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an ideal fluid in a pipe of diameter 14cm is moving at 60 ms if the incompressible fluid density is 105gcc what is the
the period of the earth around the sun is 1 year and its distance is 150 million km from the sun an asteroid in a
two vehicles approach a right angle intersection and then collide after the collision they become entangled if their
a satellite moves in a circular orbit around the earth at a speed of 61 kms determine the satellitersquos altitude
find the magnitude of the gravitational force a 639 kg person would experience while standing on the surface of earth
jill 60kg is swinging on a rope swing that is 4m long at what frequency does jill need to pump her legs to get the
a rock is suspended from a scale reads 200 n a beaker of water having a density of 1000 kgm3 is raised up so the rock
a piano string with mass density 7700 kgm3 and diameter 03 mm is stretched over a pulley such that its vibrating length
what did newton discover about gravity 1 all objects near the earth free fall with the same acceleration 2 any force on
a ladder leans against a wall making a 550deg angle to the floor the ladder is 450 m long and weighs 415 n the wall is
one kilogram of dry air at stp conditions is exposed to 100 r of x-rays one roentgen is defined by equation 321 in
a laser produces a 650-mw beam of light consisting of photons with a wavelength of 6219 nm a how many photons are
simple pendulum with length 1m released from rest from angle of 20 degrees from the vertical and to the left of the
a rectangular block of copper has sides of length 10 cm 20 cm and 40 cm if the block is connected to a 60-v source
if your boat weighs 1200n how much water will it displace when it is floating motionless at the surface of a
a collision between two protons produces three new particles p p ---gtp 0 0 the rest energies of the new particles
a 300 pound man is submerged in water and his submerged weight is approximately 120 pounds what is the volume of this
suppose you have a spherical balloon filled with air at room temperature and 10 atm pressure its radius is 10 cm you
the reaction rate for the prepupal development of male drosophila is temperature-dependent assuming that the reaction
what is the maximum amount of energy that is stored in a volcano if the chamber is 55x104 meters wide 72x104 meters
a mass m is split into two parts m and m - m which are then separated by a certain distance what ratio mm gives the
a tank having a volume of 011 m3 contains helium gas at 170 atm how many balloons can the tank completely fill if each
an ac generator with a frequency of 294 hz and an rms voltage of 120 v is connected to a 495-microf capacitor a what is
a solenoid with 235 turns and a cross-sectional area of 65 cm2 has a magnetic field of 080 t along its axis if the
suppose the ac voltage from a power company is 20000v two transformers are used to step down the voltage the first