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a box of mass 250kg is sliding at a constant speed down an inclined plane that is inclined at 25 degrees what is the
water moves through a constricted pipe in steady ideal flow at the lower point shown in the figure below the pressure
the planet jupiter has a satellite europa which travels in an orbit of radius 6710times108 m with a period of 355 days
in the figure block 1 of mass m1 slides from rest along a frictionless ramp from height h 21 m and then collides with
a 750g 50-cm-long metal rod is free to rotate about a frictionless axle at one end while at rest the rod is given a
a 53kg box is on a frictionless 36circ slope and is connected via a massless string over a massless frictionless pulley
calculate the absolute pressure at the bottom of a freshwater lake at a point whose depth is 262 m assume the density
a rifle with a weight of 20 n fires a 35-g bullet with a speed of 250 ms a find the recoil speed of the rifle incorrect
an ledrsquos color is determined by the energy needed to shift an electron across the band gap in the semiconductor
a 360-kg object is attached to a spring and placed on frictionless horizontal surface a horizontal force of 90 n is
in an engine a piston oscillates with simple harmonic motion so that its position varies according to the expression x
a person pushes a 162-kg shopping cart at a constant velocity for a distance of 275 m on a flat horizontal surface she
a ceiling fan is turned on and a net torque of 18 nmiddotm applied to the blades the blades have a total moment of
during the first stage of its launch a space shuttle goes from rest to 4956 kmhwhile rising a vertical distance of
a sinusoidal wave of wavelength 191 m and amplitude 0159 m travels with a speed of 0743 ms on a string initially the
a uniform plate of height 1170 m is cut in the form of a parabolic section the lower boundary of the plate is defined
a phone cord is 51 m long the cord has a mass of 0165 kg a transverse wave pulse is produced by plucking one end of the
a 60-kg object oscillates on a spring with a force constant of 160 nm the damping coefficient is 020 kgs the system is
consider an elastic collision in one dimension that involves objects of mass 27 kg and 43 kg the larger mass is
a circuit containing a 45 h inductor has an alternating current supplied to it if irms is 69 a and vp is 61 v find the
a cord is used to vertically lower an initially stationary block of mass m 30 kg at a constant downward acceleration
a thin film of acetone n 125 coats a thick glass plate n 150 white light is incident normal to the film in the
two cars collide at an intersection car a with a mass of 2000 kg is going from west to east while car b of mass 1400
light of wavelength 624 nm is incident perpendicularly on a soap film suspended in air assume the soap film has n 133
a 1250 kg car is moving at 123 ms then 243 kj of work is done on the car to increase its speed what will be the cars