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Jodie investigates the properties of silvery and black surfaces asabsorbers of radiation. She sets up two conical flasks full ofwater, one covered with aluminium foil and the other painted black.
a) Describe how she investigates which of the two surfaces is the best absorber of heat radiation. Your answer should include:- A description of the method used.- The measurements taken.- A sketch of the graphs obtained.- Two precautions taken.- The conclusion
A parallel plate capacitor has a surface area of A = 33.2 cm2 and a plate separation of d = 13.3 mm. How much charge does the capacitor store, when it is connected to a battery supplying a voltage of V = 20.3 V?
The length between lenses equals 1m, the eyepiece has a focal point of 32mm, what is the magnification of an object at infinity
A 1.5-m-diameter vat of liquid is 2.3m deep. The pressure at the bottom of the vat is 1.3atm What is the mass of the liquid in the vat
a sinusoidal wave travels along a stretched point. a point along the string has a max velocity of 1m/s and a max displacement of 2cm
What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane flies is ρair = 1.21 kg/m3.)
How far from the firing point is the height of the projectile.
A 5 g bullet moving with an initial speed of 530 m/s is fired into and passes through a 2 kg block. find the speed at which the bullet emerges from the block
Review Interactive Solution 12.47 for help in approaching this problem. When resting, a person has a metabolic rate of about 7.05 x 105 joules per hour. find the water temperature in degrees Celsius after half an hour
In a double-slit interference experiment, the wavelength is 577 nm, the slit separation is 0.1 mm, What is the linear distance between adjacent maxima on the screen
What would have happened to our graphs in this lab if we had a heavier bar?
A 5.00 uF and a 7.00 uF capacitor are connected in series, and this combination is connected across a 48.0V potential difference. Calculate the potential difference across first one
A 64 kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal, What is the magnitude of the kinetic frictional force
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