What would need to be the radius of curvature of the mirror

Assignment Help Physics
Reference no: EM13994763

About the years 214-212 BC, the Greek philosopher and scientist Archimedes is said to have repelled a Roman attack with a "death-ray" concave mirror, using sunlight to set the approaching fleet on fire. Assume an early morning attack from the East, with the Sun directly behind the ships. If the approaching fleet is 500 meters away, what would need to be the radius of curvature of the mirror in order to achieve maximum effect?

Reference no: EM13994763

Questions Cloud

For the purposes of experimentation : For the purposes of experimentation, Six Flags raised prices of tickets from $29.00 to $39.00 and then measured by how much sales changed. They found that profits increased using one month’s worth of data; however, over time Six Flags decided to reve..
Can given circuit be reduced to a single resistor : Can the circuit shown above be reduced to a single resistor connected to the batteries? Calculate the unknown currents I1, I2, and I3.
What role does oxygen play in cellular respiration : What would be the immediate result if the hydrogen ion concentration in the intermembrane space and the matrix reached equilibrium?
What do you feel are the strengths or weaknesses : Critique the argument she is making about how shock is being used to manipulate and regulate social behavior. What do you feel are the strengths or weaknesses? Give supportive evidence and a rational for whatever your opinion is
What would need to be the radius of curvature of the mirror : Assume an early morning attack from the East, with the Sun directly behind the ships. If the approaching fleet is 500 meters away, what would need to be the radius of curvature of the mirror in order to achieve maximum effect?
What is the ratio of the radius of curvatures for a proton : Find the radius of curvature, in meters, of the path of a proton accelerated. What is the ratio of the radius of curvatures for a proton an an electron traveling through this apparatus?
What is her optimal markup and what is her actual markup : Pauline has been selling 5,000 widgets per year for $8.50. When she raised the price to $9.50 she sold only 4,000 widgets. What is the elasticity of demand? If her marginal cost is $4 for each widget produced, what is her optimal markup and what is h..
Using these formulas calculate the amount of the bonus : Bonus arrangements take many forms. Suppose the bonus specifies that the bonus is 10% of the division's income before tax, but after the bonus itself. Calculate the amount of the bonus.
What does this indicate about the chargeback rates : Your local fast food chain with two dozen stores uses the company's internal corporate marketed department to produce signage, print ads, in-store displays, and so forth. Lately, store managers have been ordering more and more marketing services; the..

Reviews

Write a Review

Physics Questions & Answers

  Calculate the work done by the ant

A hardworking ant must supply 0.0500 N to pull a small piece of fruit at constant velocity over a distance of 8.00 cm up a small hill to the entrance of the colony, calculate the work done by the ant by pulling the piece of fruit up the hill

  You suspect that an unknown is acetanilide mp 1135-114oc

you suspect that an unknown is acetanilide mp 113.5-114oc. give a qualitative estimation of the melting point when the

  Find what emf is induced in the loop at that instant

Anelastic conducting material is stretched into a circular loop of15.0 cm radius. It is placed with itsplane perpendicular to a uniform 0.800T magnetic field. What emf is induced in the loop at that instant

  Determine the maximum height above ground he could reach

In a TV-show, an inexperienced doctor touches the electrodes of a defibrillator and gets thrown across the room, what is the maximum height above ground he could reach

  Estimate the angular speed of the planet

A planet orbits a star once every 2.99 107 s in a nearly circular orbit of radius 1.42 1011 m. With respect to the star, determine the angular speed of the planet

  Calculate the corresponding sound intensity level

A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.69 × 105 W. Calculate the corresponding sound intensity level

  How high the puck will shoot up from the plate

A curved plate of mass M is placed on the horizontal, frictionless plane as shown. How high the puck will shoot up from the plate

  What is the kinetic energy and speed of the electron

An electron is accelerated by the voltage 1000V. What is the kinetic energy and speed of the electron

  At what speed is the resistive force on the skydiver half

A skydiver of 75 kg mass has a terminal velocity of 60m/s. At what speed is the resistive force on the skydiver half that when at terminal speed

  What would the diffraction pattern look like

What would the diffraction pattern look like if the light you used was composed of several specific wavelengths

  Find ratio of velocities

Threshold freq. of metal isf0. When the light of freq. 2f0 is incident on the metal max velocity of electrons is v1 and v2

  Compute how much work does the boy do on the wagon

A boy pulls a friend in a little red wagon with constant speed. If the boy pulls with a force of 16 Newton for 12.4 meter, compute how much work does the boy do on the wagon

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd