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horrorfan [7]
2 years ago
12

Hardness and density are physical properties. a. True b. False

Physics
2 answers:
antiseptic1488 [7]2 years ago
7 0
a . true hardness and density are physical properties
VMariaS [17]2 years ago
5 0

Answer: The Answer would be True.

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a 15kg television sits on a shelf at a height of 0.3 m how much gravitational potential energy is added to the television when i
DedPeter [7]

Answer:

<h2>103 Joules</h2>

Explanation:

In this problem we are required to find the potential energy possessed by the television

Given data

mass of television m = 15 kg

height  added above the ground, h= 1-0.3 = 0.7 m

acceleration due to gravity g = 9.81 m/s^2

apply the formula for potential energy we have

P.E= m*g*h

P.E = 15*9.81*0.7 = 103 Joules

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2 years ago
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ale4655 [162]

Answer:

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Output can not be greater than input because the conversion of energy can not be greater than 100%.
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3 years ago
At take off a plane flies 100 km north before turning east to fly 200 km east. How far is its destination from where the plane t
andrew-mc [135]

First the plane turns 100 km North, and than 200 km East. Since both the directions are perpendicular to each other, therefore we can apply the Pythagoras theorem to calculate the distance between the destination and the point where plane took off


=100^{2}+200^{2}

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Therefore, The destination is 224 km from where the plane took off


8 0
3 years ago
An electron with a charge value of 1.6 x 10-19 C is moving in the presence of an electric field of 400 N/C. What force does the
Vsevolod [243]

Answer:

4.0×10⁻¹⁷ N

Explanation:

4 0
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