
Pre-discussion # 8- Fluid Dynamics & Heat & Thermodynamics NAME: 1. Water with density 1000 kg/m...
A 1200-mL (cm3) cylindrical glass beaker is filled to the brim with ethyl alcohol at a temperature of 20.00°C. The temperature drops to 8°C. The thermal expansion coefficient ? for the ethyl alcohol is 1100×10-6 (1/°C). C) Find the (i) change of volume and the (ii) new volume of the ethyl alcohol. D) The diameter of the beaker is 10 cm. Find the final height of the ethyl alcohol
Water with density 1000 kg/m3 is flowing in a horizontal pipe with vi 10 m/s to the right. The radius of the pipe is 5.0 cm. The ratio of radius at point 1 to point 2 is ri/ 2, and ri equals to r3. The flow is laminar. Ignore friction (a) Find the flow rate at point 1, 2, and 3 3 Rank the pressure P, P2, and P3, from largest to smallest, at point 1, 2, and 3. Exlpain...
PLEASE ANSWER 1-4
Date Turned In Name Day 12 Assignment-Fluid Mechanics 1. The deepest point in the ocean is 11 km below sea level, deeper than Mt. Everest is tall, What is the pressure at this depth? The density of seawater is 1030 kg/m. 2, A 35-em-tall, 5.0-cm-diameter cylindrical beaker is filled to its brim with water, What is the downward force of the water on the bottom of the beaker? The density of water is 1000 kg/m. The container...
1. Comparing the coefficients of linear expansion of aluminum, copper and brass, which metal would allow a skyscraper to sway the least on a windy day in summer? Explain. 2.Calculate the coefficient of linear expansion if the initial length was 10. cm, the temperature change was 45°C, and the change in length was 23 mm. Show your work. 3. If you are doing a lab experiment with thermal expansion with copper, brass and aluminum and, you changed the temperature of...
A brass rod, 1 cm in diameter and 15 cm long, with a tip subject to a breeze with a convection coefficient of 68 W/m2 K in a room where the ambient air temperature is 23°C. The base is 79°C and the tip is designed to maintain a constant temperature of 29°C. The manufacturer finds that the thermal conductivity, in units of W/m*K, to be k(T) 43*In(T)- 128, where T is in units of Kelvin. Plot the temperature profile for...
A 1.70 m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 13.0 V across its ends, while an ammeter measures the current through it. You observe that at room temperature (20.0 ∘C) the ammeter reads 18.2 A , while at 92.0 ∘C it reads 17.3 A . You can ignore any thermal expansion of the rod. 1) Find the resistivity and for the material of the rod at 20...
The coefficient of linear expansion for some common materials are listed in the table to the right. You would like to design an emergency overheating alarm using one of these materials. In your design, at room temperature (23.0°C), a 7.51 cm long cylinder of the material will sit with one end against a wall and the other just barely touching a button. Once the heat causes the cylinder to lengthen by 0.0258 cm, the button will be activated, turning on...
Q2(a) A Pyrex beaker of 400 ml (coefficient of linear expansion = 0.3x10-5 °C-+) is filled with 350 ml of glycerine (coefficient of volume expansion = 5.1x10+ °C!). Analyze if the glycerine will overflow if the temperature of both beaker and glycerine is heated from 25 °C to 100 °C. (5 marks) (b) Figure Q2(b) shows the composite wall of a freezing plant which consists of a 10 cm layer of corkboard on the inside and 14 cm layer of...
Thermo: Calorimetry - KE, PE, & Q
SOLIDS Specific heat Material (J/kg.K) Aluminum 921 LIQUIDS Material Specific heat (J/kg.K) Acetone 2150 Brass 402 Benzene 1800 Copper 377 Bromine 470 Glass 840 Ethyl alcohol 2400 Gold 126 Gasoline 2220 Ice 2095 Glycerin 2430 Iron 461 Kerosene 2010 Lead 130 Mercury 140 Nickel 502 Olive oil 1970 2130 Silver 239 Petroleum Styrofoam 1131 Toluene 1720 Zinc 390 Water 4186 Part 1: Bullet A 94 g bullet is fired from a height of...
3. Water has the specific heat 4.186 kJ/kg. °C, a boiling point of 100°C, and a heat of vaporization of 2260 kJ/kg. A sealed beaker contains 100 g of water that's initially at 20°C. If the water absorbs 100 kJ of heat, what will its final temperature be? (A) 100°C (B) 119°C (C) 143°C (D) 183°C (E) 239°C 4. On a cold winter day (5°C), the founda- tion block for a statue is filled with 2.0 m of concrete. By...