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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
what photon energy ev is required to excite the hydrogen electron in the innermost ground state bohr orbit to the