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Korolek [52]
3 years ago
8

If your friend said that kinetic energy was changing to potential energy at point C, how would you respond? A) your friend is co

rrect B) your friend is incorrect, at this point, the cannonball just has kinetic energy C) your friend is incorrect, at this point, the cannonball just have potential energy D) your friend is incorrect, at this point, the cannonball is converting kinetic to potential energy
Physics
1 answer:
Travka [436]3 years ago
3 0

funny of u to assume I have friends

If I remember anything from that part of my education (not great at physics) I'd say the answer is A, though I admit i'm not 100% sure

I dunno how to explain, once it hits that's the energy that was converting I guess.

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Light of wavelength 500nm is passed through a diffraction grating which has 400 lines per mm. What is the angular spectrum betwe
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Answer:

because of the gravity of the earth

8 0
2 years ago
We would like to place an object 45.0cm in front of a lens and have its image appear on a screen 90.0cm behind the lens. What mu
liubo4ka [24]

Answer:

the radii of curvature is 30 cm.

Explanation:

given,

object is place at = 45 cm

image appears at = 90 cm

focal length = ?

refractive index = 1.5

radii of curvature = ?

\dfrac{1}{f} = \dfrac{1}{u} +\dfrac{1}{v}

\dfrac{1}{f} = \dfrac{1}{45} +\dfrac{1}{90}

f = 30 cm

using lens formula

\dfrac{1}{f} = (n-1)(\dfrac{1}{R_1} -\dfrac{1}{R_2})

R_1 = R\ and\ R_2 = -R

\dfrac{1}{f} = (n-1)(\dfrac{1}{R} +\dfrac{1}{R})

R = (n -1)\ f

R = 2(1.5 -1)\ 30

R = 30 cm

hence, the radii of curvature is 30 cm.

3 0
4 years ago
What is the mass of an object that requires 100N of force in order to accelerate 10m/s2
iragen [17]

Explanation:

Hey there!

Given;

Force (f) = 100 N

Acceleration (a) = 10m/s^2.

Mass (m)=?

We have;

Force = mass * acceleration.

So,

100 = m * 10

Or, 100 = 10m

Or, m= 100/10

Therefore, mass is 10kg.

<em><u>Hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

3 0
3 years ago
Galileo was the first scientist to do?
Shtirlitz [24]

Answer:

Discovered different planets.

Explanation:

8 0
3 years ago
"A jack-in-the-box is a toy in which a figure in an open box is pushed down, compressing a spring. The lid of the box is then cl
Svetlanka [38]
We know, Applied force(f) = Spring constant (K) * Extension of material (x)
Here, f = 12 N
x = 0.070 m

Substitute their values,   
12 = k * 0.070
k = 12 / 0.070
k = 171.43 N/m

In short, Your Answer would be 171.43 N/m

Hope this helps!
7 0
3 years ago
Read 2 more answers
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