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yawa3891 [41]
3 years ago
6

The three things to remember about gravitational forces in space are: 1. 2. 3.

Physics
1 answer:
Reil [10]3 years ago
3 0

The three things to remember about gravitational forces in space are:

(1) The gravitational forces are inversely proportional to the square of the distance between the objects. More is the distance between the objects , less will be the gravitational force between them.

(2) The gravitational forces are the weakest of all the four fundamental forces (Nuclear forces, weak forces, electromagnetic forces, gravitational forces) in nature.

(3)Gravitational forces are always attractive . They are also conservative in nature. work done by these forces or against these forces doesn't depend on the path followed.

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A 0.45kg football is thrown in the air and travels at a velocity of 26m/s. Calculate the momentum of the football.
Maslowich

Answer:

11.7 I don't really know the unit for momentum, I think its p but I don't know

Explanation:

u have to multiply to get the momentum

3 0
3 years ago
How many electrons are shared by two atoms that form a triple bond
igomit [66]

Answer: 6. 3 pairs of electron

Explanation:

A triple bond occurs when two atoms in a molecule shares 3 pairs of electron. A triple bond is also, a type of bond under the Covalent bond, which also includes, double bond and single bond.

Typically, a Covalent bond contains 2 elections. 1 from each atom. This means that, triple bond contains 6 electrons since there are three Covalent bonds, in a triple bond.

A triple bond is stronger than a single bond. It is characterized by sigma bonds between hybridized orbitals, and pi bonds between unhybridized p orbitals.

A triple bond is also vulnerable to "electron thieves". Example of compound with triple bond includes Dinitrogen, acetylene, carbon monoxide etc

6 0
3 years ago
Read 2 more answers
A ball is kicked from the ground into the air at a velocity of 3 m/s at an angle 35° above the horizontal and hits the ground so
Dennis_Churaev [7]

Answer:2.45 m/s

Explanation:

Given

Launch velocity(u)=3 m/s

launch angle=35^{\circ}

as the vertical velocity first decreasing to zero and then increases to original value so its avg is zero .

v_{avg}=\frac{displacement}{time}

v_{avg}=\frac{Range}{time}

v_{avg}=\frac{u\cos \theta \times t}{t}

thus v_{avg}=\frac{3\cos 35\times t}{t}

v_{avg}=3\cos 35=2.45 m/s

8 0
3 years ago
How can humans building a drainage system affect the water cycle?
nasty-shy [4]
Human building a drainage system could affect the water cycle because : 
C. water would be directed to a new location because of the drains

This could potentially changed the natural occurrence that usually happened within the water cycle

hope this helps


5 0
3 years ago
Read 2 more answers
A boy of mass 50 kg exerts a pressure of 25000 pa calculate the area
gtnhenbr [62]

Answer: A = 0.02 m²

Explanation: Solution:

Pressure is expressed in the formula:

P = F / A       where F = mg

  = mg /A

  = 50 kg ( 9.8 m/s²) / 25000 Pa

  =  0.02 m²

3 0
3 years ago
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