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Physics

Serenity Small

A California Condor is approaching its nest with a large chunk of carrion in its beak. As it approaches, it makes an upward swoop, achieving a momentary upward velocity of 12.8 m/s when the carrion falls from its mouth, hitting a cliff outcropping 32.1 m below. Determine the speed of the carrion upon hitting the outcropping. (28.2 m/s)

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Physics

Underwood

Radiation transfers thermal energy through -

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Physics

Juliette Jimenez

A PWC is overtaking another vessel. Which vessel must give way?

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Physics

Rowan Savage

A car traveling at + 7.0 m/s accelerates at the rate of + 0.80 m/s2 for an interval of 2.0 s. Find vf.

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Physics

Rodolfo Greer

What is the frequency of radiation whose wavelength is 0.84 nm? express the frequency in inverse seconds to three significant digits?

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Physics

Sariah Duarte

How do you best determine whether j/m2 and m*s2/N are equivalent units?

Compare the written form of the units to see if they look the same.

Notice that one unit contains joules and other newtons.

Determine if the formula that each unit came from are the same.

Express them both in terms of SI base units.

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Physics

Heaven

Which state must be supplied with the most energy to turn it into a gas

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Physics

Yusuf Leach

The heating element of an electric oven is designed to produce 5.0 kw of heat when connected to a 220 v source. what must be the resistance of the element?

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Physics

Sophie

Suppose all the grains in a sample of sand were exactly the same size. Could the sample still be a heterogeneous mixture?

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Physics

Sean Fitzpatrick

A refrigeration system is to cool bread loaves with an average mass of 350 g from 30 to - 10°C at a rate of 1200 loaves per hour with refrigerated air at - 30°C. Taking the average specific and latent heats of bread to be 2.93 kJ/kg·°C and 109.3 kJ/kg, respectively, determine (a) the rate of heat removal from the breads, in kJ/h (b) the required volume flow rate of air, in m3/h, if the temperature rise of air is not to exceed 8°C (c) the size of the compressor of the refrigeration system, in kW, for a COP of 1.2 for the refrigeration system.

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Physics

Gaige Spencer

What is an example of static friction

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Physics

Sparks

A book with a. mass of 1 kg is sliding to the left of a table. If the frictional force on the book is 5 N, calculate the book's acceleration. Is it speeding up or slowing down?

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Physics

Carl Webb

Blocks with masses of 3.0 kg, 4.0 kg, and 5.0 kg are lined up in a row on a frictionless table. All three are pushed forward by a 16 N force applied to the 3.0 kg block. How much force does the 4.0 kg block exert on the 5.0 kg block?

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Physics

Maurice Lang

Objects falling through air experience a type of friction called

a. terminal velocity.

b. air resistance.

c. inertia.

d. rolling frictio

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Physics

Trevon

Between which pair of objects would the largest gravitational attraction be found

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