How far from the van is the person actually standing

Reference no: EM13649118

The owner of a van installs a rear-window lens that has a focallength of -0.298m. When the owner looks out through the lens at a person standing directly behind the van, the person appears to be just 0.241 m from the back of the van, and appears to be0.342 m tall.

a) How far from the van is the person actually standing?
b) How tall is the person?

Reference no: EM13649118

Questions Cloud

Find the velocity and accelertion of the tip : A thin stick of mass 400 grams is 2 meters long, and is free to pivot about a point at one end. find the velocity and accelertion of the tip

Rotor begins spinning with aconstant angular acceleration : A 50kg woman is in a rotor with a 2m radius, laying against theinner surface. The friction between the woman’s sweater andthe surface is μs = 0.5.

Resistor are connected in parallel : A 90.0- and a 60.0- resistor are connected in parallel. Whenthis combination is connected across a battery, the currentdelivered by the battery is 0.152 A. When the 60.0- resistor is disconnected, the currentfrom the battery drops to 0.0642 A.

What is its required length if it is closed at one end : If an organ pipe is to resonate at 22.8 Hz, what is its requiredlength if it is open at both ends, What is its required length if it is closed at one end

How far from the van is the person actually standing : The owner of a van installs a rear-window lens that has a focallength of -0.298m. When the owner looks out through the lens at a person standingdirectly behind the van, the person appears to be just 0.241 m from the back of the van, and appears to..

Coal-fired power plant burns fuel with an energy density : A 250. MW coal-fired power plant burns fuel with an energy density of 35.0 MJ kg-1. Water enters the temp reduction towerat 293 K and leaves at 350. K at a rate of 4200. kgs-1.

Connected across the terminals of a standard wall socket : The primary coil of a step-up transformer is connected across the terminals of a standard wall socket, and resistor 1 with aresistance R1 is connected across the secondary coil. The currentin the resistor is then measured.

Heat air raised and aluminum raised : Which requires more heat- a kg of air raised 20degrees celsius to 30 degrees celsius or a kg of aluminum raised from 20 degrees celsius to 30 degrees celsius?

Space craft is to travelat a constant velocity : Suppose you are planning a trip in which a spacecraft is to travelat a constant velocity for exactly eightmonths, as measured by a clock on board the spacecraft, and thenreturn home at the same speed.

User Account

All Pages