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The displacement of an object is given by x =sin2pi (t+0.01)m. Find amplitude of the oscillatory motion ,time period, maximum velocity , maximum acceleration and initial displacement
A piece of copper 700g is heated to100°c and then quickly transferred to a copper calorimeter of mass 20g containing 500g of liquid of unknown specific heat capacity of liquid calculate the specific heat capacity of copper 3900j/kg
Suppose the area of a window on a passenger jet is doubled in size
and all else is kept constant. Compared with the original window,
what will happen to the rate at which heat passes out through the
new window from the cabin?
The temperature on the inside face of a glass window is 20.0 .C
while the outside temperature is 0.00 .C. The window is 100 cm
by 100 cm by 10.0 mm and has a thermal conductivity of 0.85
W/m.K. How much energy passes outward through the glass in
Suppose that the heat flow out of your 20°C home in the winter is 7
kW. If the temperature outside is -15° C, how much power P would an
ideal heat pump require to keep your inside temperature at 20° C?
There is a 70 W heat leak from a room at temperature 22 °C into
an ideal refrigerator. How much electrical power is needed to
keep the refrigerator at -10 °C?
A positive and negative charge, each of magnitude 3.7 * 10 ^ - 6 * C are separated by a distance of 25 cm. Find the force on each of the particles .
Two electrons in an atom are separated by 1.5 * 10 ^ - 10 m , the typical size of an atom. What is the electron forces between them?
A 3 kg block moving to the right on a frictionless table at 4 m/s makes a head on collision with another 3 kg block moving 5 m/s to the left.
Determine the precision of these two approximate values
a) 32000ft
b) 1.20×10(--5)ms
