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From the critical point, 5.2 K, down to the λ-point, 2.2 K, of liquid 4He, the surface tension is given approximately by
γ = 0.05 (N/m) (1- (T/5.2K))
Plot ϒ, against T in this temperature range.
A glass plate (n = 1.60) is covered with a thin, uniform layer of oil (n = 1.29). A light beam of variable wavelength from air is incident normally on the oil surface. Observation of the reflected beam shows constructive interference at 511 nm. Deter..
A person whose eyes are 1.75m above the floor stands in front of the plane mirror. The top of her head is 0.11.
When a potential difference of 12 V is applied to a wire 5.6 m long and 0.28 mm in diameter the result is an electric current of 1.2 , What is the resistivity of the wire
A car accelerates uniformly from rest to a speed of 64.7 km/h (18.0 m/s) in 10 s. Find the distance the car travels during this time
A golf club makes impact with a 0.045 kg golf ball during a drive off the tee. The loft angle of the club (the angle between the club face and vertical) is 10 degrees. What is the direction of this resultant force
A 4 kg dog stands on one end of a 20 kg boat. The dog is initially 6 m from the shore, How far has the boat moved after the dog has walked the 2m
An airplane flies due south at 190-km/h relative to the air. There is a wind blowing at 73.0 km/h to the east relative to the ground. What are the plane's speed and direction relative to the ground.
The sound level measured in the room by a person watching a movie in a home theatre system varies from 63 dB throughout a quiet part to 92 dB throughout a loud part. In the order of how many times louder is the latter sound.
How many wavelengths are contained in the light wave passing back and forth through the oil?
Use the principle of conservation of linear momentum to determine the common speed of the blocks just after the collision. (carry the answer to one decimal place.) height = .60 m
Find the kinetic energy of a 1400- satellite in a circular orbit about the Earth, given that the radius of the orbit is 1.20×104 miles. How much energy is required to move this satellite to a circular orbit with a radius of 2.70×104 miles?
a plastic rod has been bent into a circle of radius r 6.30 cm. it has a charge q1 5.00 pc uniformly distributed along
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