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A 0.04 kg ball is thrown from the top of a 30 m tall building at anunknown angle above the horizontal. The ball attains a maximumheight of 10 m above the top of the building before striking theground. Neglecting air resistance, find the change in kineticenergy for the trajectory.
What is the magnitude of the potential difference between two points that are 1.15 cm and 2.99 cm from a proton? Answer in units of V.
A 2Kg wood block is attached to a .3 g bucket by a massless string rests on the durface of and inclined plan of 20 degrees. the coefficient of friction between the block and the inclined plane are static friction is equal to .4 and kinetic frictio..
Astronomers discover an exoplanet (a planet of a star other than the Sun) that has an orbital period of 3.03 Earth years in its circular orbit around its sun, Find the radius of the exoplanet's orbit in meters
A sound is set up in a pipe closed at one end and open atthe other. According to the formula given by Dr. Willis in class,when n=3 how much of a wavelength is in the pipe?
The temperature of 1.3 kg of water is 34° C. To cool the water, ice at 0° C is added to it. The desired final temperature of the water is 11° C. determine how much mass m of ice should be added
A centrifuge in a medical laboratory rotates at an angular speed of 2000 rev/ min. Find the constant angular acceleration of the centrifuge
The center fielder for the school's baseball team throws a 0.150-kg baseball towards home plate at a speed of 26.0 m/s, What is the kinetic energy of the baseball
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 , length 89.6 and diameter 3.00 from a storage room to a machinist. Calculate the weight of the rod
a circular loop of wire of cross-sectional area 0.12m2 consists of 200. turns each carrying 0.50a. it is placed in a
a thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 linescm. the resulting
A charged particle moves in a uniform magnetic field of 0.579 T with a period of 3.15 × 10-6 s. Find its charge-to-mass ratio
Suppose that by stirring 921 g of water you are able to increase its temperature from 19.0° C to 21.0° C. Find the increase in the water's entropy
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