Physics, 18.09.2019 19:00 girlysimbelieve
Asolid concrete block weighs 140 n and is resting on the ground. its dimensions are 0.370 m x 0.150 m x 0.0820 m. a number of identical blocks are stacked on top of this one. what is the smallest number of whole bricks (including the one on the ground) that can be stacked so that their weight creates a pressure of at least two atmospheres on the ground beneath the first block? (hint: first decide which face of the brick is in contact with the ground.)
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Physics, 22.06.2019 03:00
If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star
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Physics, 22.06.2019 06:30
The energy of a photon was found to be 3.38 Γ 10β19 j. planckβs constant is 6.63 Γ 10β34 j β’ s. which color of light corresponds to this photon?
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Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 Λc. you put in a 11.7 g ice cube at 0.00 Λc to form a system of ice + original water. the specific heat of liquid water is 4190 j/kgβ’k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
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Physics, 22.06.2019 23:00
Which of the following describes how a microwave heats food
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Asolid concrete block weighs 140 n and is resting on the ground. its dimensions are 0.370 m x 0.150...
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