Pair of eyeglass frames is made of epoxy plastic

Reference no: EM13556296

A pair of eyeglass frames is made of epoxy plastic. At roomtemperature (assume 20 C), the frames have circular lensholes 1.53 cm in radius. To what temperature must the frames beheated in order to insert lenses 1.55 cm in radius? Assume that theaverage coefficient of linear expansion for epoxy is 0.0002( C)−1. Answer in units of C.

Reference no: EM13556296

Questions Cloud

Starts travelingaway problem : A positive charge of 4.90mC is fixed in place. From a distance of3.40 cm a particle of mass 5.60 g and charge +3.10 mC is fired with an initial speed of 74.0 m/sdirectly toward the fixed charge.

What are the magnitude and direction of his acceleration : When a parachute opens, the air exerts a large drag force on it.This upward force is initially greater than the weight of the skydiver and, thus, slows him down. Suppose the weight of the skydiver is 902 N and the drag force has amagnitude of 1030..

What is the local temperature change at the station : The temperature at a point 50 km north of a station is 3 degree C coolor than at the station. If the wind is blowing from the northeast at 20 m s^-1 and the air is being heated by radiation at the rate of 1 degree C H^-1, what is the local temperatur..

What will the traveler weigh on another planet whose radius : A space traveler weighs 550 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?

Pair of eyeglass frames is made of epoxy plastic : A pair of eyeglass frames is made of epoxy plastic. At roomtemperature (assume 20 C), the frames have circular lensholes 1.53 cm in radius. To what temperature must the frames beheated in order to insert lenses 1.55 cm in radius?

A building made with a steel structur : A building made with a steel structure is 596 m high on a winterday when the temperature is 0?F. How much taller is the building when the temperature is T = 104?F? (The linearexpansion coefficient of steel is α = 1.1 ×10−5 (?C)−1.)

Determine the velocity of stream at leak-pipe springs leak : A pipe springs a leak, which causes a stream of water to rise 8.0meters into the air. What is the minimum pressure within the pipe? Determine the velocity of the stream at the leak. If the hole is 1.0cm in diameter, determine the mass rate of flowthr..

How much older is her twin frank when she returns : A new spaceship that can travel at a speed of 0.900c. Mary, the astronaut,boards the spaceship to travel to Barnard's star, which is the second nearest star to our solar system after Alpha Centauri and is5.98 ly away.

Find the direction and magnitude of its acceleration : An object with a charge of -2.6 \mu C and a mass of1.7×10−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to itsweight.

User Account

All Pages