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a coin is located 296 cm to the left of a converging lens f 216 cm a second identical lens is placed to the right of
an ice hockey puck is sliding along the vertical wall as shown on the picture top view shown puck is moving in the
what is the electric potential at a distance of 2m from a point charge of 80 ucif an electron e-1610-19c is placed at
a space station is to provide artificial gravity to support long-term stay of astronauts and cosmonauts it is designed
the turbine and associated rotating parts of a jet engine have a total moment of inertia of 30 kg m2 the turbine is
if you tied the string from the previous problem to a wooden block and used the wooden block to keep the lead block
in order to generate an induced voltage a coil of cross sectional area 2x10-4 m2 is placed in a 4t magnetic field and
a 30 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive
air enclosed in a cylinder has density p 14kgm3what will be the density of the air if the length of the cylinder is
suppose a capacitor in a video camera has a capacitance of 260 f and is currently holding 5000e-5 c of charge how much
when a 90 v battery is connected to a capacitor it puts 840e-4 c of charge on the capacitor when a different battery
the pericarppart of a popcorn kernel is a small container of liquid water when the poppcorn is heated to about 180
a spaceship of mass m is located between two planets of masses m1 and m2 the distance between the two planets is l as
25g of copper pellets are removed from a 300 degrees c oven and immediately dropped into 90 ml of water at 25 degress c
an electrical heating coil is immersed in 40kg of water at 21 degrees c the coil which has a resistance of 250 warms
100 joules of heat energy are transferred to 20g of mercuryby how much does the temp increasehow much heat is needed to
a uniform magnetic field of 25 mt magnitude points into the page the wire is 14m long and straight but has a loop smack
in a graphing calculator there are four aaa batteries which together provide a potential difference of 15 v and a total
instead of using batteries a certain type of flashlight has a built in hand pump which you can squeeze to generate the
at 200degc a mainly silicon resistor has a resistance of 395 and a tungsten resistor has a resistance of 752 at this
a mirror produces an image of the sun and the image is located 09800 m from the mirror the same mirror is then used to
a door essentially a uniform rectangle of height 200 m width 083 m and weight 1090 n is supported at one edge by two
a mirror produces an image of the sun and the image is located 09900 m from the mirror the same mirror is then used to
a child hunting for his favorite wooden horse is running on the ground around the edge of a stationary merry-go-round