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a simple pendulum is made from a 0617 m-long string and a small ball attached to its free end the ball is pulled to one
a steady current i flows through a wire of radius rnbsp find the magnetic field inside and outside the wire if a
a metal block of mass 1220 kg is hanging from a string the tension in the string is 7712 n the block is submerged in a
nbspa spherical ball with a radius of 2660times10-1 m is completely submerged in a fluid that has a density of
how long does it take electrons to get from a car battery to the starting motor assume the current is 310 a and the
when an ac source is connected across a 150- resistor the rms current in the resistor is 710 aa find the rms voltage
find the frequency of a certain blue-green light that has a wavelength of 600 nm in airnbsp take the speed of light
cosnider children playing on a merry go around that is 6m in diamter turning at 10 revelutions per minute what will the
a string of length 12m vibrates in 7 loops at a frequency of 70hznbsp show workanbsp what is the wavelengthbnbsp at
list the differences between radio waves and microwaves in terms of wavelength wave frequency and health hazards this
two long parallel wires are separated by 389 mm the current flowing in one of the wires wire 1 is twice that in the
suppose that the magnetic field of the earth were due to a single current moving in a circle of radius 2910 km through
an electron has a spin magnetic moment of magnitude 9285middot10ndash24 a m2 consequently it has energy associated
future space stations will create an artificial gravity by rotating consider a cylindrical space station of 380 m
although there are many mechanisms that help large mammals such as elephants keep cool in hot climates the size of ears
suppose you made a 47kilaohm resistor from a carbon resistor and a nichrome wire-would resistor connected together so
at 00deg c and 100 atm 080 mol of a gas occupies a volume of 00179 m3a what is the number densitym3b estimate the
a toy cannon uses a spring to project a 528 g soft rubber ball the spring is originally compressed by 506 cm and has a
if 100 physics students each give off 100 w as they sit in the classroom taking an exam estimate the temperature
a 099-cm-diameter microscope objective has a focal length of 26 mm it is used in visible light with a wavelength of 532
blood pressure in argentinosaurus if this long-necked gigantic sauropod had a head height of 202 m and a heart height
two points in a rectangular coordinate system have the coordinates 46 33 and 34 53 where the units are centimeters
a 855-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity
a light ray is incident on the outer surface of the lucite at an angle of 437deg with the normal find the angle the
a 240g- mass is attached to a spring of constant k56 nm and set into oscillation with amplitude 25 cm determine the