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Vadim26 [7]
3 years ago
12

How are the heating systems similar and how are they different?

Physics
1 answer:
Zarrin [17]3 years ago
6 0

Answer:

You can have gas heating systems which run on gas. You can also have electric heating systems that run on electric.

Explanation:

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A (hypothetical) large slingshot is stretched 4.00 m to launch a 440 g projectile with speed sufficient to escape from Earth (11
RSB [31]

Answer:

(A) 3,449,600 N/m

(B) 62,720 poeple

Explanation:

extension of the sling shot (e) = 4 m

mass of projectile (m) = 440 g = 0.44 kg

speed of projectile (v) = 11.2 km/s = 11,200 m/s

average force a person can exert = 220 N

spring constant (k) = ?

(A) When all the elastic potential energy is converted to kinetic energy

o.5ke^{2} = 0.5 mv^{2}

rearranging the above equation

spring constant (K) = \frac{0.5mv^{2} }{0.5e^{2}}

spring constant (K) = \frac{0.5x0.44x11,200^{2} }{0.5x4^{2}}

spring constant (K) = \frac{27,596,800}{8}

spring constant (K) = 3,449,600 N/m

(B) force required to stretch the slingshot (F) = ke = 3,449,600 x 4 = 13,798,400 N

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5 0
3 years ago
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