Finish the the course at the sametime as the older runner

Assignment Help Physics
Reference no: EM13556408

An 18-year-old runner can complete a 10.0 km course with an average speed of 4.57 m/s. A 50-year-old runnercan cover the same distance with an average speed of 4.42 m/s. How much later (in seconds) should the younger runner start in order to finish the the course at the sametime as the older runner?

Reference no: EM13556408

Questions Cloud

Frequency sound get through walls floors-ceiling moreeasily : Apartment dweller will testify that bass notes are more distincty heard from music played in nearby apartments. Why do you supposelower frequency sound get through walls floors and ceiling moreeasily?
What was speedat which the ball left the quarterbacks hand : The longest recorded pass in an NFL game traveled 84 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speed at which the ball left the quarterbacks hand?
How would more oil in tank have affected the collapse time : A storage tank has a diameter of 80 ft, a height of 25 feet, and contains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank. The roof is flata..
What is the porosity of the sandstine : A piece of sandston with a bulk volume of 1.3 cc is contained ina 5-cc cell filled with helium at 760 mm Hg. Temperature ismaintained constant and the cell is opened to another evacuatedcell the same volume. The final pressure in the two vesselsis..
Finish the the course at the sametime as the older runner : An 18-year-old runner can complete a 10.0 km course with an averagespeed of 4.57 m/s. A 50-year-old runnercan cover the same distance with an average speed of 4.42 m/s. How much later (in seconds) should theyounger runner start in order to finish ..
What was it average speed inside the barrel : A bullet leaves the muzzle of a gun at a speed of 400m/s. The length of the gun barrel is 0.50m. Assuming the bullet was uniformly accelerated .
Directions of the velocity and the acceleration : Over a time interval of 1.89 years, thevelocity of a planet orbiting a distant star reverses direction,changing from +20.0 km/s to -17.7 km/s. Find the following values, include the correct algebraic sign with your answers to convey the directions..
Front of a convex mirrorand notices : A child holds a candy bar 10.0 cm in front of a convex mirrorand notices that the image is only one-half the size of the candybar. What is the radius of curvature of the mirror?
Represents the crests of water waves spreading : The picture below represents the crests of water wavesspreading out from a periodic disturbance in a pond. The phasedifference (in degrees) between points A and E is

Reviews

Write a Review

Physics Questions & Answers

  What is the direction of motion of the second car

On an icy (nearly frictionless) street a 600 kg car traveling straight east at 5 m/s collides with a 1000 kg car traveling straight north at 3 m/s. what is the direction of motion of the second car

  What is the correct banking angle of the road

A 40.0 ball of clay travelling east at 6.00 collides and sticks together with a 20.0 ball of clay travelling north at 5.00. What is the speed of the resulting ball of clay.

  Examine what is meant by the nuclear atomic model

A beam of electrons passes by a single slit and a beam of protons passes by a second, but identical slit. If the electrons and protons have the similar speed, that beam would experience the greatest amount of diffraction? Clarify your answer.

  Calculate the wavelength of light emitted

Electrons accelerated by a potential difference of 12.43 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the shortest possible wavelength

  Calculate the impulse experienced by the bullet

A 0.050-kg bullet is shot to the right toward a 1.5-kg target initially at rest on a flat frictionless surface. calculate the impulse experienced by the bullet

  What is the final temperature of coffee

A thermos contains 165 cm3 of coffee at 85° C. To cool the coffee, you drop two 14-g ice cubes into the thermos. The ice cubes are at first at 0° C and melt completely. What is the final temperature of coffee? Treat the coffee as if it were water.

  Find the ratio of surface areas

Two spherical balls have volumes in the ratio of 27:1. What is the ratio of their surface areas

  Certain storm cloud has a potential difference

A certain storm cloud has a potential difference of 2.00*108 V relative to a tree. If, during alightning storm, 55.0 C of charge istransferred through this potential difference and 1.00% of the energy is absorbed by the tree, how much water (sap i..

  Determine the balls impact speed on the ground below

A cannon tilted up at a 30° angle fires a cannon ball at 65 m/s from atop a 12 m high fortress wall. What is the ball's impact speed on the ground below

  What are the magnitude and angle of the overall displacement

An ant, crazed by the sun on a hot Texas afternoon, darts over an xy plane scratched in the dirt. What are the magnitude and angle (relative to the positive x axis) of the overall displacement

  What is the longest wavelength of light

What is the longest wavelength of light that can be absorbed by a hydrogen atom that is initially in the first excited state

  How many electrons does this represent

A frictionless block of mass 1.95 is attached to an ideal spring with force constant 340 . At the spring is neither stretched nor compressed and the block is moving in negative direction at a speed of 12.6.

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