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andrezito [222]
2 years ago
13

Ifa cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between

Physics
2 answers:
kari74 [83]2 years ago
5 0
From the cup to the hand
Finger [1]2 years ago
5 0
It will flow from cup to hand
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Convert 800 cm to meters.
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Answer:8 meters

Explanation:100cm is a meter

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Which of the following is the equation for calculating daily caloric needs? A. BMR calories + Digestion calories B. BMR calories
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Explanation:

To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows: If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2. If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375.

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A firecracker breaks up into two pieces , one has a mass of 200 g and files off along the x –axis with a speed of 82.0 m/s and t
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Answer:

A) 21.2 kg.m/s at 39.5 degrees from the x-axis

Explanation:

Mass of the smaller piece = 200g = 200/1000 = 0.2 kg

Mass of the bigger piece = 300g = 300/1000 = 0.3 kg

Velocity of the small piece = 82 m/s

Velocity of the bigger piece = 45 m/s

Final momentum of smaller piece = 0.2 × 82 = 16.4 kg.m/s

Final momentum of bigger piece = 0.3 × 45 = 13.5 kg.m/s

since they acted at 90oc to each other (x and y axis) and also momentum is vector quantity; then we can use Pythagoras theorems

Resultant momentum² = 16.4² + 13.5² = 451.21

Resultant momentum = √451.21 = 21.2 kg.m/s at angle 39.5 degrees to the x-axis  ( tan^-1 (13.5 / 16.4)

5 0
3 years ago
What is the kinetic energy of an object that has a mass of 12 kilograms and moves with a velocity of 10 m/s?
Alik [6]
1/2mv^2

1/2x12x10^2=600J

The kinetic energy is 600J
3 0
3 years ago
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Which explicit definition matches this sequence? an={10,if n=1an−1−4,if n&gt;1 A. an = 10 + 4(n – 1) B. an = 10 – 4(n – 1) C. an
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Answer:

Añ=10+4(n-1)

Explanation:

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3 years ago
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