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a stuntman drives a car over the top of a hill the cross section of which can be approximated by a circle of radius r
a small object is 10 cm to the left of a converging lens f 5 cm and a second diverging lens f -33 cm is 58 cm to the
a solid cylindrical disk is to be used as a stabilizer in a ship by using a massive disk rotating in the hold of the
in 1915 henry sincosky of philadelphia suspended himself from a rafter by gripping the rafter with the thumb of each
a grating has 600 rulings per mm and is 60 mm widea what is the smallest wavelenght interval that can be resolved in
two batteries in parallel each of emf 10 v and internal resistance 05 are connected to an external 20 resistor find
in an lc circuit in which c 40f the maximum potential difference across tha capacitor during the oscillations is 15v
a soap film formed in a loop of wire is because of its weight not exactly uniform in thickness but wedge-shaped in
the avarage intensity of solar radiation that falls normally on surface just outside the earths atmosphere is 14 kwm2a
a line in the x-ray spectrum of gold has a wavelength of 185 pm185x10-12 m the emitted x-ray photons corresponds to a
a calculate the probability that an electron in the ground state of a hydrogen atom will be found at a greater distance
the work function for cesium 181 ev is much lower than the work function for other metalsa what is the photoelectric
8 in comparing the two variances below what is the test value and what are the degrees of freedom that should be used
6 a researcher conducted a study of the access speed of 45 hard drives and concluded that his maximum error of estimate
1 the average gas mileage of a certain model car is 26 miles per gallon nbspif the gas mileages are normally
1 mrs smiths reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute
1 the mean weight of loads of rock is 460 tons with a standard deviation of 80 tons nbspif 25 loads are chosen at
15 a multiple choice quiz consists of 7 questions each with 3 possible answers if a student guesses at the answer to
9 a pet supplier has a stock of parakeets of which 30 are blue parakeets nbspa pet store orders 3 parakeets from this
1 in a survey 85 of the voters support a particular referendum nbspif 40 voters are chosen at random and x is the
1 find the mean of the distribution shownx 0 3 5px 036 040 024a nbsp188 nbsp nbspb nbsp276 nbsp nbspc nbsp120 nbsp
1 an apartment building has the following apartments 1 bedroom 2 bedroom 3 bedroom1st floor 3 1 12nd floor 1 3 23rd
1 on an eight question true-false quiz a student guesses each answer what is the probability that heshe gets at least