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A wave has a length of 30.0 cm and a velocity of 2.5 cm/s. If it has a velocity of 3.70 cm/s when it enters a new medium, what is the wavelength?
Two identical thermometers made of Pyrex glass contain, respectively, identical volumes of mercury and methyl alcohol. If the expansion of the glass is taken into account, calculate how many times greater is the distance between the degree marks on the methyl alcohol thermometer than the distance on the mercury thermometer
A copper rod and an aluminium rod of the same length and cross-sectional area are attached end to end. The copper end is placed in a furnace maintained at a constant temperature of 272°C. The aluminium end is placed in an ice bath held at a constant temperature of 0.00°C.
Calculate the temperature at the point where the two rods are joined.
1) A 178 g copper calorimeter contains 601 g of water at 19.2°C. Steam at 100°C is bubbled through the water. After a while, the mass of water in the calorimeter has increased by 9.5 g, and the temperature is 30.3°C.
Use this information to determine an approximate value for the latent heat of vaporization of water( Mg/kg)
2)A solid cylinder of radius 2.36 cm, length 4.98 cm, emissivity 0.839, and temperature 33.9°C is suspended in an environment of temperature 50.7°C.
a. Calculate the cylinder’s net thermal radiation transfer rate( Pnet 1)
b. If the cylinder is stretched until its radius is 0.426 cm, its net thermal radiation transfer rate becomes Pnet 2. Determine the ratio Pnet 2/Pnet
1) A copper rod and an aluminium rod of the same length and cross-sectional area are attached end to end. The copper end is placed in a furnace maintained at a constant temperature of 272°C. The aluminium end is placed in an ice bath held at a constant temperature of 0.00°C.
Calculate the temperature at the point where the two rods are joined.
1) A 178 g copper calorimeter contains 601 g of water at 19.2°C. Steam at 100°C is bubbled through the water. After a while, the mass of water in the calorimeter has increased by 9.5 g, and the temperature is 30.3°C.
Use this information to determine an approximate value for the latent heat of vaporization of water( Mg/kg)
2)A solid cylinder of radius 2.36 cm, length 4.98 cm, emissivity 0.839, and temperature 33.9°C is suspended in an environment of temperature 50.7°C.
a. Calculate the cylinder’s net thermal radiation transfer rate( Pnet 1)
b. If the cylinder is stretched until its radius is 0.426 cm, its net thermal radiation transfer rate becomes Pnet 2. Determine the ratio Pnet 2/Pnet
The distance between two crests of a long radio wave is 2.50 km. What is the frequency of this wave?
The horizontal distance between a point of equilibrium on a wave and the middle of a crest is 2.50 m. What is the period if the wave travels 20.0 m in 35.0 s?
A wave 1.30 m long travels 80.0 m in 25 s. What is the period of the wave?
A wave moves with a speed of 20.0 cm/s. What is the wavelength in meters if the frequency of the wave is 0.235 Hz?
