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Gnoma [55]
3 years ago
11

Sean and Tommy are debating the positive and negative impacts of technology on environmental quality. Tommy is listing the negat

ive impacts. Which of the following would help his argument?
A. Solar panels have become more effective due to technological improvements.
B. Technology has helped make recycling to be more efficient.
C. It has created new ways to clean up oil spills.
D. Factories contribute to air and water pollution
Physics
1 answer:
Daniel [21]3 years ago
4 0
D as that's the only negative shown out of those choices.
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2. Discuss the relationship between electric and magnetic fields.
just olya [345]
Electric fields are produced by two kinds of charges, positive and negative. Magnetic fields are associated with two magnetic poles, north and south, although they are also produced by charges
4 0
3 years ago
Read 2 more answers
The thickest and strongest chamber in the human heart is the left ventricle, responsible during systole for pumping oxygenated b
Bess [88]

Answer:

(a). The blood travel during this acceleration is 0.0231 m.

(b). The time for the blood to reach its peak speed is 0.0459 sec.

Explanation:

Given that,

Acceleration = 22.0 m/s²

Speed = 1.01 m/s

(a). We need to calculate the distance

Using equation of motion

v^2=u^2+2as

Where, v = final speed

u = initial speed

a = acceleration

s = distance

Put the value into the formula

(1.01)^2=0+2\times22.0\times s

s=\dfrac{(1.01)^2}{2\times22.0}

s=0.0231\ m

(b). We need to calculate the time

Using equation of motion

v =u+at

Put the value into the formula

1.01=0+22t

t=\dfrac{1.01}{22}

t=0.0459\ sec

Hence, (a). The blood travel during this acceleration is 0.0231 m.

(b). The time for the blood to reach its peak speed is 0.0459 sec.

4 0
3 years ago
The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 m/s2). If an object’s mas
lina2011 [118]

You just told us that  Weight = (mass) x (gravity),
and that mass=10kg and  gravity = 9.8 m/s².

All we need to do is write those numbers in place of the letters.

                     Weight = (10 kg) x (9.8 m/s²)  =  <em>98 newtons</em>.

6 0
4 years ago
What is the measured value always positive from one point to another
LekaFEV [45]
It is called "distance". In fact, distance measures how far apart two points are from each other, and it is always a positive number.
In mathematics, for instance, the distance between two points of coordinates (x1,y1) and (x2,y2) on a xy-plane is defined as
d= \sqrt{(x_1-x_2)^2 + (y_1-y_2)^2}
and by definition, this number is always positive.
4 0
3 years ago
A sample of gold has a volume of 2 cm3 and a mass of 38.6 grams. What would be the density, and three other properties of the sa
lukranit [14]

The density of the gold is calculated to be "19,300 kg/m³".

<u>Explanation:</u>

Given:

Volume = 2cm³

Mass = 38.6 grams.

To Find:

Density of the gold = ?

Solution:

Density is obtained by dividing mass of the sample by its volume and it is given in the units of kg/m³.

Mass in grams is converted into kg as,

1 g = 0.001 kg

38. 6 g = \frac{38.6}{1000} = 0.0386 kg

Now we have to convert cm³ to m³ as,

1 cm³ = 10⁻⁶ m³

2 cm³ = 2 × 10⁻⁶ m³

So Density = \frac{0.0386 k g}{2 \times 10^{-6} m^{3}}=19,300 \mathrm{kg} / \mathrm{m}^{3}

Physical properties of Gold:

  • Gold is a heavy metal.
  • It is Malleable and ductile.
  • It is a corrosion resistant element.
3 0
3 years ago
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