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mestny [16]
3 years ago
8

PLEASE HELP !!! ASAP I WILL GIVE BRAINLIEST !!!

Physics
1 answer:
Paladinen [302]3 years ago
5 0

Answer:

2.11 m

Explanation:

From the question given above, the following data were obtained:

Mass (m) = 4.76 Kg

Initial velocity (u) = 0 m/s

Final velocity (v) = 6.5 m/s

Height (h) =?

NOTE: Acceleration due to gravity (g) = 10 m/s²

The height of the refrigerator can be obtained as follow:

v² = u² + 2gh

6.5² = 0² + (2 × 10 × h)

42.25 = 0 + 20h

42.25 = 20h

Divide both side by 20

h = 42.25 / 20

h = 2.11 m

Therefore, the refrigerator is 2.11 m high

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Two small charged spheres are 7.59 cmcm apart. They are moved, and the force on each of them is found to have been tripled. How
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The two small charged spheres are now 4.382 cm apart

Explanation:

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F = \frac{kq_1q_2}{r^2} \\\\kq_1q_2 = Fr^2 \ \ (keep \ kq_1q_2 \ constant)\\\\F_1r_1^2 = F_2r_2^2\\\\r_2^2 = \frac{F_1r_1^2}{F_2} \\\\r_2 = \sqrt{\frac{F_1r_1^2}{F_2}} \\\\r_2 = r_1\sqrt{\frac{F_1}{F_2}}\\\\(r_1 = 7.59 \ cm, \ F_2 = 3F_1)\\\\r_2 =  7.59cm\sqrt{\frac{F_1}{3F_1}}\\\\r_2 =  7.59cm\sqrt{\frac{1}{3}}\\\\r_2 = 7.59cm *0.5773\\\\r_2 = 4.382 \ cm

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4 years ago
A 25 kg lamp is hanging from a rope. What is the tension force being supplied by the rope?
d1i1m1o1n [39]

The tension force being supplied by the rope is 245 N.

<h3>What is tension force?</h3>
  • Tension force is the force exerted on a rope or cord due to the weight of an object suspended from it.

The tension force on the given rope due to the weight of the lamp hanging from the rope is calculated by applying Newton's second law of motion as shown below;

T = mg

where;

  • m is the mass = 25 kg
  • g is acceleration due to gravity = 9.8 m/s²

T = 25 x 9.8

T = 245 N

Thus, the tension force being supplied by the rope is 245 N.

Learn more about tension force here: brainly.com/question/2008782

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