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-Dominant- [34]
3 years ago
6

What is the most interesting or surprising thing you learned about contact and non-contact forces?

Physics
2 answers:
beks73 [17]3 years ago
4 0

Answer:

nothing interest, i just hate that part i love only the calculations

Deffense [45]3 years ago
4 0

Answer:

yo mom jumping on me cuz of gravity

Explanation:

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the andromeda galaxy is approaching our galaxy with a radial velocity of 120 km/s. given the galaxies present separation of 800
Nookie1986 [14]

The andromeda galaxy is approaching our galaxy with a radial velocity of 120 km/s. given the galaxies present separation of 800 kpc, and neglecting both the transverse component of the velocity and the effect of gravity in accelerating the motion, estimate when the two galaxies will collide.

The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy that is 2.5 million light-years away from Earth and the closest big galaxy to the Milky Way. It has a diameter of roughly 46.56 kiloparsecs.

The Milky Way, which houses the Solar System and Earth, and the Andromeda Galaxy are anticipated to collide in roughly 4.5 billion years. This galactic collision will take place between the two largest galaxies in the Local Group. The Andromeda galaxy is the brightest galaxy outside of our solar system. It is the furthest object that the majority of us humans can see with our unaided eyes at a distance of 2.5 million light-years.

To learn more about Andromeda galaxy please visit-
brainly.com/question/14494804
#SPJ4

4 0
2 years ago
A particle of mass m = 13 kg moves in space under the action of a conservative force. Its potential energy is given by PE = 2xyz
Helen [10]

Answer:

F_{x} = -12 N ,  F_{y} = -80 N  and  F_{z} = - 44 N

Explanation:

The force is related to the potential energy by the formula

      F = -Δ U = - ( \frac{dU}{dx} i ^ + \frac{dU}{dy} j ^ + \frac{dU}{dz}k ^)

It indicates the potential energy

      U = 2xyz + 3z² + 4yx + 16

To solve this problem let's make the derivatives, to find each component of the force

       \frac{dU}{dx} = 2yz + 0 + 4y  + 0 = 2yz + 4y

       \frac{dU}{dx} = 2xz + 0 + 4x  + 0 = 2xz + 4x

      \frac{dU}{dx} = 2xy + 3 2z + 0 +0 = 2xy + 6z

We look for the expression for the force in each axis

      F_{x} = - 2yz - 4y

      F_{y} = -2xz -4x

      F_{z} = -2xy -6z

We calculate at the point P = (20 i ^ + 1j ^ + 4 k ^) m

        F_{x} = - 2 1 4 - 4 1

        F_{x} = -12 N

        F_{y} = - 2 20 4 - 4 20

        F_{y} = -80 N

        F_{z}= - 20 1 - 6 4

        F_{z} = - 44 N

We put together the expression for strength

        F = (-12 i ^ - 80j ^ -44k ^) N

5 0
4 years ago
Why is the Earth generally warmer at the equator than at the poles?
Elenna [48]
Because of the earths curve and temperature. The temperature in an area depends on the amount of the Sun's energy reaching the surface in that area. The equator tilts closer to the sun than the poles do. I hope this helps!
5 0
3 years ago
Read 2 more answers
A branch falls from a tree how fast is the branch moving after drug .28 seconds
alexdok [17]
Acceleration=9.81m/s^2
initial velocity=0m/s
time=.28s

We have to find final velocity.

The equation we use is

Final velocity=initial velocity+acceleration x time

Vf=0m/s+(9.81m/s^2)(.28s)
Vf=2.7468m/s

We would round this to:

Vf (final velocity)=2.7m/s
6 0
3 years ago
Express the vector R<br> B<br> in terms of A, B, C, and Ď, the edges of a<br> parallelogram.
Vadim26 [7]

Answer:

R=0.5B+0.5C+2A+D

Explanation:

By the triangular law of vector addition

vector R= vector B- vector D

As A,B,C,D are edges of the parallelogram,

A is parallel to D but opposite in direction.

Therefore

A = (-D);A//D;

2A=-2D

B is parallel to C and in same direction.

B//C\\B=C\\

0.5B=0.5C\\

R= B-D;\\R= 0.5B+0.5B-D;\\R=0.5B+0.5C-D;\\R=0.5B+0.5C-2D+D;\\R=0.5B+0.5C+2A+D;

7 0
3 years ago
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