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there are many evaluates of the number of stars in the universe one evaluate is that there are 1010 stars in the milky
a typical sound level for a buzzing mosquito is 40 db and that of a vacuum cleaner is approximately 70 db obtain how
a 5309 watt space heater is designed for operation in germany where household electrical outlets supply 230 volt rms
a 036 kilogram ball moving in the x direction at 178 meter per second is hit by a bat its final velocity is 233 meter
an object is placed 54 cm in front of a converging lens f 36 centimeter compute where the image is
a crate weighs 10 newton and is being pulled along the floor a constant velocity with a force of 2 newton estimate what
there is a potential difference of 13 volt between the ends of a 10 centimeter long graphite rod that has a
two charges of identical magnitude exert an attractive force of 25 x 10-4 newton on each other if the magnitude of each
a 18 meter tall man is 6 meter from the converging lens of a camera his image appears on a detector that is 60
a rocket accelerates at a rate of 125in the northeast direction the x-component of the acceleration is 12a sketch the
a plane flies with a velocity of 345 meter per second making an angle of 48o with the horizontala draw the vector
a vehicle drives 50 miles west and then heads 154 miles northa draw the vector additionb obtain the magnitude of the
a polarized light beam with a 641 millimeter diameter circular cross section is perpendicularly incident on an ideal
a 075 mf capacitor is charged to 50 volt it is then connected in series with a 55 omega resistor and a 110 omega
a scholars open a 12 kilogram door by applying a force of 40 newton at a perpendicular distance of 090 meter from the
consider the father pushing a playground merry-go-round he exerts a force of 250 newton at the edge of the 50 kilogram
a diatomic gas does 3903 joule of work and also absorbs 2426 cal of heat estimate the change in internal energy of the
assume that you needed to make a pen for some small animals you have 12 m of fencing you decide to make a circular pen
the brick wall of thermal conductivity 11 wmbulloc of a building has dimensions of 28 meter by 15 meter and is 9
a spherical water drop 170 meter in diameter is suspended in calm air owing to a downward-directed atmospheric electric
you measure the electric field between the plates of a 5 nf capacitor to be 2000 nc if the charge on this capacitor is
the weight of a metal bracelet is measured to be 0100 newton in air and 0092 newton when immersed in water calculate
two small no conducting spheres have a total positive charge of 1084 uc when placed 108 meters apart the force each
a an engine absorbs 140 joule and rejects 75 joule in each cycle determine what is its efficiencyb if each cycle takes