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A wheel rotating about a fixed axis through its center has aconstant angular acceleration of 1.8 rad/s2. In acertain 5.0 s interval the wheel turns through an angle of 47.5rad. (a) What is the angular velocity of the wheel at the start of the 5.0 s interval? (b) Assumingthat the wheel started from rest, how long had it been in motion atthe start of the 5.0 s interval?
What is the minimum initial speed of the dart if it is to hit a monkey before it hits the ground, which is 11.2 m below the initial position of the monkey, if x=50m and h=10m?
A collimated gamma ray beam consists of equal numbers of 0.1 MeV and 1.0 MeV photons. If the beam enters a 5 cm thick lead shield, what is the relative portion of 1 MeV photons to 0.1 MeV photons in the emergent beam? State the source of all values u..
How high is the sun above the horizon to a fisherman. What is the coefficient of kinetic friction between tires and pavement.
A string of mass 0.0003kg/m and 0.5m long is vibrating 200 cycles per second. What must be the tension? What hanging mass would generate this tension? I got 12N for tension. Is this correct? And how would you solve for hanging mass.
A spacecraft is in a circular Earth orbit at an altitude of 5300km . By how much will its altitude decrease if it moves to a new circular orbit
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.9 m/s2 for 4.5 seconds. What is the acceleration of the tortoise
what is the rotational inertiaof the merry go around starts from rest and accelerates at 0.010 rad s2 for 14 s if a
The catapult on an aircraft carrier can take an aircraft from 0 to 216 mph in 8 seconds, at which time the aircraft launches
A single-turn square wire loop 5.0 cm on a side carries a 450 mA- current. What is the magnetic dipole moment of the loop
a monatomic ideal gas initially at 300k undergoes an isobaric expansion at 2.50kpa. if the volume increases from 1.00m3
A 60.0-g object is attached to a horizontal spring with a force constant of 15.0 N/m, What is the velocity of the object
A 2130 satellite used in a cellular telephone network is in a circular orbit at a height of 800above the surface of the earth. What fraction is this force of the satellite's weight at the surface of the earth
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