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4 years ago

Identify the role of each organism in the food chain.

Physics

2 answers:

Troyanec [42]4 years ago

5 0

Answer:

primary consumer, secondary consumer, tertiary consumer, producer, decomposer

Explanation:

the grass is the producer, the mushroom is the decomposer, the dragonfly is the primary consumer, the frog is the secondary, and the hawk is the tertiary consumer.

Stels [109]4 years ago

3 0

Answer:

If the dragonfly eats grass, the frog eats the dragon fly, the snake eats the frog, and the hawk the snake. That means:

dragonfly - consumer

frog - consumer

grass - producer

hawk - consumer

If the mushrooms decompose dead organisms. That means:

mushrooms - decomposer

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An object 16.8 cm tall is placed in front of a converging lens. A real image, 46 cm tall, is formed on the other side of the len

worty [1.4K]

Answer:

2.74

Explanation:

Magnification = image distance/object distance

Mag = v/u

Given

v = 46cm

u = 16.8

Magnification = 46/16.8

Magnification = 2.74

Hence the magnification is 2.74

7 0

3 years ago

A parallel-plate vacuum capacitor has 8.38 J of energy stored in it. The separation between the plates is 2.30 mm. If the separa

Elanso [62]

Answer:

Explanation:

plate separation = 2.3 x 10⁻³ m

capacity C₁ = ε A / d

= ε A / 2.3 x 10⁻³

C₂ = ε A / 1.15 x 10⁻³

$\frac{C_2}{C_1}$ = $\frac{2.3}{1.15}$

a ) when charge remains constant

energy = $\frac{q^2}{2C}$

q is charge and C is capacity

energy stored initially E₁= $\frac{q^2}{2C_1}$

energy stored finally E₂ = $\frac{q^2}{2C_2}$

$\frac{E_1}{E_2} = \frac{C_2}{C_1}$ = $\frac{2.3}{1.15}$

$E_2$ = $\frac{1.15}{2.3 } \times E_1$

= $\frac{1.15}{2.3 } \times 8.38$

= 4.19 J

b )

In this case potential diff remains constant

energy of capacitor = 1/2 C V²

energy is proportional to capacity as V is constant .

$\frac{E_2}{E_1} = \frac{C_2}{C_1}$

$\frac{E_2}{8.38} = \frac{2.3}{1.15}$

$E_2$ = 16.76 .

8 0

3 years ago

The vibrations of a string fixed at both ends are represented by y=16sin(πx/15 )cos(96πt). Where x and y are in cm and t in seco

patriot [66]

Answer:

Explanation:

y = 16 sinπx/15 cos(96πt)

When t = 0

y = 16 sinπx/15

here πx/15 is phase of the point at x

if x = 13

Phase = 13π/15

if x = 16

Phase = 16π/15

Phase difference

= 16π/15 - 13π/15

= 3π/15

= π/5 radian .

7 0

3 years ago

An object starts from rest at the origin (x0 = 0) and travels in a straight line with a constant acceleration (a = constant). Su

agasfer [191]

Answer:

$a=(6.8)\ m/s^2$

Explanation:

Given that,

An object starts from rest at the origin (x₀ = 0) and travels in a straight line with a constant acceleration (a = constant).

The relation between the position (x) and time (t) is given by :

$x=(3.4t^2)\ m/s^2$

Let v is the velocity of the object.

$v=\dfrac{dx}{dt}$

$v=\dfrac{d(3.4t^2)}{dt}$

$v=(6.8t)\ m/s$

Let a is the acceleration of the object. It is given by :

$a=\dfrac{dv}{dt}$

$a=\dfrac{d(6.8t)}{dt}$

$a=(6.8)\ m/s^2$

So, the acceleration of the object is $(6.8)\ m/s^2$ . Hence, this is the required solution.

4 0

3 years ago

Isla’s change in velocity is 30 m/s, and Hazel has the same change in velocity. Which best explains why they would have differen

Mashcka [7]

Answer:

The answer is B) Isla had a different time than hazel

Explanation:

5 0

4 years ago