Physics, 22.09.2021 08:20 aylineorozco836
Có 0,092 kg không khí chứa trong xilanh. Nhiệt độ của không khí là 30oC, áp suất tuyệt đối 4 bar. Sau khi thực hiện một quá trình nhận nhiệt trong điều kiện đẳng áp thì nhiệt độ tăng lên đến 200oC. Tính: Công thay đổi thể tích trao đổi trong quá trình ?Biết thể tích riêng ở trạng thái cuối: v2 = 0,339 m3/kg
Answers: 3
Physics, 22.06.2019 04:50
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
Physics, 22.06.2019 07:00
Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.
Answers: 3
Physics, 22.06.2019 16:40
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
Physics, 22.06.2019 18:00
Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c
Answers: 1
Có 0,092 kg không khí chứa trong xilanh. Nhiệt độ của không khí là 30oC, áp suất tuyệt đối 4 bar. Sa...
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