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3 years ago

HELP ME PLEASE! IF NOT THEN DON'T ANSWER PLEASE. THANK YOU!

Physics

2 answers:

Fudgin [204]3 years ago

8 0

9n and 7n is answered and you know this a

igor_vitrenko [27]3 years ago

5 0

Explanation:

9N and 7N is answered and you know this a

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Estimate the linear separation (in kilometers) of two objects at a distance of 2.6 × 108 km that can just be resolved by an obse

cestrela7 [59]

Answer:

34892 km

34.892 km

Explanation:

L = Distance of two objects = $2.6\times 10^8\ km$

$\lambda$ = Wavelength = 550 nm

When d = Diameter of pupil = 5 mm

Linear separation

$\frac{D}{L}=\frac{1.22\lambda}{d}\\\Rightarrow D=\frac{1.22\lambda L}{d}\\\Rightarrow D=\frac{1.22\times 550\times 10^{-9}\times 2.6\times 10^8\times 10^3}{5\times 10^{-3}}\\\Rightarrow D=34892000\ m=34892\ km$

Linear separation = 34892 km

When d = 5 m

$\frac{D}{L}=\frac{1.22\lambda}{d}\\\Rightarrow D=\frac{1.22\lambda L}{d}\\\Rightarrow D=\frac{1.22\times 550\times 10^{-9}\times 2.6\times 10^8\times 10^3}{5}\\\Rightarrow D=34892\ m=34.892\ km$

Linear separation = 34.892 km

6 0

3 years ago

An algorithm takes 5 seconds for input size 200. how long will it take for input size 1000 if the running time is linear (assume

PSYCHO15rus [73]

It would take 25 seconds

5 0

2 years ago

In the diagram below, a 5 kg box is pushed from rest by an applied force of 15N for 22 seconds. What was the impulse caused by t

Yakvenalex [24]

Answer:

330Ns

Explanation:

Given parameters:

Mass of the box = 5kg

Initial velocity = 0m/s

Force applied = 15N

Time = 22s

Unknown:

Impulse = ?

Final momentum = ?

Solution:

The impulse of the box can be determined using the expression below:

Impulse = Force x time

Impulse = 15 x 22 = 330Ns

The final momentum is the same as this impulse

The impulse and the final momentum is 330Ns

4 0

3 years ago

Consider the potential energy diagram shown below. This graph shows the chemical potential energy in a reaction system over time

kolbaska11 [484]

Answer:

A. Endothermic reaction.

B. +150KJ.

C. 250KJ.

Explanation:

A. The graph represents endothermic reaction because the heat of the product is higher than the heat of the reactant.

B. Determination of the enthalpy change, ΔH for the reaction. This can be obtained as follow:

Heat of reactant (Hr) = 50KJ

Heat of product (Hp) = 200KJ

Enthalphy change (ΔH) =..?

Enthalphy change = Heat of product – Heat of reactant.

ΔH = Hp – Hr

ΔH = 200 – 50

ΔH = +150KJ

Therefore, the enthalphy change for the reaction is +150KJ

C. The activation energy for the reaction is the energy at the peak of the diagram.

From the diagram, the activation energy is 250KJ.

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3 years ago

V02 Zone 90-100% MHR; =BPM

shepuryov [24]

Don’t use those links!!! there scams

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3 years ago