Physics, 08.07.2021 06:10 lukeakalucas
08. Uma pessoa deitada, tendo os olhos junto ao solo, observa
um poste de baixo até em cima sob um ângulo visual de 60°.
Afastando-se 2,0 m do poste, esta passa a vê-lo sob ângulo de
45°. Podemos afirmar que a altura do poste vale:
Answers: 1
Physics, 21.06.2019 18:00
What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?
Answers: 1
Physics, 21.06.2019 22:30
How many molecules are present in 3 mols of silicon dioxide (sio2)?
Answers: 1
Physics, 22.06.2019 08:20
At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?
Answers: 1
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
08. Uma pessoa deitada, tendo os olhos junto ao solo, observa
um poste de baixo até em cima sob um...
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