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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 what percentage faster will a reaction go if a catalyst lowers its activation energy from 50 kj mol- to 25 kj mol-
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
for the gas phase reaction of carbon monoxide with water to produce carbon dioxide and hydrogen gas suppose you start
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
a 600g ice cube can slide without friction up and down a 330 slope the ice cube is pressed against a spring at the
starting with benzene outline a synthesis of each of the following many of the answers will require more than one stepf
consider an electron in the first bohr orbit of a hydrogen atom a what is the radius in meters of this orbit b what is
a 250microf capacitor is charged to a potential difference of 800v the terminals of the charged capacitor are then
a flat coil of wire has an area a n turns and a resistance r it is situated in a magnetic field such that the normal to
a small ball rolls off the roof edge of a building with a horizontal speed of 23ms the ball hits the ground a distance
a parallel-plate vacuum capacitor has 856j of energy stored in it the separation between the plates is 380mm if the
a capacitor is made from two hollow coaxial iron cylinders one inside the other the inner cylinder is negatively
a square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field the square loop is then
show that when a region filled with cavity radiation quasistatically and adiabatically expands or contracts the
a single household circuit operates at 120 v and is protected by a 10 a circuit breaker how many 50 w lamps can be
a 3 ohm resistor is mounted in parallel with a resistor r11 ohm and this combination is connected in series with an 4
a parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material the
a helicopter is lifting two crates simultaneously one crate with a mass of 160 kg is attached to the helicopter by
a 29-kg toy locomotive is pulling a 17-kg caboose the frictional force of the track on the caboose is 054 n backward