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Arada [10]
2 years ago
8

Need help asap please......

Physics
2 answers:
alexandr402 [8]2 years ago
8 0

Answer:

The Answer is A. The slope is upward.

Explanation:

Alinara [238K]2 years ago
3 0

Answer:

Im pretty sure it is A!

Explanation:

It is A because the velocity is increasing, and acceleration is positive, plz mark as brainliest if correct!

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a car travels West 50km for 2 hours before heading south at a rate of 30 km per hour for 1.5 hours. What is the car's average sp
inn [45]

Answer:

Explanation:

average speed is distance traveled over time

v = (50 + 30(1.5)) / (2 + 1.5) = 27.1428571...

v = 27 km/hr

6 0
3 years ago
1)Light of wavelength 588.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 55.5 cm from the slit
Talja [164]

Answer:

These are Diffraction Grating Questions.

Q1. To determine the width of the slit in micrometers (μm), we will need to use the expression for distance along the screen from the center maximum to the nth minimum on one side:  

Given as  

y = nDλ/w                                                       Eqn 1

where  

w = width of slit  

D = distance to screen  

λ = wavelength of light  

n = order number  

Making x the subject of the formula gives,  

w = nDλ/y  

Given  

y = 0.0149 m  

D = 0.555 m  

λ = 588 x 10-9 m  

and n = 3

w = 6.6x10⁻⁵m

Hence, the width of the slit w, in micrometers (μm) = 66μm

Q2. To determine the linear distance Δx, between the ninth order maximum and the fifth order maximum on the screen

i.e we have to find the difference between distance along the screen (y₉-y₅) = Δx

Recall Eqn 1,     y = nDλ/w  

given, D = 27cm = 0.27m  

λ = 632 x 10-9 m  

w = 0.1mm = 1.0x10⁻⁴m

For the 9th order, n = 9,

y₉ = 9 x 0.27 x 632 x 10-9/ 1.0x10⁻⁴m = 0.015m

Similarly, for n = 5,

y₅ = 5x 0.27 x 632 x 10-9/ 1.0x10⁻⁴m = 0.0085m

Recall,  Δx = (y₉-y₅) = 0.015 - 0.0085 = 0.0065m

Hence, the linear distance Δx between the ninth order maximum and the fifth order maximum on the screen = 6.5mm

8 0
2 years ago
1200 meters is less than 1 kilometer
SashulF [63]
<span>1200 meters is less than 1 kilometer 
</span>is false


4 0
3 years ago
Read 2 more answers
I need help with this question, could you help me? :))) ASAP
Pepsi [2]
Oh ya the correct answer for this is B I think because structure B
4 0
2 years ago
In general, fitness evaluations are meant to help you measure your physical fitness against those of similar age and gender
kirill [66]

Answer:

true

Explanation:

edge2020

8 0
3 years ago
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