Engineering analysis

1.Scientists are drilling a hole in the ocean floor to learn more about the Eart

1.Scientists are drilling a hole in the ocean floor to learn more about the Earth's history. Currently, the hole is in the same shape of a cylinder whose volume is approximately 4…

1.Several people are riding in a hot-air balloon. The combined mass of the peopl

1.Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 310 kg. The balloon is motionless in the air, because the downward-acting weight o…

1.Show that for any natural number n, 7 | n^ 7 - n. 2. Show that for any natural

1.Show that for any natural number n, 7 | n^ 7 - n. 2. Show that for any natural number n, 1^2 + 2^2 + ... + n^2 = n(n+1)(2n+1)/6 3. Show that if f:X -->Y and g: Y --> Z are…

1.Star A is 100 light years from Earth. It is 25 times brighter than star B, an

1.Star A is 100 light years from Earth. It is 25 times brighter than star B, an identical star. How much further is star B than star A from the Earth? a.50 light years from earth …

1.Starting from a point you run 200m east(+ ve x direction) at an average speed

1.Starting from a point you run 200m east(+ve x direction) at an average speed of 5m/s and then run 280m west at an average speed of 4/s to a post. Calculate (a)Your average speed…

1.Starting from a point you run 200m east(+ ve x direction) at an average speed

1.Starting from a point you run 200m east(+ve x direction) at an average speed of 5m/s and then run 280m west at an average speed of 4/s to a post. Calculate (a)Your average speed…

1.State in words and in an equation the Universal Law of Gravity. 2.Gravity is o

1.State in words and in an equation the Universal Law of Gravity.   2.Gravity is one of the four fundamental forces of nature. What are the other three? 3.In the field of astronom…

1.State two parameters that control the concentration of intrinsic carriers in a

1.State two parameters that control the concentration of intrinsic carriers in a semiconductor? 2.Using Boltzmann approximation ,print the equation for electron concentration n. a…

1.Staying inside the solenoid, the magnetic field generally decreases in magnitu

1.Staying inside the solenoid, the magnetic field generally decreases in magnitude as you move away from the exact center of the solenoid along a direction perpendicular to the ax…

1.Sue weighs 657 N on Earth. When she visits a distant planet, her weight is 77.

1.Sue weighs 657 N on Earth. When she visits a distant planet, her weight is 77.1 N. What is the value of g on that planet? On that planet, g = _____ m/s2. 2.A piano is at rest on…

1.Suppose a carbon atom is ionized and given a net positive charge of 1 elementa

1.Suppose a carbon atom is ionized and given a net positive charge of 1 elementary charge. The mass of the carbon ion is approximately 2x10-26 kg. If the positively charged ion is…

1.Suppose that a simple pendulum consists of a small 75 g bob at the end of a co

1.Suppose that a simple pendulum consists of a small 75 g bob at the end of a cord of negligible mass. If the angle ? between the cord and the vertical is given by ? = (0.071 rad)…

1.Suppose that the two points that you or Eratosthenes used were at latitudes 35

1.Suppose that the two points that you or Eratosthenes used were at latitudes 35d 15m 0s and 36d 30m 0s, that they were directly N-S from each other, and that the distance between…

1.Suppose the combined weight of Santa and your large gift so big and heavy that

1.Suppose the combined weight of Santa and your large gift so big and heavy that it increased the earth’s wobble and tilted the planet on its axis to 24 degrees. Would the winter …

1.Suppose there is a non-uniform electric field and you measure the electric pot

1.Suppose there is a non-uniform electric field and you measure the electric potential at two different locations along the z-axis. The first location has a position value z1=0.25…

1.Suppose two +1.0 nC charges are separated by 0.5 m from each other along the x

1.Suppose two +1.0 nC charges are separated by 0.5 m from each other along the x-axis. Calculate the net electric field (magnitude and direction) 0.5 m to the right of the charge …

1.Suppose you put positive charge on an insulated metal box (actually, remove el

1.Suppose you put positive charge on an insulated metal box (actually, remove electrons from the box). Since it is a conductor, the charges will rearrange. - The greatest accumula…

1.Suppose you weigh 986 N. How much force does the Earth exert on you, if any? i

1.Suppose you weigh 986 N. How much force does the Earth exert on you, if any? it cannot be determined 986 N 98.6N none 2. Suppose you have a car traveling down the road at consta…

1.Suppose your parents are visiting and you all go for a walk. You walk north 25

1.Suppose your parents are visiting and you all go for a walk. You walk north 25 m, then turn 60° to your right and walk another 34 m. How far are you from home at this point? Dra…

1.Suppose your parents are visiting and you all go for a walk. You walk north 25

1.Suppose your parents are visiting and you all go for a walk. You walk north 25 m, then turn 60° to your right and walk another 34 m. How far are you from home at this point? Dra…

1.Take a wire and close it in a loop. Place the loop on the table in front of yo

1.Take a wire and close it in a loop. Place the loop on the table in front of you and imagine current flowing around the loop in a counterclockwise direction when viewed from abov…

1.Tetar traSC the merw bim should be applied for a period-the lurwdfiw ofth. SKW

1.Tetar traSC the merw bim should be applied for a period-the lurwdfiw ofth. SKW 2 In phase controlled rectification power factor PE) Compring with Comparing with the fa Mwave rec…

1.Tetar traSC the merw bim should be applied for a period-the lurwdfiw ofth. SKW

1.Tetar traSC the merw bim should be applied for a period-the lurwdfiw ofth. SKW 2 In phase controlled rectification power factor PE) Compring with Comparing with the fa Mwave rec…

1.The Gravitron is a carnival ride that spins up to 23 rpm (revolutions per minu

1.The Gravitron is a carnival ride that spins up to 23 rpm (revolutions per minute) that appears to pin its passengers against padded seats at it rotates at high speed. If the Gra…

1.The amount of sunlight falling on Earth is approximately 1350 W/m2 (watts per

1.The amount of sunlight falling on Earth is approximately 1350 W/m2 (watts per square meter). Estimate the energy produced by the Sun each hour. Compare it to something we can ge…

1.The asteroidbelt circles the sun between the orbits of Mars andJupiter. One as

1.The asteroidbelt circles the sun between the orbits of Mars andJupiter. One asteroid has a period of 5.0 earth years. a.What is the asteroid's orbital radius? b.What is the aste…

1.The average radius of the earth around the sun is 1.5x10 11 m. What is the ear

1.The average radius of the earth around the sun is 1.5x1011m. What is the earth's speed around the sun? 30.km/s 4.8km/s 29000km/s 0.76km/s Cannot be determined. 2. A person is st…

1.The beam shown has a mass of 120 kg. Determine the reactions at pinned support

1.The beam shown has a mass of 120 kg. Determine the reactions at pinned support A and smooth surface B. 2. The lever ABC is loaded and supported as shown. Determine the force exe…

1.The charge to mass ratio for a singly ionized benzene molecule is e/(78u)=1235

1.The charge to mass ratio for a singly ionized benzene molecule is e/(78u)=1235712.07908557C/kg. If a mass spectrometer operates with a magnetic field of B=0.013T and a fixed dis…

1.The circuit shown in the figure below is connected for 2.50 min. (Assume R 1 =

1.The circuit shown in the figure below is connected for 2.50 min. (Assume R1 = 9.00 , R2 = 1.20 , and V = 10.0 V.) (a) Determine the current in each branch of the circuit. (b) Fi…

1.The coil of wire in the drawing is a right triangle and is free to rotate abou

1.The coil of wire in the drawing is a right triangle and is free to rotate about an axis that is attached along side AC. The current in the loop is I = 5.39 A, and the magnetic f…

1.The compound eyes of bees and other insects are highly sensitive to light in t

1.The compound eyes of bees and other insects are highly sensitive to light in the ultraviolet portion of the spectrum, particularly light with a frequency between 6.0 1014 Hz and…

1.The compound eyes of bees and other insects are highly sensitive to light in t

1.The compound eyes of bees and other insects are highly sensitive to light in the ultraviolet portion of the spectrum, particularly light with a frequency between 6.0 1014 Hz and…

1.The dimensions or units for the quantity (Pressure * Volume) is the same as th

1.The dimensions or units for the quantity (Pressure * Volume) is the same as the dimensions or units of a.force b.energy c.energy/temperature d.force/temperature 2.According to t…

1.The electric field is measured all over the surface of a cylinder whose diamet

1.The electric field is measured all over the surface of a cylinder whose diameter is 8 cm and whose height is 20 cm, as shown in the diagram. At every location on the surface the…

1.The essential part of the Hot Wheels speed booster is made of two fast spinnin

1.The essential part of the Hot Wheels speed booster is made of two fast spinning, rubberized disks of radius r=0.046 m each. The toy car entering the booster is in direct contact…

1.The figure below shows the velocity of a simple harmonic oscillator as a funct

1.The figure below shows the velocity of a simple harmonic oscillator as a function of time. (a) Estimate the period. Estimate the magnitude of the maximum velocity. Estimate the …

1.The figure shows a box with mass m1 on a frictionless plane inclined at angle

1.The figure shows a box with mass m1 on a frictionless plane inclined at angle ?1. The box is connected via a cord of negligible mass to another box with mass m2 on a frictionles…

1.The following information is known about the steady flow of air through an adi

1.The following information is known about the steady flow of air through an adiabatic system: At section 1; T_1 = 556 R, p_1=28.0 psia At section 2; T_2 = 70 F,? T?_t2 =109 F, p_…

1.The following information is known about the steady flow of air through an adi

1.The following information is known about the steady flow of air through an adiabatic system: At section 1; T_1 = 556 R, p_1=28.0 psia At section 2; T_2 = 70 F,? T?_t2 =109 F, p_…

1.The following information is known about the steady flow of air through an adi

1.The following information is known about the steady flow of air through an adiabatic system: At section 1; T_1 = 556 R, p_1=28.0 psia At section 2; T_2 = 70 F,? T?_t2 =109 F, p_…

1.The following information is known about the steady flow of air through an adi

1.The following information is known about the steady flow of air through an adiabatic system: At section 1; T_1 = 556 R, p_1=28.0 psia At section 2; T_2 = 70 F,? T?_t2 =109 F, p_…

1.The force between two parallel wires carrying currents in thesame direction is

1.The force between two parallel wires carrying currents in thesame direction is? a) Repulsive, because the electrons in each wire repel eachother. b) Repulsive, because the magne…

1.The forward voltage drop across a diode demonstrates (a) _____________ tempera

1.The forward voltage drop across a diode demonstrates (a) _____________ temperature coefficient (tempco) a. zero b. positive c. either positive or negative d. negative 2.A silico…

1.The fundamental frequency for a 20-cm closed pipe when the speed of sound is 3

1.The fundamental frequency for a 20-cm closed pipe when the speed of sound is 340 m/s is ____. 4.25 Hz 825 Hz 425 Hz 8.25 Hz 1.The fundamental frequency for a 20-cm closed pipe w…

1.The hanging mass is referred to as M and it sets the centripetal force. True F

1.The hanging mass is referred to as M and it sets the centripetal force. True False 2. How will the desired centripetal force be set? A. By choosing a value for the hanging mass.…

1.The length of time the shutter is open when the film is exposed in a camera is

1.The length of time the shutter is open when the film is exposed in a camera is determined by a) focusing b) f-stop c) shutter speed d) focal length of the lens e) diameter of th…

1.The light from more distant galaxies is more redshifted because a.more distant

1.The light from more distant galaxies is more redshifted because a.more distant galaxies are traveling faster through space. b.the photons have been traveling through expanding s…

1.The magnetic field at the center of a 0.60-cm-diameter loop is 2.6mT . What is

1.The magnetic field at the center of a 0.60-cm-diameter loop is 2.6mT . What is the current in the loop?_________A A long straight wire carries the same current you found in part…

1.The minute hand on a watch is 2.0 cm long. a.What is the y -component of the d

1.The minute hand on a watch is 2.0 cm long. a.What is the y-component of the displacementvector of the tip of the minute hand from 8:00 to 8:20 A.M.? b.What is the displacement v…