Engineering analysis
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a) A mass m hanging from a spring with spring constant k is pulled down 4 cm and
a) A mass m hanging from a spring with spring constant k is pulled down 4 cm and released, and oscillates with a frequency of 10 Hz. If this mass is doubled to…
a) A metal can containing condensed mushroom soup has a mass of 250g, a height o
a) A metal can containing condensed mushroom soup has a mass of 250g, a height of 16.9cm, and a diameter of 6.31cm. It is placed at rest on its side at the top of a 2.99m long inc…
a) A meter stick of uniform density has total mass 0.150 kg. The stick is balanc
a) A meter stick of uniform density has total mass 0.150 kg. The stick is balanced at the 30 cm mark with an object suspended by a string tied at the 15 cm mark. What is the mass …
a) A motor spins a disk (Idisk = 24.1 kg*m2) with a torque of 39 N*m, and a 18 N
a) A motor spins a disk (Idisk = 24.1 kg*m2) with a torque of 39 N*m, and a 18 N frictional force acts on the disk at a radius of 1.6 m. Attached to the disk at a radius of 44 m i…
a) A motorboat traveling on a straight course slows uniformly from 70 km/h to 40
a) A motorboat traveling on a straight course slows uniformly from 70 km/h to 40 km/h in a distance of 55 m . 1a) What is the magnitude of the boat’s acceleration? b) A rocket bla…
a) A nonreflective coating ( n = 1.48) covers the glass ( n = 1.52) of a camera
a) A nonreflective coating (n = 1.48) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of yellow-green light (wavelength in vacuum = 562…
a) A parallel-platecapacitor of dimensions 2.15 cm × 5.69 cm is separated by a1.
a) A parallel-platecapacitor of dimensions 2.15 cm × 5.69 cm is separated by a1.65 mm thickness of paper. Find the capacitance of this device.The dielectric constant for paper is …
a) A pellet with a mass of 0.5kg moves at a velocity of 10m/s and it collides wi
a) A pellet with a mass of 0.5kg moves at a velocity of 10m/s and it collides with another pellet rested with mass of 0.75kg. After collision, both pellets move together along a h…
a) A pendulum consists from a massless rod with spherical bodies on both ends. L
a) A pendulum consists from a massless rod with spherical bodies on both ends. Length of the rod is l. Masses are given on the picture. The distance from the axis of rotation to t…
a) A person has her near-point (NP) at a distance of 1.5 m. What optical power (
a) A person has her near-point (NP) at a distance of 1.5 m. What optical power (in Diopters) does she need to have her vision corrected? b) A slit formed by an incompletely shut c…
a) A person is riding on a Ferris wheel of radius r. He starts at the lowest poi
a) A person is riding on a Ferris wheel of radius r. He starts at the lowest point of the wheel. When the wheel makes on complete revolution, is the net work done by the gravitati…
a) A person is to be fitted with bifocals. She can see clearly when the object i
a) A person is to be fitted with bifocals. She can see clearly when the object is between 26.0cm and 1.6m from the eye. Since the upper portion of the bifocals should be designed …
a) A photon ofwavelength 486.1 nm is emitted. What transition of the electronpro
a) A photon ofwavelength 486.1 nm is emitted. What transition of the electronproduced the photon? b) A photon of energy 10.2 eV interacts with the atom. If thephoton is absorbed, …
a) A physics lab is demonstrating the principles of simple harmonic motion (SHM)
a) A physics lab is demonstrating the principles of simple harmonic motion (SHM) by using a spring affixed to a horizontal support. The student is asked to find the spring constan…
a) A projectile launcher is set up in lab at a height of 1.05 meters above the l
a) A projectile launcher is set up in lab at a height of 1.05 meters above the lab floor. A projectile is launched with an initial speed of 1.07 m/s at an angle of 49 degrees abov…
a) A projectile of mass m = 7.98 kg is fired straight upward twice, both times a
a) A projectile of mass m = 7.98 kg is fired straight upward twice, both times at initial speed vo = 68.2 m/s. The first time there is no air friction, and the projectile reaches …
a) A qantity of heat Q= 200J is released from a heat engine into the environment
a) A qantity of heat Q= 200J is released from a heat engine into the environment, which is at a temperature Te. Make a chart listing how much entropy (delta S) this corresponds to…
a) A railroad tank car is cleaned by lling it with superheatedsteam at 200C and
a) A railroad tank car is cleaned by lling it with superheatedsteam at 200C and 2 bar. A mechanic inadvertently leaves the carsealed full of hot steam, with no pressure relief val…
a) A ray of light 480nm wavelength in air (n=1) makes an angleof incidence, 30.0
a) A ray of light 480nm wavelength in air (n=1) makes an angleof incidence, 30.0 degrees, as it enters clear ice (n=1.309), Findi) the angle of refraction, ii) the speed of light …
a) A shop sign weighing 210N hangs from the end of a uniform180-N beam as shown
a) A shop sign weighing 210N hangs from the end of a uniform180-N beam as shown in (Figure 1) . b) Find the horizontal force exerted by the hinge on the beam at the wall. Express …
a) A single 30000 kg railroad hopper car is freely rolling on a level track with
a) A single 30000 kg railroad hopper car is freely rolling on a level track with an initial speed of 5 m/s. As it rolls under a loading platform, 90000 kg of coal is dumped into t…
a) A single 30000 kg railroad hopper car is freely rolling on a level track with
a) A single 30000 kg railroad hopper car is freely rolling on a level track with an initial speed of 5 m/s. As it rolls under a loading platform, 90000 kg of coal is dumped into t…
a) A single transmission line is 40m above the surface of the Earth and carries
a) A single transmission line is 40m above the surface of the Earth and carries 2000A of curent. What is the peak magnetic field at ground level directly under the wire? b) Suppos…
a) A siren produces a sound that has an intensity level of 120dB at a distance o
a) A siren produces a sound that has an intensity level of 120dB at a distance of 2.0 m. Treat the siren as a point source ofspherical waves. Find the intensity in decibels heard …
a) A skier traveling at 28 m/s encounters a 24 degree slope. If you could ignore
a) A skier traveling at 28 m/s encounters a 24 degree slope. If you could ignore friction, to the nearest meter, how far up the hill does he go? b) If the coefficient of kinetic f…
a) A solid cylindrical pulley with a radius of 15.0 cm is spinning at a rate of4
a) A solid cylindrical pulley with a radius of 15.0 cm is spinning at a rate of45.0 rpm. If the mass of the pulley is 30.0 kg, what is the pulley's angular momentum? b) The pulley…
a) A source of electromagnetic waves radiates power uniformly in all directions
a) A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 5.00 km from the source, a detector measures the intensity …
a) A spaceship flies by Earth at 0.90 c . It fires a rocket at 0.73 c in the bac
a) A spaceship flies by Earth at 0.90c. It fires a rocket at 0.73c in the backward direction relative to the spaceship. What is the velocity of the rocket relative to Earth? c b) …
a) A square coil (not a solenoid!) has N = 3920 turns and side s = 3.59 m carrie
a)A square coil (not a solenoid!) hasN=3920turns and sides=3.59m carries currentI=72.3A. Find the magnetic field at the center of the square. NOTE: A square is four line segments.…
a) A stationary transducer sends an ultrasound signal of 3.500 MHz that is refle
a) A stationary transducer sends an ultrasound signal of 3.500 MHz that is reflected from a moving object that is located in a fluid (velocity of sound in fluid is 1520 m/s). The …
a) A stellar-mass black hole has the mass of the sun (1.9 x 1033 grams), and a r
a) A stellar-mass black hole has the mass of the sun (1.9 x 1033 grams), and a radius of 2.9 kilometers. i) What would be the tidal acceleration across a human at a distance of 10…
a) A stellar-mass black hole has the mass of the sun (1.9 x 1033 grams), and a r
a) A stellar-mass black hole has the mass of the sun (1.9 x 1033 grams), and a radius of 2.9 kilometers. i) What would be the tidal acceleration across a human at a distance of 10…
a) A thin, uniform rod has a length of 0.30m, mass of 0.15kg, and is attached by
a) A thin, uniform rod has a length of 0.30m, mass of 0.15kg, and is attached by a hinge at the point P. A uniform magnetic field B = 0.55T is directed perpendicular to the plane …
a) A toy car of mass m = 1.46 kg is on a circular track of radius r = 13.1 cm. T
a) A toy car of mass m = 1.46 kg is on a circular track of radius r = 13.1 cm. The car starts at initial speed vo = 1.03 m/s, and accelerates at a constant rate to final speed vf …
a) A transformer draws 28 W of power from a 220 V power line, stepping the volta
a) A transformer draws 28 W of power from a 220 V power line, stepping the voltage down to 8 V. What will be the equivalent resistance of the input circuit? b) The magnetic field …
a) A typical large asteroid in our solar system has an approximate mass of 1.0 x
a) A typical large asteroid in our solar system has an approximate mass of 1.0 x 1018 kg and an orbital speed of 18000 m/s. Determine the amount of kinetic energy possessed by thi…
a) A uniform disk is constrained to rotate about an axis passing through its cen
a) A uniform disk is constrained to rotate about an axis passing through its center and perpendicular to the plane of the disk. If the disk starts from rest and is then brought in…
a) A uniform meter stick with a mass of 172 g is supported horizontally by two v
a) A uniform meter stick with a mass of 172g is supported horizontally by two vertical strings, one at the 0 cm mark and the other at the 90 cm mark What is the tension in the str…
a) A uniform steel beam of length 5.8 m has a mass of 420 kg. One end of the bea
a) A uniform steel beam of length 5.8 m has a mass of 420 kg. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached betwe…
a) A weight is connected to a spring. When the system is in balance it is still
a) A weight is connected to a spring. When the system is in balance it is still (not moving). When the weight is moved from it's balance point and then released (at the time t=0 s…
a) A wire 15.0 m long and having a mass of 100 g is stretched under a tension of
a) A wire 15.0 m long and having a mass of 100 g is stretched under a tension of 200 N. If two disturbances, separated in time by 0.030 s, are generated one at each end of the wir…
a) A wire 15.0 m long and having a mass of 100 g is stretched under a tension of
a) A wire 15.0 m long and having a mass of 100 g is stretched under a tension of 200 N. If two disturbances, separated in time by 0.030 s, are generated one at each end of the wir…
a) A wire made from zinc with a cross-section of diameter 0.810 mm carries a cur
a) A wire made from zinc with a cross-section of diameter 0.810 mm carries a current of 10.0 A. Calculate the "areal current density"; in other words, how many electrons per squar…
a) A wooden block of mass M = 2.64 kg is rest on a frictionless, horizontal tabl
a) A wooden block of mass M = 2.64 kg is rest on a frictionless, horizontal table attached to the end of an unstretched spring (k = 237 N/m). A bullet of mass m = 8.51 g is fired …
a) A10 kg block is hanging from a rope. Find the (magnitude of the) tension in t
a) A10 kg block is hanging from a rope. Find the (magnitude of the) tension in the rope when i) the block is stationary. ii) the block is moving upward with a steady speed of 5.0 …
a) According to Einstein\'s general theory of relativity, which of the following
a) According to Einstein's general theory of relativity, which of the following statement is true? a) A clock on the ground of earth runs slower than a clock on a GPS satellite. b…
a) According to the Bohr model of the hydrogen atom, energy levels are given as
a) According to the Bohr model of the hydrogen atom, energy levels are given as En= -13.6 eV/n2 . Determine hydrogen’s first four energy levels. n=4, E = ___________ n=3, E = ____…
a) According to the attached graph, the minimum size of an object that could cau
a) According to the attached graph, the minimum size of an object that could cause a mass extinction is a little less than _____. A. 10 m B. 100 m C. 10 km D. 100 km b) Based on t…
a) According to the attached graph, the minimum size of an object that could cau
a) According to the attached graph, the minimum size of an object that could cause a mass extinction is a little less than _____. A. 10 m B. 100 m C. 10 km D. 100 km b) Based on t…
a) After the switch S is closed, find the maximum charge on each capacitor. b) A
a)After the switchSis closed, find the maximum charge on each capacitor. b)After the switchSis closed, find the maximum potential difference across each capacitor. c)After the swi…
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