sec. 4) The speed at 70 sec is ..... the speed at 5…

1) The speed of light in vacuum is about 6.7 x 108 mph. In which of the followin

1) The speed of light in vacuum is about 6.7 x 108 mph. In which of the following cases are relativistic effects detectable? Select all that apply. OA student running at 3 mph An …

1) The speed of sound is 343 m/s. A car’s horn produces a frequency of 400 Hz wh

1) The speed of sound is 343 m/s. A car’s horn produces a frequency of 400 Hz when at rest. If the car is traveling West at 30 m/s toward an observer, what velocity must an observ…

1) The sun is 18 degrees above the horizon. It makes a 54m-long shadow of a tall

1) The sun is 18 degrees above the horizon. It makes a 54m-long shadow of a tall tree. How high is the tree? 2) Here is a simple example. The inhabitants of a small island begin e…

1) The suspension system of a 1800 kg automobile \"sags\" 9.6 cm when the chassi

1) The suspension system of a 1800 kg automobile "sags" 9.6 cm when the chassis is placed on it. Also, the oscillation amplitude decreases by 46% each cycle. Estimate the values o…

1) The switch has been open for a long time when at time t = 0, the switch is cl

1) The switch has been open for a long time when at time t = 0, the switch is closed. What is I1(0), the magnitude of the current through the resistor R1 just after the switch is …

1) The switch has been open for a long time when at time t = 0, the switch is cl

1) The switch has been open for a long time when at time t = 0, the switch is closed. What is I1(0), the magnitude of the current through the resistor R1 just after the switch is …

1) The switch has been open for a long time when at time t = 0, the switch is cl

1) The switch has been open for a long time when at time t = 0, the switch is closed. What is I4(0), the magnitude of the current through the resistor R4 just after the switch is …

1) The temperature of a solid is brought to the melting point. While the solid i

1) The temperature of a solid is brought to the melting point. While the solid is melting,             a) the temperature remains the same until it is melted.             b) the m…

1) The temperature of a solid is brought to the melting point. While the solid i

1) The temperature of a solid is brought to the melting point. While the solid is melting,             a) the temperature remains the same until it is melted.             b) the m…

1) The temperature of the visible surface of the sun, the photosphere, is around

1) The temperature of the visible surface of the sun, the photosphere, is around 5580 C. (The temperature of the inside of the sun is much hotter.). At what frequency does the Sun…

1) The thermostat in a room reads 68 oF. What is this room temperature in the un

1) The thermostat in a room reads 68 oF. What is this room temperature in the unit of oC. 2)Calculate the speed of sound wave traveling in the room that the thermostat reads in qu…

1) The thermostat in a room reads 68 oF. What is this room temperature in the un

1) The thermostat in a room reads 68 oF. What is this room temperature in the unit of oC.? 2) Calculate the speed of sound wave traveling in the room that the thermostat reads in …

1) The two identical uniform bars are released from rest from the position shown

1) The two identical uniform bars are released from rest from the position shown in the vertical plane. Determine the angular velocity omega of AB when the bars become collinear. …

1) The units of magnetic dipole moment are (explain): A. Ampere B. Ampere*meter

1) The units of magnetic dipole moment are (explain):        A. Ampere        B. Ampere*meter        C. Ampere*meter^2        D. Ampere/meter        E. Ampere/meter^2 A copper wir…

1) The upper end of a 3.40-m-long steel wire is fastened to the ceiling, and a 4

1) The upper end of a 3.40-m-long steel wire is fastened to the ceiling, and a 41.0-kg object is suspended from the lower end of the wire. You observe that it takes a transverse p…

1) The vectors A~and B~ are given by A~ = 6.65ˆi+6.22 ˆ? and B~ = -4.94ˆi+5.66 F

1) The vectors A~and B~ are given by A~ = 6.65ˆi+6.22 ˆ? and B~ = -4.94ˆi+5.66 Find the scalar product A~· B~ Find the angle between A~and B~. answer in degrees 2) Vector A~ has c…

1) The voltage is measured from 0 on up to as much as 20. Between which two poin

1) The voltage is measured from 0 on up to as much as 20. Between which two points is this circuit grounded? 2) For a given voltage and current, give the resistances (internal and…

1) The voltage is measured from 0 on up to as much as 20. Between which two poin

1) The voltage is measured from 0 on up to as much as 20. Between which two points is this circuit grounded? a. between c and d b. between b and c c. between a and b d. between a …