Through what potential difference ΔV must electrons be accelerated (from rest) so that they will have...

Through what potential difference ΔV must electrons be accelerated (from rest) so that they will have the same wavelength as an x-ray of wavelength 0.145 nm ? Use 6.63×10−34 J⋅s for Planck's constant, 9.11×10−31 kg for the mass of an electron, and 1.60×10−19 C for the charge on an electron. Express your answer using three significant figures.

A given inventory item has a per-year holding cost of $360.00. One method of shipping this...

A given inventory item has a per-year holding cost of $360.00. One method of shipping this item is 4 days faster than the other, but its shipping cost is $1.00 more per unit. How much more expensive overall is the slower method compared to the faster method? (Include the pennies in your answer)

A student decides to move a box of books into her dormitory room by pulling on...

A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 156 N at an angle of 27.0° above the horizontal. The box has a mass of 20.0 kg, and the coefficient of kinetic friction between box and floor is 0.300. (a) Find the acceleration of the box. ____m/s2 (b) The student now starts moving the box up a 10.0° incline, keeping her...

Assume that an investor wishes to purchase a 20-year bond with a maturity value of $1,000...

Assume that an investor wishes to purchase a 20-year bond with a maturity value of $1,000 and the coupon payments is 7% of maturity value. The interest is paid semiannually. If the investor requires a 10 percent simple yield to maturity on this investment, what is the maximum price she should be willing to pay for the bond? (Round the answer to the nearest whole number.)​ Group of answer choices $619 $674 $743 $828 $902

You are given a train engine and three boxcars, which are all at the Chicago train...

You are given a train engine and three boxcars, which are all at the Chicago train station. There are two boxcars in Milwaukee. There is a train track connecting Minneapolis to Milwaukee, and one connecting Milwaukee to Chicago. Your goal is to couple the five boxcars with the engine, move them all to Minneapolis, and take the engine back to Chicago. You can couple a boxcar with an engine if they are both at the same train station. You can...

A 41.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from...

A 41.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from the shore. The child slips with each step on the frictionless ice and remains the same distance from the shoreline. Egged on by his parents, he throws a 0.300-kg ball he is carrying toward the center of the lake with a horizontal speed of 2.00 m/s, in the direction opposite that of the shoreline. (The speed of the ball is relative to the lake.)...

Jeanette, mass 70 kg, is skiing down an incline of 38°. The snow is dry and...

Jeanette, mass 70 kg, is skiing down an incline of 38°. The snow is dry and the skis are hickory. a) What is Jeanette's acceleration? b) If the snow melts and becomes wet, what is the new acceleration? Material Coefficient of Static Friction Coefficient of Kinetic Friction Waxed hickory skis on dry snow 0.06 0.04 Waxed hickory skis on wet snow 0.20 0.14

The function f(x) = 900 represents the rate of flow of money in dollars per year....

The function f(x) = 900 represents the rate of flow of money in dollars per year. Assume a 5-year period at 5% compounded continuously. Find the present value at t = 5.

A 1,160-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes...

A 1,160-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,800-kg truck moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east.   (a) What is the velocity of the truck right after the collision? (b) How much mechanical energy is lost in the collision? c) Account for this loss in energy.

6a.) a tumour located at a depth of 10cm is treated using a non-isocentric technique with...

6a.) a tumour located at a depth of 10cm is treated using a non-isocentric technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5cm x 5cm beam. Compute the maximum dose received anywhere in the patient's anatomy. b.) at what depth does the maximum dose occur? explain. c.) compute the dose at a depth of 5 cm along the beam axis

Identify three different standards related to reading and writing materials, including digital tools and resources, needed...

Identify three different standards related to reading and writing materials, including digital tools and resources, needed to customize and personalize learning activities to meet the various learning styles of students during implementation of the strategy

The data in the table give sales revenues and costs and expenses for a mining company...

The data in the table give sales revenues and costs and expenses for a mining company for various years. Year Sales Revenue (millions) Costs and Expenses (millions) 2006 $1.6928 $2.4105 2007 2.5097 2.4412 2008 2.8313 2.6378 2009 2.6936 2.9447 2010 3.3802 3.5344 2011 3.5507 3.8171 2012 3.7456 4.2587 2013 4.0797 4.8769 2014 4.3329 4.9088 2015 4.4070 4.6771 2016 3.9759 4.9025 Assume that sales revenue for the company can be modeled by R(t) = −0.031t2 + 0.686t + 0.179 where t...

Contractor has 3cy and 5 cy shovel; excavate 50,000 bcy of hard clay in 30 days...

Contractor has 3cy and 5 cy shovel; excavate 50,000 bcy of hard clay in 30 days of 8 hours each. average height is 9 feet, angle of swing is 70 degrees; 3 cy maximum digging is 20 feet; 5 cy maximum is 30 ft. efficiency factor is 30 min hour. How many days to complete the job?

Consider a manufacturer's claim that bricks produced by a new and more efficient process have amean...

Consider a manufacturer's claim that bricks produced by a new and more efficient process have amean compressive strength greater than 50.0 (measured in units of 100 pounds per square inch).Bricks that do not meet this standard are considered nonconforming and will not be used by thecustomer. From past experience, it is known that the mean compressive strength of bricks is normallydistributed with a standard deviation of 6. The bricks will not be accepted unless we can bereasonably sure that the...

A parallel capacitor type A chopper operates at 600 Hz from a 72 V battery and...

A parallel capacitor type A chopper operates at 600 Hz from a 72 V battery and feeds to a load of 10 A. If the turn-off time of main SCR is 45 µs and that of auxiliary SCR is 60 µs. Determine the values of commutating components. Assume a 100% safety margin for turn-off times of main and auxiliary SCRs.

(5) Let f(x, y) = −x^2 + 2x − 3y^3 + 6y^2 − 3y. (a) Find...

(5) Let f(x, y) = −x^2 + 2x − 3y^3 + 6y^2 − 3y. (a) Find both critical points of f(x, y). (b) Compute the Hessian of f(x, y). (c) Decide whether the critical points are saddle-points, local minimums, or local maximums.

What are the advantages of outsourcing non-critical, and sometimes even critical, value chain activities?

What are the advantages of outsourcing non-critical, and sometimes even critical, value chain activities?

Present and future value tables of $1 at 9% are presented below.     PV of $1...

Present and future value tables of $1 at 9% are presented below.     PV of $1 FV of $1 PVA of $1 FVAD of $1 FVA of $1 1 0.91743 1.09000 0.91743 1.0900 1.0000 2 0.84168 1.18810 1.75911 2.2781 2.0900 3 0.77218 1.29503 2.53129 3.5731 3.2781 4 0.70843 1.41158 3.23972 4.9847 4.5731 5 0.64993 1.53862 3.88965 6.5233 5.9847 6 0.59627 1.67710 4.48592 8.2004 7.5233    Mustard's Inc. sold the rights to use one of its patented processes that will result...

describe in detail how prokaryotic cells and eukayotic cells repair thymine dimers

describe in detail how prokaryotic cells and eukayotic cells repair thymine dimers

Explain the difference between absorption and adsorption in your own words.  Describe a situation where a piece...

Explain the difference between absorption and adsorption in your own words.  Describe a situation where a piece of PPE using adsorption would be preferred over absorption.