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Kelly Michael
On which surface (ground or marble) will thermal energy be reflected more?
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Augustus Proctor
The sampling rate of an ADC is 8.1 kHz. What will be an appropriate cut-off frequency (break frequency) for the anti-aliasing filter in front of the ADC
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Orlando Daniel
What is an object velocity?
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Malik Murphy
A plant box falls from the windowsill 25.0 m above the sidewalk and hits the cement 3.0 s later. What is the box's velocity when it hits the ground?
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Guadalupe Perry
What is the source of heat in the mantle
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Crosby
Which of the following would change a boat's center of gravity?

A. Change the material it is made from

B. Put a small cabin directly over the current center of gravity

C. Add two small anchors on the outside middle of the boat, one on starboard (right), one on port (left)

D. Lengthen the mast (the large pole that holds the sail), which is located on the back of the boat
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Baron Neal
A boat leaves a dock at 7:00 pm and travels due south at a speed of 20 km/h. another boat has been heading due east at 15 km/h and reaches the same dock at 8:00 pm. how many minutes after 7:00 pm were the two boats closest together? (round your answer to the nearest minute.)
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Natalie Castro
Two students are playing hockey with 0.4-N wad of paper. One student hits the wad and it slides across his desk, slowing down at a rate of 0.6 m/s/s. Find the coefficient of kinetic friction between the wad and the desk?
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Colton
A uniform solid sphere rolls down an incline. (a) What must be the incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.10g? (b) If a frictionless block were to slide down the incline at that angle, would its acceleration magnitude be more than, less than, or equal to 0.10g? Why?
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Felicity Miles
Which one of these are non-contact forces

friction

gravity

normal force

pushing force
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Guest
An atom that gains or loses an electron has a net electric charge and is called a/n

a. proton.

b. ion.

c. electron.

d. neutron. user: which sentence best describes mass movement?

a. the steady pace of air bouncing off a mountain

b. the downhill movement of animals due to heavy snow in their normal home

c. the movement of particles within an atom

d. the downhill flow of soil and rock resulting from gravity
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Gilberto Hayes
How can non visible radiation be used
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Dean Bender
What is the potential engery of a 150 kg diver standing on a diving board that is 10m high?
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Yates
A child is given an initial push on a rope swing. On the first swing, the rope swings through an arc of 12 feet. On each successive swing, the length of the arc is 80 % of the previous length. After 14 swings, what total length will the rope have swung? When the child stops swinging, what total length will the rope have swung?
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Priscilla Mcpherson
The formulas N2 and H2O and CO2 all represent molecules which are defined as
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