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1 year ago

When you think about and describe the characteristics of a giraffe, what type of model are you using?

Physics

1 answer:

Tpy6a [65]1 year ago

4 0

Answer:

The giraffe is the tallest of all mammals. It reaches an overall height of 18 ft (5.5 m) or more. The legs and neck are extremely long. The giraffe has a short body, a tufted tail, a short mane, and short skin-covered horns

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What is the value of acceleration as a body moves with an uniform speed

Levart [38]

Answer:

the value of acceleration as a body moves with an uniform speed is zero

4 0

2 years ago

Two 0.2304 cm x 0.2304 cm square aluminum electrodes, spaced 0.5974 mm apart are connected to a 61 V battery. What is the charge

Arisa [49]

Answer:

The charge on each plate is 0.0048 nC

Explanation:

for the distance between the plates d and given the area of plates, A, and ε = 8.85×10^-12 C^2/N.m^2, the capacitance of the plates is given by:

C = (A×ε)/d

=[(0.2304×10^-2)(0.2304×10^-2)×(8.85×10^-12))/(0.5974×10^-3)

= 7.86×10^-14 F

then if the plates are connected to a battery of voltage V = 61 V, the charge on the plates is given by:

q = C×V

= (7.86×10^-14)×(61)

= 4.80×10^-14 C

≈ 0.0048 nC

Therefore, the charge on each plate is 0.0048 nC.

3 0

2 years ago

How can scientists know for sure that the cell theory is true ? What evidence do we have to prove it

Nikolay [14]

The basic unit of life, it can be seen wit microscopes

3 0

3 years ago

A wire with a circular cross section has radius 0.16 mm and is lying along the x axis from x=0 to x=0.20 m. The wire is made of

kipiarov [429]

Answer:

Resistance = 68.23 Ω

Explanation:

Let's start off by remembering the fact that when resistors are connected in series, their resistances is added up to find the total resistance.

The equation for resistance using resistivity is given below:

Resistance = Resistivity * Length / Area

where Length = x

Resistivity = 3x^5

and Area = $\pi *0.00016^2$ = 8.04 * 10^(-8) meter squared

Substituting in the value of resistivity, length and area we get:

Resistance = $\frac{ (3x^5) * (x) }{(8.04*10^-^8)}$

Resistance = $\frac{ (3x^6) }{(8.04*10^-^8)}$

Since resistance in series is added, we can simply integrate this formula over the length (x = 0 to x = 0.2) to get the total resistance.

Resistance = $\int\ {\frac{ (3x^6) }{(8.04*10^-^8)}} \, dx$

Resistance = $(5.4857*10^-^6) /(8.04*10^-^8)$

Resistance = 68.23 Ω

3 0

3 years ago

Read 2 more answers

51. If two cylinders of dissimilar geometry are connected together to form a closed hydrostatic system, why would one cylinder p

Ipatiy [6.2K]

Answer:

see that for the same pressure the displaced height in each cylinder is different because its diameter is different. Pascal's principle

Explanation:

The pressure on a system is given by the relations

P = ρ g h

P = F / A

where ρ is the density of the liquid, h the height and A the area

The expressions above we see that if for the same height the pressure is the same regardless of the shape of the cylinder.

With the second expression we see that if the system has a different area, the pressure is

P = $\frac{F_{1} }{A_{1} } = \frac{F_{2} }{A_{2} }$

where we use subscript 1 for one body and subscript 2 for the other body

F₁ = $\frac{A_{1} }{A_{2} } F_{2}$

The cylinder displacement is

V = A h

where V is the volume and h the height, in general the liquids are incompressible therefore the displaced volume is constant in the two bodies

V = A₁ h₁ = A₂ h₂

$\frac{A_{1} }{A_2} = \frac{h_2}{h_1}$

we substitute

F₁ = $\frac{h_2}{h_1}$ F2

From here we see that for the same pressure the displaced height in each cylinder is different because its diameter is different.

If the diameter is the same, the offset height is the same

7 0

2 years ago