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vladimir2022 [97]
3 years ago
11

Como sacar velocidad final sin tener el tiempo

Physics
1 answer:
Serhud [2]3 years ago
5 0
?????????como ??????? No entiendo
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The gravitational force between two spheres in outer space is 1000 n. how large would this force be if the mass of each sphere w
kipiarov [429]

The force will remain same if the mass of each sphere is doubled and the distance between them is doubled as well.

The force of gravitation between two spheres is given by

f=\frac{G m1 m2}{r^{2}}

m1= mass of first object

m2= mass of second object

r= distance between the masses

Now if each mass is doubled and the distance r is doubled as well

F'= \frac{G (2m1)(2m2)}{(2r)^{2}}

F'= \frac{4 G m1 m2}{4r^{2}}

F'=\frac{G m1 m2 }{r^{2}}

so F'= F

so the force remains same and is equal to 1000 N.

3 0
3 years ago
on a standard position vs time graph, the distance between two points on the horizontal axis represents the time interval, and t
Stels [109]

Answer: true

Explanation: I got the question and guessed true and it was right

3 0
3 years ago
A plaste horizontally at 150 m/s drops a package from an altitude of 1.3km. How far horizontally the package travel ?
tatuchka [14]
How ya doing today sir I’m sure not too good cuz u ain’t gettin the answer sry
6 0
3 years ago
1 kg ball rolls off a 33 m high cliff, and lands 23 m from the base of the cliff. Express the displacement and the gravitational
enyata [817]

Answer:

d = <23, 33, 0> m ,    F_W = <0, -9.8, 0> ,   W = -323.4 J

Explanation:

We can solve this exercise using projectile launch ratios, for the x-axis the displacement is

         x = vox t

Y Axis  

         y = v_{oy} t - ½ g t²

It's displacement is

      d = x i ^ + y j ^ + z k ^

Substituting

      d = (23 i ^ + 33 j ^ + 0) m

Using your notation

   d = <23, 33, 0> m

The force of gravity is the weight of the body

         W = m g

        W = 1  9.8 = 9.8 N

In vector notation, in general the upward direction is positive

         W = (0 i ^  - 9.8 j ^ + 0K ^) N

         W = <0, -9.8, 0>

Work is defined

           W = F. dy

             W = F dy cos θ

In this case the force of gravity points downwards and the displacement points upwards, so the angle between the two is 180º

          Cos 180 = -1

           W = -F y

           W = - 9.8 (33-0)

           W = -323.4 J

6 0
3 years ago
Does Anybody Know The Answers?
ch4aika [34]

Answer:

I was going to give you the paper where I saw it but since you are not giving enough points I can not give you so I am only going to give you some of these that are here sorry

Explanation:

1.

9^{2} + 12^2 = x^2\\81 + 144= x^2\\\sqrt{225} = \sqrt{x} \\         15=x\\\\ 2.\\x^2+12^2+=13^2\\x^2+144 =169\\x^2 = 25\\\sqrt{x^2 =\sqrt{25\\\\

x=5

3.\\12^2+32^2 = x^2\\34.176= x

7.

5,12,13

9.

\frac{x}{4} ,\frac{12}{4} ,\frac{20}{4}\\\\\frac{x}{4},3,5  \\\\x=16\\\\12. \\x^2 + 48^2=50^2\\\\x^2=196\\x=14

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5 0
3 years ago
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