How many neutrons does C-13 have? A. 6 B. 7 C. 13 D. 19

A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50.0 km/h, (a) in what direction mus

GenaCL600 [577]

Answer:

a)θ=74.03° (N-E)

b)t=1.56 hr

Explanation:

Given that

Plane speed = 200 km/h

Wind speed = 55 km/h

Now from diagram

V is the resultant velocity of plane

$200^2=V^2+55^2$

V=192.28 km/h towards north

From triangle ABC

$cos\theta =\dfrac{55}{200}$

θ=74.03°

Given that

d=300 km

We know that

d = V x t

300 = 192.28 x t

t=1.56 hr

7 0

3 years ago

I need help ASAP!! What are the three types of acceleration??

fenix001 [56]

In physics, the three types of acceleration are changes in velocity (speed), changes in direction or changes in both

3 0

4 years ago

Read 2 more answers

I NEED HELP ASAP

Levart [38]

Answer:

ig d. transmits only green light.....

8 0

1 year ago

Young's double slit experiment is one of the quintessential experiments in physics. The availability of low cost lasers in recen

ddd [48]

Answer:

Fringe width = 21 mm

Explanation:

Fringe width is given by the formula

$\beta = \frac{\Lambda L}{d}$

here we know that

$\Lambda = 564 nm$

L = 4.0 m

d = 0.108 mm

now from above formula we will have

$\beta = \frac{(564 \times 10^{-9})(4.0 m)}{0.108\times 10^{-3}}$

$\beta = 0.021 meter$

so fringe width on the wall will be 21 mm

7 0

3 years ago

Explain How people can achieve an environmentally sustainable society .

anzhelika [568]

You can use this response or change the words around if you’d like to :)
answer: people can achieve an environmentally sustainable society by recycling, saving water, reducing the amount of household energy use and lastly reselling and donating items!

hope this helps! :)

6 0

4 years ago