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a child knocks a 12 kg vase off of a table 15 m above the groundawhat is its potential energy before it begins to
a 500 kg cart is at the top of a steep track it rolls from rest down a 7 meter hill if 2000 joules of energy are lost
a plate hits the floor and breaks into 2 pieces the first piece has a mass of 02 kg and flies off at an angle of 30
a 90 kg linebacker running downfield at 10 ms collides with a 65 kg referee who is at restawhat is their final
when subjected to a force of compression the length of a bone compression youngs modulus 94 x 109 nm2 tensile youngs
a 400kg block is suspended from a spring withk560nm a500g bullet is fired straight up into the block from directly
four wires meet at a junction in two of the wires currents i1 103 a and i2 205 a enter the junction in one of the
a galvanometer has a coil resistance of rgalv 897 it is to be made into an ammeter with a full-scale deflection equal
a particle with a mass of15010-20kg is oscillating with simple harmonic motion with a period of 10010-5s and a maximum
a high-voltage power line carries a current of 140 at a location where the earths magnetic field has a magnitude of 059
at point a 480 m from a small source of sound that is emitting uniformly in all directions the intensity level is 540
a what is the equation that gives the angles of interference maxima for a double slit setup make a sketch that
an electron follows a helical path in a uniform magnetic field of magnitude 0642 t the pitch of the path is 748 m and
two identical parallel-plate capacitors each with capacitance c are charged to potential difference v and connected in
a 460-kg ball is dropped from a height of 100m above one end of a uniform bar that pivots at its center the bar has
two conductors having net charges of 180 microc and -180 microc have a potential difference of 180 v between them a
starting from rest a boulder rolls down a hill with constant acceleration and travels 400m during the first seconda how
the wheels of a wagon can be approximated as the combination of a thin outer hoop of radius rh 0209 m and mass 565 kg
a wire carries a steady current of 220 a a straight section of the wire is 0750 m long and lies along the x axis within
a small mass is stuck to a point on the rim of a rolling wheelradius of r which traces out a path called a cycloid the
the froghopper philaenus spumarius holds the world record for insect jumps when leaping at an angle of 580circ above
a 72 skydiver can be modeled as a rectangular box with dimensions 25 40 18 what is his terminal speed if he falls feet
the earth makes a near circular orbit around the sunr15 1011m assuming uniform circular motion determine the earths
a wood block after being given a starting push slides down a wood ramp at a constant speed what is the angle of the
estimate the wavelengths of the first three spectral lines in the lyman spectral series for hydrogen what energies ev