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USPshnik [31]
3 years ago
14

A _____ has to do with the direction of a force​

Physics
2 answers:
eimsori [14]3 years ago
6 0
In science, work is defined as the action that results when a force causes an object to move in the direction of the force. ... The object moves as a force is applied. The direction of the object's motion is the same as the direction of the force applied.
Elenna [48]3 years ago
3 0

Answer:

The "solid force"? ... The direction of the force always seems to be coming out of the solid surface. A direction which is perpendicular to the plane of a surface is said to be normal. The force that a solid surface exerts on anything in the normal direction is called the normal force.

Explanation:

i think i hope this helps

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Can someone please explain to me what in the hell this asking?
Bas_tet [7]
As air heats up, air molecules occupy a larger area comparitively to cool air. To summerize, the ball will appear to be "more inflated."
4 0
3 years ago
The safe load for a certain horizontal beam used to hold up part of a building varies inversely as the length between the suppor
ryzh [129]

Answer:

The answer is true.

Explanation:

7 0
3 years ago
A tugboat tows a ship with a constant force of magnitude F1. The increase in the ship's speed during a 10 s interval is 3 km/h.
Amanda [17]

Answer:

F_{1}=\frac{1}{5}F_{2}  or  F_{2}=5F_{1}

In other words, F_{1} is one fifth of F_{2} or F_{2} is five times as big as F_{1}

Explanation:

In order to solve this problem we must start by sketching the situation (refer to the attached picture).

When the ship is pulled only by force 1, it will change its speed by 3km/hr in 10 seconds. So in order to use these values we need to either turn the km/hr in km/s or turn the seconds to hours. Let's turn the seconds to hours:

10s*\frac{1hr}{3600s}=\frac{1}{360} hr

so we can now use the acceleration formula to find the acceleration of the boat so we get:

a=\frac{\Delta v}{\Delta t}

which will give us an accceleration of:

a=\frac{3km/hr}{\frac{1}{360}hr}=1080km/hr^{2}

once we got the acceleration we can for sure say taht:

F_{1}=ma=m*1080\frac{km}{hr^{2}}

Now, if we take a look at the second drawing we can see that the resultant force applied to the boat is found by adding the two forces, force one and force two, so we get:

F_{1}+F_{2}=ma

in this case the acceleration changes because the change in velocity is of 18km/hr in the same 10 seconds, so we get that:

a=\frac{\Delta v}{\Delta t}

a=\frac{18km/hr}{\frac{1}{360}hr}=6480km/hr^{2}

so we can say that:

F_{1}+F_{2}=m*6480km/hr^{2}

we can substitute the first force into this equation so we get:

m*1080km/hr^{2}+F_{2}=m*6480km/hr^{2}

and solve for the second force, so we get:

F_{2}=m*6480km/hr^{2}-m*1080km/hr^{2}

which yields:

F_{2}=m*5400km/hr^{2}

Now we can compare theh two forces, force 1 and force 2 by dividing them:

\frac{F_{1}}{F_{2}}=\frac{m*1080km/hr^{2}}{m*5400km/hr^{2}}

which yields:

\frac{F_{1}}{F_{2}}=\frac{1}{5}

when solving for the first force we get:

F_{1}=\frac{1}{5}F_{2}

which tells us that the second force is one fifth of the first force.

and when solving for the second force we get that:

F_{2}=5F_{1}

which means that the second force is 5 times as big as the first force.

8 0
3 years ago
Calculate the impulse of a 0.140 kg baseball that starts at rest on a tee and reaches a final velocity of 20 m/s after being str
oee [108]

Explanation:

<h2>impulse = change in momentum</h2><h2>F×t =m(v-u)</h2><h2>I = 0.140(20-0)</h2><h2>I = 0.140 × 20</h2><h2>I = 2.8NS</h2>
5 0
3 years ago
Read 2 more answers
Balance the following chemical equation:<br> H3PO4 + HCl → PC15 + H20
kipiarov [429]

Answer:

H3PO4 + 5HCl → PCl5 + 4H2O

Explanation:

3 0
3 years ago
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