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a ball is traveling horizontally over a volleyball net when a player spikes it driving it straight down to the ground
a bicycle is moving at 400 ms what is the angular speed of one of its wheels if the diameter is 600
wphy am radio transmits on a frequency of 970 khz omnidirectionally with a power of 20 kw what is its wavelength you
pluto spins about its axis with a period of approximately 639 earth days what is the rotational angular speed of
water flows straight down from an open faucet the cross-sectional area of the faucet is 19 times 10-4m2 and the speed
an automobile has a mass 2100 kg and a velocity of 17 ms it makes a rear-end collision with a stationary car whose mass
a metal block of mass 1560 kg is hanging from a string the tension in the string is 7185 n the block is submerged in a
a teenager pushes tangentially on a small hand-driven merry-go-around and is able to accelerate it from rest to a
an unstable particle at rest breaks up into two fragments ofunequal mass the mass of the lighter fragment is equal
use plancks equation to determine the energy in jphoton of radiation of frequency 581015 s-1a 171024jb 5210-8jc
a write a balanced equation for the spontaneous reaction that would occur if a cell were constructed using magnesium
a boy flies a kite with the string at a 30 degree angle to the horizontal the tension in the string is 45n how much
a 400 ml sample of 0150 m baoh2 is titrated with 0400 m hno3 calculate the ph after the addition of the following
1 a spherical ball with a radius of 2130times10-1 m is completely submerged in a fluid that has a density of
a particle moves along the x axis it is initially at the position 0150 m moving with velocity 0060 ms and acceleration
a calculate the concentration of a solution with a measured absorbance of 0224 if b100cm and epsilon 44 x 10 to the
a spring is compressed by 00617 m and is used to launch an object horizontally with a speed of 258 ms if the object
the rotor flywheel of a toy gyroscope has mass 0150 kg its moment of inertia about its axis is 120x10-4kgm2 the mass of
an l-c circuit consists of an inductor with an inductance of 650mh and a capacitor with a capacitance of 300 uf the
a 825-kg climber is scaling the vertical wall of a mountain his safety rope is made of a material that when stretched
a spring is hung from the ceiling a 0375 -kg block is then attached to the free end of the spring when released from
a spring stretches by 00157 m when a 322-kg object is suspended from its end how much mass should be attached to this
a 250 ohm resistor is connected in series with a 480 uf capacitor the voltage across the capacitor is vc760 vsin 120
05 l of a 025 m hcl solution is titrated with a solution of 050 m naohwhat is the ph before addition of naohwhat is the