Physics, 16.10.2019 02:00, christopher766

Examples of the period, frequency, speed of a wave in a sentence?

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Physics, 21.06.2019 20:00, Theacefamily123

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

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Physics, 21.06.2019 23:30, aprilwilson3p8711m

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

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Physics, 22.06.2019 02:00, LadyHolmes67

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

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Physics, 23.06.2019 06:30, IkarosSakurai

Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?