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a train travels 75 kilometers in 4 hours and then 60 kilometers in 1 hours what is its average speeda ball is rolled
a starting with newtons 2nd law show by an equation that force relates to change in momentumb state this relationship
what is the mass of a boat if it travels at a velocity of 570 kmh e and has a momentum of 215106
a 425-g softball is travelling at 186 ms 214 degreesa what is the momentum of the softballb determine the x-and
the momentum of a 75-kg dart is 900 kgms east what is the velocity of the dart as with all problems involving vectors
natural hazards please respond to the followingaccess the usgs hazards website under the natural hazards terms section
an electron with electric charge of 16 x 10-19nbspc falls through a potential difference of 41 kv in the vacuum of an
a 25-m-long rocket travels so fast that a red stoplight with a wavelength of 700nm appears to the pilot to be a green
a vial containingnbsp99mtc is labeled 75 kbqml at 12 amwhat volume should be withdrawn at 8 pm on the same day to
what is meant by doping silicon and how does this make a material a semi-conductorexplain how the material is used as a
two point charges of values 34 and 66 c are separated by 010 m what is the electrical potential at the point midway
why might there be a slight downslope in in the total energy instead of a flat
a proton initially moves left to right along the x-axis at a speed of 200 x 103 ms it moves into an uniform electric
briefly describe the approach for designing a mechanical component with regard to the stress-strain and failure
a series rc circuit has a time constant of 10 s the battery has a voltage of 50 v and the capacitance of the capacitor
what could be sources of error for diffraction and interference with reflection gratings dvd the purpose of the lab is
how does the diagram of a rotary systems two rotors connected via a torque spring look
what is the kinetic energy of an hour handconsider both a wristwatch and big ben the clock on the tower at the palace
women often experience back pain when they are pregnant suppose a womans mass before pregnancy is 61 kg and her center
a 97 kg zebra is traveling 13 kmhr east what is the zebras momentum kg-mswhat is the weight on earth of a girl with a
a bungee cord is stretched between two poles 491 meters apart and it has a mass of 775 grams if the force needed to
1 a solution has a ph 500 so what is its hydronium-ion concentration what is its hydroxide-ion concentration is this
a hollow conducting cylinder has a length l and inner and outer radii a and b it is made of a material with resistivity
a silicon cantilever beam is being considered for a mass sensor the beam dimensions are l 200 micro meter w50 micro
the lower frequency limit of hearing for a particular human being isnbsp 254 hznbspwhat is the corresponding wavelength