Physics, 04.08.2020 14:01 santosv3136
Please will give brainliest Questions
1) A hydrometer has mass 19g and Floats in water with 5cm
of its stern above water Surface.
a) Determine the total volume of the hydrometer, if it floats in air of density 1. 2g/cm³ given that the Cross Sectional Area of the hydrometer is 0.650m²
(b) what is the length of the stern above the Surface of the water given that the density of water is 1g/cm³?
please will give brainliest
Answers: 3
Physics, 22.06.2019 07:00
We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation
Answers: 3
Physics, 22.06.2019 08:00
Aheat engine running backward is called a refrigerator if its purpose is to extract heat from a cold reservoir. the same engine running backward is called a heat pump if its purpose is to exhaust warm air into the hot reservoir. heat pumps are widely used for home heating. you can think of a heat pump as a refrigerator that is cooling the already cold outdoors and, with its exhaust heat qh, warming the indoors. perhaps this seems a little silly, but consider the following. electricity can be directly used to heat a home by passing an electric current through a heating coil. this is a direct, 100% conversion of work to heat. that is, 19.0 \rm kw of electric power (generated by doing work at the rate 19.0 kj/s at the power plant) produces heat energy inside the home at a rate of 19.0 kj/s. suppose that the neighbor's home has a heat pump with a coefficient of performance of 4.00, a realistic value. note: with a refrigerator, "what you get" is heat removed. but with a heat pump, "what you get" is heat delivered. so the coefficient of performance of a heat pump is k=qh/win. an average price for electricity is about 40 mj per dollar. a furnace or heat pump will run typically 200 hours per month during the winter. what does one month's heating cost in the home with a 16.0 kw electric heater? what does one month's heating cost in the home of a neighbor who uses a heat pump to provide the same amount of heating?
Answers: 2
Physics, 22.06.2019 16:00
The amount of potential energy possessed by an elevated object is equal to what?
Answers: 1
Please will give brainliest Questions
1) A hydrometer has mass 19g and Floats in water with 5cm
English, 30.10.2020 15:30
History, 30.10.2020 15:30
Mathematics, 30.10.2020 15:30
Chemistry, 30.10.2020 15:30
Mathematics, 30.10.2020 15:30
Mathematics, 30.10.2020 15:30
Mathematics, 30.10.2020 15:30
Mathematics, 30.10.2020 15:30
History, 30.10.2020 15:30