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1 a 100 kg football linebacker moving at 2 ms tackles head-on an 80 kg halfback running 3 ms assume the two players
a current of 15a flows during an electric heater operating on 120v what is the heater resistance calculate the
a 300 kg block starts from rest at the top of a 330deg incline and slides 200 m down the incline in 160s1 discover the
a car traveling 80 kmh is 70 m behind a truck traveling 75 kmh how long will it take the car to reach the truck i have
a photon by wavelength lambda is absorbed by an electron confined to a box as a result the electron moves from state n
two electrons in the same atom both have n4 and l2how many quantum numbers are there for possible states of the atomhow
an air-filled parallel plate capacitor with a plate spacing of 130 cm has a capacitance of 640 muf the plate spacing is
a tuning fork labelled 392 hz has the tip of each of its two prongs vibrating by amplitude of 0600mma what is the
you are on an unknown planet you throw an object straight up with an initial speed of 5ms it takes 6 seconds for the
light with some unknown wavelength is incident on a piece of copper the most energetic electrons emitted from the
an electron confined in a one- dimensional box is observed at different times to have energies of 12ev 27ev and 48ev
a football player starting from rest at the line of scrimmage accelerates along a straight line for a time of 15 s then
water skiers often ride to one side of the center line of a boat as shown in figure 7-16 in this case the ski boat is
now you are at the park you are going to analyze a circular ride on this ride you sit in a seat attached to the end of
a circuit consists of a coil that has a self-inductance equal to 480 mh and an internal resistance equal to 130 omega
a tennis player standing 72 m from the net hits the ball at 242degabove the horizontal to clear the net the ball should
the flywheel of an engine has moment of inertia 250 kg about its rotational axis what constant torque is needed to
indicate whether the following statements are always true or can be false1 if a net force acts on an object the objects
a swimmer heads directly across a river swimming at280 ms relative to still water he arrives at a point 490 m
a rhinoceros is at the origin of coordinates at time for the time interval from to the rhinos average velocity has
an airplane is flying by a velocity of at an angle of above the horizontal when the plane is a distance directly above
a person takes about 20 breaths per minute with 05 litre of air in each breath how much heat is removed per hour by the
1 a convex mirror has a focal length of-900 m for an object distance of 110 ma discover the image distanceb discover
surprisingly very few athletes can jump more than 2 feet 06m straight up utilize d 12 gt squared and solve for the time
consider a horizontal square plate capacitor of area 11m2 capacitance in vacuum 4 muf which contains a dielectric