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tankabanditka [31]
3 years ago
9

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1). What is refractive index?​
Physics
2 answers:
Fed [463]3 years ago
6 0

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natta225 [31]3 years ago
5 0

Answer:

the refractive index variable is n or n'

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Battery life is what distinguishes one type of mobile computer from another.
BlackZzzverrR [31]
I think the statement is false. It is not only the battery life that would distinguish one type of mobile computer from another. There are other aspects that would characterize every mobile computer. It could be the brand, the size, the operating system, the hardware specifications like the RAM, processor and the video card. Every mobile computer would vary depending on the brand, model and intended use.
8 0
4 years ago
If it takes 32,000 joules of heat to warm 750 g of water, what was the temperature change?(the specific heat of water is 4.18 J/
Firdavs [7]

Answer:

10.21°C

Explanation:

From the question,we are given;

  • Quantity of heat = 32,000 Joules
  • Mass of water = 750 g
  • Specific heat capacity of water = 4.18 J/g°C

We are required to calculate the change in temperature;

  • We need to know that quantity of heat is calculated by multiplying mass by specific heat then by change in temperature.
  • That is;

Q = m × c × ΔT

Rearranging the formula;

ΔT = (Q ÷ (m × c))

     = 32,000 J ÷ (750× 4.18 J/g°C)

     = 10.21°C

Therefore, the change in temperature  is 10.21°C

7 0
3 years ago
Calculate the volume of this regular solid. A cylinder labeled B at the top, 13 centimeters high with a radius of 4 centimeters.
Kryger [21]

Answer:

The volume of the cylinder is 653.71\ \text{cm}^3

Explanation:

Given that,

The height of the cylinder is 13 cm

Radius of the cylinder is 4 cm

We need to find the volume of the cylinder. The formula that is used to find the volume of a cylinder is given by :

V=\pi r^2 h\\\\V=\dfrac{22}{7} \times (4)^2 \times 13\\\\V=653.71\ \text{cm}^3

So, the volume of the cylinder is 653.71\ \text{cm}^3

4 0
3 years ago
Read 2 more answers
Archerfish are tropical fish that hunt by shooting drops of water from their mouths at insects above the water’s surface to knoc
sesenic [268]

Answer:

(b) 0.012 m/s

Explanation:

Given that:

mass (m₁) of the drop of water = 0.30 g = 3.0 × 10⁻⁴ kg

mass (M₂) of the fish = 65 g =  65 × 10⁻³ kg

speed (v₁) of the water = 2.5 m/s

speed (v₂) of the archerfish = ??

By conservation of momentum

m₁v₁ - M₂v₂ = 0

m₁v₁  = M₂v₂

v₂ = m₁v₁ / M₂

v₂ =  ( 3.0 × 10⁻⁴ × 2.5 ) /  65 × 10⁻³

v₂ = 0.0115 m/s

v₂ ≅ 0.012 m/s

Therefore, the speed of the archerfish immediately after it expels the drop of water 0.012 m/s.

5 0
4 years ago
What is a satellite?
goldfiish [28.3K]

Answer:b

Explanation:

because a satellite is used to tell the exact location and to communicate

3 0
3 years ago
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