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the velocity-time graph of part of a cyclists trip consists of a straight line between v 240 ms at t 130 s and v 0
a copper kettle contains water at 228deg c when the water is heated to its boiling point the volume of the kettle
on the moon the surface temperature ranges from 397 k during the day to 920 k at nighta what are these temperatures on
a compound microscope has an objective lens of focal length 103 mm with an eyepiece of focal length 150 mm and it
1an ideal massless spring is hanging vertically when a 054-kg mass is attached to the spring the spring stretches by 37
1 a 033-kg mass is hanging from a spring with spring constant 12 nm then the mass is displaced from the equilibrium by
consider a glass sphere of radius 20 mm with an index of refraction of 1 50 find the image distance of this
a sound wave is travelling trough a fresh water pool with a speed of 1482 ms if the intensity of the wave is 100 times
a 2033 gram ice cube at -887 degrees celsius is placed in an aluminum cup whose initial temperature is 18202 c the
1 a physical pendulum is made by drilling a hole through a uniform wooden disk of radius r a distance alphar from
1 a long uniform rod of mass 4kg and length 2m is suspended by a frictionless pivot at its top end from the
an electric train operates on 740 v what is its power consumption when the current flowing through the trains motor is
a current of 160a flows through an electric heater operating on 120 vcompute the power consumption of the electric
a playground merry-go-round has a radius of 430 m and a moment of inertia of 245 kgm2 and turns with negligible
sunlight reflects the surface of a swimming poola at what angle the reflected light is 100 polarizedb what is the
while in church peter notices a lamp hung by a light chain to the ceiling peter counts 850 cycles in 592 seconds how
for a damped simple harmonic oscillator the block has a mass of 22 kg and the spring constant is 13 nm the damping
in the figure a physical pendulum consists of a uniform solid disk of radius r 549 cm supported in a vertical plane by
a simple test to determine the capabilities of a persons lungs is to have the person blow with full force into one end
a block of mass m 590 kg at rest on a horizontal frictionless table is attached to a rigid support by a spring of
when placed in a fluid with an unknown density a sphere with a radius of 850 cm floats with 23 of its volume submerged
a 950-kg satellite orbits the earth at a constant altitude of 105-kma how much energy must be added to the system to
a series circuit with r20ohms c330 muf and l30 mh is connected to an ac sourceof amplitude 160v and frequencey of 60
a copper wire with a diameter of 13 mm has a uniform electric field of 045 vm imposed along its entire length the
a series circuit with r100ohms l5h and c50 muf is driven by an ac signal of frequency 75 hz and amplitude of 18va whats