3 years ago

Answer all of these questions and you will get the brainlist

Physics

2 answers:

adelina 88 [10]3 years ago

6 0

Answer:

1. kinetic energy = ½mv²

m= 2.1 kg

v = 30m/s

Ek = ½ ×2.1×30×30

= 945J

2. potential energy = mgh

m = 190kg

g = 9.8

h = 45m

Ep = 190×9.8 × 45

= 83790J

3.potential energy = mgh

m= 75kg

g= 9.8

h = 300m

Ep = 75×9.8×300

= 220,500J

Gnoma [55]3 years ago

5 0

Answer:

2 ans : the bell has 8550 J energy

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