Physics, 27.10.2020 16:40, ayoismeisalex
Em uma final de campeonato um jogador cruza a bola de massa 0,5 Kg para o seu colega de time que está na área adversária (figura abaixo). A bola sai do chão com uma velocidade de 10 m/s e vai direto para cabeça do atacante (ponto p) que dista 2 m do chão. Desconsiderando qualquer tipo de atrito, a energia cinética da bola no ponto p é:
a) - 10 J
b) 8 J
c) 15 J
d) 10 J
Answers: 2
Physics, 21.06.2019 15:10, sjsmith21
What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?
Answers: 3
Physics, 21.06.2019 18:40, robert7248
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
Answers: 3
Physics, 21.06.2019 19:00, isabellemdeakin
An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm
Answers: 1
Physics, 21.06.2019 19:30, ricesonice5
11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?
Answers: 1
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