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the component of the force f acting on the support in the xy plane is 7 kn suppose that theta 27o figurea- determine
when a test charge of 8 nc is placed at a certain point the force that acts on it has a magnitude of 0128 n and is
when a test charge of 9 nc is placed at a certain point the force that acts on it has a magnitude of 0144 n and is
during the testing process for some pharmaceuticals the drug is tagged with a radioactive material this way researchers
coherent light from the laser pointer shown here shines through two slits the slits are 0100 mm apart and each slit is
1 a ball travelling horizontally at 56ms role off the edge of a cliff how long does it take to fall 27m2 without
1 a battery with an internal resistance of 050 ohms has a current of 078a through it when it is connected in a circuit
1 how far away from a long straight wire is the magnetic field strength 16 x 10-2 t the current through the wire is
1 a generator consists of 250 turns of wire each with a radius of 87cm the armature turns with a frequency of 120rs in
a battery supplies a steady current of 56a for 21s during this time 1410j of chemical energy is transformed into
lightning strikes a solid iron flag pole which has a resistance of 20 x 10-4 ohms the potential difference between the
a compact mass m is attached to the end of a uniform rod of equal mass m and length l that is pivoted at the top figa
1 the deflection of the electron beam on the end of a cathode ray tube is observed to be 24 cm when the potential
1 a moon of a certain planet has an orbital radius of 13 x 108 m and an orbital period of 52 x 105 s if a satellite is
1 a proton with a speed of 45 x 106 ms is observed to travel in a circle of radius 022m in a magnetic field what is the
a compact disc will break apart if it rotated at a rate of about 23000 rpm what is the velocity and centripital
a diver stands on a diving board as shown in attached diagram the centre of gravity of the diving board is marked cg if
1 an electron in a vacuum acelerates from rest through a potential difference of 550v and then enters a magnetic field
a thin 152 m long copper rod has a mass of 524 g what is the minimum current in the rod that will cause it to float in
a thin cylindrical ring starts from rest at a height h1 81 m the ring has a radius r 12 cm and a mass m 2
refer to figure below and find the equation for tan theta as a function of x and lhint start by using the approximation
a thin double convex lens having a focal length of magnitude 275 cm is placed 1000 m from a plane mirror that is
a thin film of gasoline floats on a puddle of water sunlight falls perpendicularly on the film and reflects into your
a thin film of oil with index of refraction n 155 and thickness t 75 nm floats on water the oil is illuminated from
the colours on a soap bubble are also due to interference what is the minimum difference in thickness of a bubble film