Physics, 23.09.2020 16:01 chrisraptorofficial
When the velocity v of an object is very large, the magnitude of the force due to air resistance is proportional to v2 with the force acting in opposition to the motion of the object. A shell of mass 3 kg is shot upward from the ground with an initial velocity of 800 m/sec. If the magnitude of the force due to air resistance is (0.1)v2, when will the shell reach its maximum height above the ground? What is the maximum height? Assume the acceleration due to gravity to be 9.81 m/s2.
Answers: 3
Physics, 22.06.2019 05:30
FĆsica: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un Ć”ngulo de tiro de 25? , b) el tiempo que el balĆ³n permanece en el aire.
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Physics, 22.06.2019 11:30
Which of these questions might a character ask if the conflict is man versus self? a. which path should i take to better myself? b. which boulder will be too heavy for me to carry? c. which friend is going to ditch me today? d. all of the above
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Physics, 23.06.2019 02:30
Intro: a solid ball of radius rb has a uniform charge density Ļ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of Ļ, rb, r, and Ļµ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of Ļ, rb, r, and Ļµ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limrāāe(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as rāā.
Answers: 1
Physics, 23.06.2019 04:31
Elements in group viiia (also known as group 18, or the noble gases) have similar properties because they all have a. the same number of electron shells b. full octets c. the same number of valence electrons d. the same number of electrons needed to fill their octet
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