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a potters wheel a solid uniform disk of mass 57 kg and radius 065 m spins about its central axis a 21 kg lump of clay
at time t 0 s a wheel has an angular displacement of zero radians and an angular velocity of 15 rass the wheel has a
a string 02 m long vibrating in the n 4 harmonic excites an open pipe 089 m long into second overtone resonance the
a 1200 kg ore cart is rolling at 108 ms across a flat surface a crane dumps 493 kg of ore vertically into the cart how
a 7 kg sample of mercury is completely solidified and liberates 110 kj of energy what is the original temperature of
a 416 kg car moving at 178 ms hits from behind another car moving at 113 ms in the same direction if the second car has
a 208 kg copper bar is put into a smelter for melting the initial temperature of the copper is 3000 k how much heat
a machinist turns the power on to a grinding wheel at rest at time t 0 s the wheel accelerates uniformly for 10 s and
a steel pipe 22 m long installed when the temperature was 15degc is used to transport superheated steam at a
a glass flask has a volume of 900 ml at a temperature of 20deg c the flask contains 895 ml of mercury at an equilibrium
two vehicles approach a right angle intersection and then collide after the collision they become entangled if their
consider a string consisting of two densities p1 in region 1 where xlt0 and p2 in region 2 where xgt0 a continuous
a substance has a melting point of 20deg c and a heat of fusion of 29 times 104 jkg the boiling point is 150deg c and
a brass rod is 487 cm long and an aluminum rod is 706 cm long when both rods are at an initial temperature of 0deg c
a glass tube that is bent into a rectangular u find an expression for the difference in the height h between the tops
the sun emits electromagnetic radiation that hits the earth the maximum wavelength that the sun emits is at 545nm at
which of the following devices use a diffraction grating in order to functiona eyeglass that correct for
what is the energy of a single photon of red light with a wavelength of 633 nma 10x 10-27b 31x 10-19c 41x10-40d
which of the following devices uses total internal reflection functiona eyeglasses that correct nearsightednessb fiber
which of the following best describe lenzs lawa the magnetic force always act perpendicular to the magnetic fieldb
one component of a device for producing a beam of spin polarized protons for use in nuclear research is a spherical
an airfoil is being tested at an altitude of 34000 ft standard atmosphere and a speed of 600 knots at a specific point
a diffraction grating has 1900 rulingscm on a screen 100 m from the grating it is found that for a particular order m
for the venture section calculate the velocitymass flow rate volume flow rate and the pressure at station two the