Engineering analysis

1.) How many photons strike a patient being x-rayed, where an intensity of 1.75

1.)   How many photons strike a patient being x-rayed, where an intensity of 1.75 W/m2 illuminates 0.0750 m2 of her body for 0.270 s? The energy of the x-ray photons is 100 keV. 2…

1.) How much time does it take the object to reach the highest point in its traj

1.) How much time does it take the object to reach the highest point in its trajectory? 2.) how much time would it take the object to travel a horizontal distance of 6.00m from it…

1.) How much work is done on the external environment by 7 moles of a monatomic

1.) How much work is done on the external environment by 7 moles of a monatomic ideal gas initially at 20oC that is ISOBARICALLY expanded at 1 atm to 5 times its original volume? …

1.) How much work is done on the external environment by 7 moles of a monatomic

1.) How much work is done on the external environment by 7 moles of a monatomic ideal gas initially at 20oC that is ISOBARICALLY expanded at 1 atm to 5 times its original volume? …

1.) How much would you have to raise the temperature of a copper wire (originall

1.) How much would you have to raise the temperature of a copper wire (originally at 20 ?C) to increase its resistance by 18% ? 2.) Estimate how much energy is required to transmi…

1.) How much would you have to raise the temperature of a copper wire (originall

1.) How much would you have to raise the temperature of a copper wire (originally at 20?C) to increase its resistance by 18% ? 2.) A.) Estimate how much energy is required to tran…

1.) How would you connect a pair of multimeters to simultaneously measure curren

1.) How would you connect a pair of multimeters to simultaneously measure current and voltage for a circuit element of resistance R=750 ? This question allows two submissions. Con…

1.) I will rate highly and quickly for a detailed and accurate answer. (Answers

1.) I will rate highly and quickly for a detailed and accurate answer. (Answers absolutely must show all work and calculations). 2. Answers must round to no less than 6 decimal pl…

1.) I will rate highly and quickly for a detailed and accurate answer. (Answers

1.) I will rate highly and quickly for a detailed and accurate answer. (Answers absolutely must show all work and calculations). 2. Answers must round to no less than 6 decimal pl…

1.) IP A sled slides without friction down a small, ice-covered hill. On its fir

1.) IP A sled slides without friction down a small, ice-covered hill. On its first run down the hill, the sled starts from rest at the top of the hill and its speed at the bottom …

1.) IP A sled slides without friction down a small, ice-covered hill. On its fir

1.) IP A sled slides without friction down a small, ice-covered hill. On its first run down the hill, the sled starts from rest at the top of the hill and its speed at the bottom …

1.) If one could repeat the same experiment in the lab located on the moon (diff

1.) If one could repeat the same experiment in the lab located on the moon (different weight of the measured objects), then would the results be different? If yes, explain how muc…

1.) If the mass of certain object 69.1 kg, determine itsweight on the surface of

1.) If the mass of certain object 69.1 kg, determine itsweight on the surface of the Earth in Kilograms 2.) An ice hockey puck is a short circular cylinder, or disk,of vulcanized …

1.) If the original star rotated once in 34 days, find the angular speed of the

1.) If the original star rotated once in 34 days, find the angular speed of the neutron star. --------- ? in rad/s Under some circumstances, a star can collapse into an extremely …

1.) If the power factor for a series RLC circuit is 1.00, what is the phase cons

1.) If the power factor for a series RLC circuit is 1.00, what is the phase constant? 2.) In an ac circuit, the current in a capacitor leads the voltage by 90°. lags the voltage b…

1.) If the power factor for a series RLC circuit is 1.00, what is the phase cons

1.) If the power factor for a series RLC circuit is 1.00, what is the phase constant? 2.) In an ac circuit, the current in a capacitor leads the voltage by 90°. lags the voltage b…

1.) If the total momentum for a system is the same before and after the collisio

1.) If the total momentum for a system is the same before and after the collision, we say that momentum is conserved. If momentum were conserved, what would be the ratio of the to…

1.) If two different radioisotopes A and B have the same activity but the half-l

1.) If two different radioisotopes A and B have the same activity but the half-life of isotope A is larger than the half-life of isotope B, what is the relative magnitude of the n…

1.) If you move the coil in the figure toward the N pole of the large electromag

1.) If you move the coil in the figure toward the N pole of the large electromagnet, would an electric current be induced? Assume that electromagnet produce constant uniform magne…

1.) If you want to see a full response of the capacitor\'scharging, it will roug

1.) If you want to see a full response of the capacitor'scharging, it will roughly take 7-8 time constants to complete itscharging. Determine the appropriate length of timefor col…

1.) If you were to drop a ball, releasing it from rest, what information would b

1.) If you were to drop a ball, releasing it from rest, what information would be needed to predict how much time it would take for the ball to hit the ground? What assumptions mu…

1.) In a discharging circuit, it takes 1.67 s for the voltage across a capaictor

1.) In a discharging circuit, it takes 1.67 s for the voltage across a capaictor to drop from 6.0 V to 4.0 V. If the circuit resistance is 1000 Ohms, what is the capacitance? 2.) …

1.) In an electrostatic situation, which of the following statements about a con

1.) In an electrostatic situation, which of the following statements about a conductor is INCORRECT? 2) A capacitor C, a resistor R and a battery with EMF are connected in series …

1.) In some places, insect \"zappers\", with their blue lights, are a familiar s

1.) In some places, insect "zappers", with their blue lights, are a familiar sight on a summer's night. These devices use a high voltage to electrocute insects. One such device us…

1.) In the figure provided, a 283 kg crate is released from rest and hits the gr

1.) In the figure provided, a 283 kg crate is released from rest and hits the ground 2.36 m below after 6.09 s. What is the mass of the crate to the left of the pulley? Assume the…

1.) In the ground state of the Hydrogen atom, the energy of the electron is E 0

1.) In the ground state of the Hydrogen atom, the energy of the electron is E0 = -13.61 eV. What is the energy of the electron in the ground state of the He+ ion? 2.) What is the …

1.) In the hydrogen atom, how many magnetic orbital quantum numbers ( m l ) are

1.) In the hydrogen atom, how many magnetic orbital quantum numbers (ml) are possible if the principle quantum number, n = 2? a.) 0 b.) 1 c.) 2 d.) 3 e.) None of the above. 2.) In…

1.) It\'s the holiday break and you decide to take a road trip with your friends

1.) It's the holiday break and you decide to take a road trip with your friends to go work in New Orleans building a house for Habitat for Humanity. You have a friend who has a hu…

1.) Magnetic information on hard drives is accessed by a read head that must mov

1.) Magnetic information on hard drives is accessed by a read head that must move rapidly back and forth across the disk. The force to move the head is generally created with a vo…

1.) Maximum voltage problem. Resistors are assigned a power rating. If the power

1.) Maximum voltage problem. Resistors are assigned a power rating. If the power rating is exceeded significantly, the resistor will overheat and crack. Suppose you have a 11 k , …

1.) Multiple choice questions, for MOSFETS. Only one answer for each. [5 pts eac

1.) Multiple choice questions, for MOSFETS. Only one answer for each. [5 pts eachl a) Below threshold voltage and with a source to drainivoltäge applied, the MOSFET will not allow…

1.) Name a vector quantity and its magnitude. 2.) What is a scalar quantity? Giv

1.) Name a vector quantity and its magnitude. 2.) What is a scalar quantity? Give two examples. For Questions 3, 4, and 5, use the following values: A = 5.0 N at 135.0 degrees B =…

1.) Nerve cells transmit electrical signals through long tubular axons. These si

1.) Nerve cells transmit electrical signals through long tubular axons. These signals propagate due to a sudden rush of Na+ ions, each with charge +e, into their axons. If there a…

1.) Nuclear decay is modeled as an exponential process, i.e the well known equat

1.) Nuclear decay is modeled as an exponential process, i.e the well known equation that the number of nuclei in a radioactive bunch decreases exponentially. How does the intensit…

1.) On a sunny day at the beach, the reason the sand gets so hot and the water s

1.) On a sunny day at the beach, the reason the sand gets so hot and the water stays relatively cool is attributed to the difference in which property between water and sand? 2.) …

1.) Part A . A cyclotron is used to produce a beam of high-energy deuterons that

1.) Part A. A cyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. Deuterons are n…

1.) Part A An investigator places a sample 1.0 cm from a wire carrying a large c

1.) Part A An investigator places a sample 1.0 cm from a wire carrying a large current; the strength of the magnetic field has a particular value at this point. Later, she must mo…

1.) Pirates fire a projectile from a cannon at an initial velocity of 55.0 m/s a

1.) Pirates fire a projectile from a cannon at an initial velocity of 55.0 m/s and an initial angle 30.0 degrees above the horizontal. Assuming air resistance is negligible and th…

1.) Police lieutenants, examining the scene of an accident involving two cars, m

1.) Police lieutenants, examining the scene of an accident involving two cars, measure the skid marks of one of the cars, which nearly came to a stop before colliding, to be 79 m …

1.) Power dissipated by a resistor is given by P = ?VR2/R. However, your textboo

1.) Power dissipated by a resistor is given by P = ?VR2/R. However, your textbook also says that the power dissipated by a resistor is given by P = I2R. Is the power really propor…

1.) Protons are sent at .900 c down a tube of length 27.0 m. How long does it ta

1.) Protons are sent at .900 c down a tube of length 27.0 m. How long does it take for the protons to travel this distnace as measured in the lab? 2.) a rod is measured to be 15 c…

1.) Remember that when dealing with collisions in 2-dimensions, momentum is cons

1.) Remember that when dealing with collisions in 2-dimensions, momentum is conserved in each dimension. Two pucks are sliding on a frictionless tabletop. Block A (mass 3.92 kg) i…

1.) Represent the two forces and couple acting on the structure by a force F a)

1.) Represent the two forces and couple acting on the structure by a force F a) determine the force F in Cartesion vector form b) determine where the line of action of F intersect…

1.) Select the following which best describes the direction of an electric field

1.) Select the following which best describes the direction of an electric field. (a) The electric field points in the direction of higher energy. (b) The electric field points th…

1.) Since the charge-to-mass ratio of the electron is known veryaccurately (1.75

1.) Since the charge-to-mass ratio of the electron is known veryaccurately (1.759E11 C/Kg), the experiment you are about to do canbe used to measure the magnitude of a uniform mag…

1.) Sodium is a common element (in table salt!) and was one of the first to have

1.) Sodium is a common element (in table salt!) and was one of the first to have its spectrum identified when salt was sprinkled into a flame. A closer inspection revealed that th…

1.) Sonar is a device that uses reflected sound waves to measure underwater dept

1.) Sonar is a device that uses reflected sound waves to measure underwater depths. If a sonar signal has a frequency of 288 Hz and the speed of sound in water is 1.27 × 103 m/s, …

1.) Suppose 157 moles of a monatomic ideal gas undergoes an isothermal expansion

1.) Suppose 157 moles of a monatomic ideal gas undergoes an isothermal expansion as shown in the figure. (The horizontal axis is marked in increments of 4 m3.) How much work is do…

1.) Suppose after charging a 2.3 µF capacitor to 9 V, you connect it to the seco

1.) Suppose after charging a 2.3 µF capacitor to 9 V, you connect it to the second uncharged capacitor of 7 µF. What voltage will your voltmeter read across the second capacitor a…

1.) Suppose switches S1 and S2 are BOTH closed (allowing for current to flow thr

1.) Suppose switches S1 and S2 are BOTH closed (allowing for current to flow through) and the other switches are open. Determine the total current and power supplied by the voltag…