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4 years ago

10

The specific heat of substance X is 200 J/g*C, how much heat is required to change the temperature of 2.0 grams of substance X f

rom 35 degrees Celsius to 55 degrees Celsius?

1 answer:

Margarita [4]4 years ago

8 0

C = 200 j/g*C
m = 2g
ΔT = 55 - 35 = 20C

Heat = mcΔT = 2 * 200 * 20 = 8000J = 8kJ

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What is the relationship between acceleration and time?

Harlamova29_29 [7]

Answer:

The relationship between acceleration and time relates to the velocity and how it changes throughout the movement of an object.

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Answer:

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4 years ago

A test charge is placed at a distance of 2.5 × 10-2 meters from a charge of 6.4 × 10-5 coulombs. What is the electric field at t

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Using the formula: E = kQ / d² where E is the electric field, Q is the test charge in coulomb, and d is the distance.

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3 years ago

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Answer:

Friction between the box and the floor is 25N to the left

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So the net force acting on the box is

$F_{net}=F-F_f$

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4 years ago

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