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3 years ago

What is the acceleration of a 90 kg object which is acted upon by an unbalanced force of 435 N?

Physics

1 answer:

erik [133]3 years ago

8 0

Answer:

The acceleration is 4, 8 m/s2

Explanation:

We calculate the acceleration, with the data of mass and force, through the formula:

F= m x a ---> a= F/m

a= 435 N/90 kg 1N= 1 kg x m/s2

a= 435 kg x m/s2/ 90 kg

a= 4,8 m/s2

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3 years ago

A positive charge of 8.0 × 10-4 C is in an electric field that exerts a force of 3.5 × 10-4 N on it. What is the strength of the

Gennadij [26K]

Answer:

E = 0.437 N/C

Explanation:

Given that,

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F = qE

Where

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3 years ago

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2 years ago

A magnifying glass uses a convex lens of focal length 6.25 cm. When it is held 5.20 cm in front of an object, what is the image

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3 years ago

The specific heat of water is 4.2 J/g • °C. How much heat is required to raise the temperature of 100 g of water by 5°C? *

Svetach [21]

Answer:

2100 J

Explanation:

The heat required to increase the temperature of a substance is given by

$Q=mC\Delta T$

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m = 100 g is its mass

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So, the amount of heat needed is:

$Q=(100)(4.2)(5)=2100 J$

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3 years ago