At birthday parties, a fairly simple device throws confetti in the air. The device consists essentially of a cardboard tube and a compressed spring. 20 cm The confetti are packed inside the tube. A short twist in the plastic base of the tube unlocks the spring that, in its relaxation process, pushes the confetti of the device along 20 cm. When thrown, with the tube upright, the confetti reach a maximum of 4 meters in height, 20%of what they would get if there was no air resistance. Considering that the portion of confetti to be thrown has a total mass of 10 g and that the acceleration of gravity is 10 m/s?, the value of the elastic spring constant used is approximately (in N/m), O 50 O 20 10 40 100 confetti
At birthday parties, a fairly simple device throws confetti in the air. The device consists essentially of a cardboard tube and a compressed spring. 20 cm The confetti are packed inside the tube. A short twist in the plastic base of the tube unlocks the spring that, in its relaxation process, pushes the confetti of the device along 20 cm. When thrown, with the tube upright, the confetti reach a maximum of 4 meters in height, 20%of what they would get if there was no air resistance. Considering that the portion of confetti to be thrown has a total mass of 10 g and that the acceleration of gravity is 10 m/s?, the value of the elastic spring constant used is approximately (in N/m), O 50 O 20 10 40 100 confetti
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URGENT (physics help)
Transcribed Image Text:At birthday parties, a fairly simple device throws confetti in the air. The device consists essentially of a
cardboard tube and a compressed spring.
20 cm
The confetti are packed inside the tube. A short twist in the plastic base of the tube unlocks the spring that, in
its relaxation process, pushes the confetti out of the device along 20 cm.
When thrown, with the tube upright, the confetti reach a maximum of 4 meters in height, 20%of what they
would get if there was no air resistance. Considering that the portion of confetti to be thrown has a total mass
of 10 g and that the acceleration of gravity is 10 m/s?, the value of the elastic spring constant used is
approximately (in N/m),
50
20
10
40
100
confetti
Transcribed Image Text:The energy radiated by the Sun comes from the conversion of mass into energy during fusion reactions of
hydrogen nuclei to produce helium nuclei. Currently, these reactions allow the Sun to emit light radiation at a
power of approximately 4 · 104 w.
Assuming that this power has been maintained since the birth of the Sun, about 5 · 10° years ago, the mass
corresponding to that lost by the Sun until today is closer to
Info:
Speed of light in vacuum: 3 · 108 m
1 year has approximately 3 · 107 seconds.
The equations that relates energy to mass is E
m· c2.
1037 kg
1017 kg
1047 kg
1027 kg
107 kg
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