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1 give a brief background on your subject of research is your subject purely science or technology what is the basis of
an aluminum bar with length 2m and a coefficient of linear expansion of 000023 undergoes a temperature change of 180
1 a drill rotates at 380 rad per s how many radians does it rotate through as it comes to a stop in 30 seconds2 an
two frictionless roller-coaster cars sit atop identical roller coaster tracks the two roller-coasters meet at the
steam enters a 10 mw output turbine at a fluid speed of 795 ms and emerges at a fluid speed of 984 msassuming the
in the vacuum tube of figure 1 the lower metal plate the target is irradiated with 400-nm light of intensity 950 wm2
a laser beam with an intensity of 60 wm2 shines on a black object of mass 29 mg the beam hits an area of 45 mm2
you accelerate constantly from a speed of 60 ms in the positive x direction to a speed of 18 ms in the negative x
a woman whose weight is 530 n is poised at the right end of a diving board with length 4 m the board now has a weight
from a cliff that is 95 m above a lake a young woman mass 5 41 kg jumps from rest straight down into the water at the
match the situations listed to the proper type of experimental error and please explain whya random error b systematic
what conditions must occur for two atoms to be isotopes how is average atomic mass
a light ray travels through medium 1 index of refraction n1 11 into medium 2 index of refraction n2 16 figure 1at
in vacuum the wavelength of the light in your laser pointer is 538 nm standing at the shore of a calm pond you shine
you shine a laser pointer at an angle of 50 from the normal onto the surface of a thick block of glass for which the
you show only one example for unit iv for exoplanets i dont believe these answers are correct are there any other
a ball is thrown with an initial speed of 270 ms at an angle 64 degrees to the horizontalnbspcalculate the maximum
you throw a ball at a launch speed of 49 ms at an angle of 66 degrees to the horizontalnbspassuming that the ball lands
a 250 kg load is hung on a wire of lenght 45 m and cross sectional area 3810-5 m2 what is its increase in lenght the
a calculate the rms speed of anbspcarbon dioxidenbspmolecule atnbsp20degcmsb determine how many times per second it
determine the cross sectional area in square feet for pipes ranging in diameter interior diameter nominal sizes from 8
a calculate the approximate rms speed of an amino acid whose molecular mass isnbsp89nbspu in a living cell
an aircraft lands on a runway and brakes with a constant acceleration of -150 ms 2 its initial velocity when it
planet zero has a mass of 45 times 1023 kg and a radius of 19 times 106 m a space probe is launched vertically from the
a tire is filled with air at 15degc to a gauge pressure ofnbsp210nbspkpa if the tire reaches a temperature ofnbsp37degc