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lawyer [7]
4 years ago
12

What average net force is required to stop a 4.5 kg bowling ball,initially at rest, accelerated for 6 seconds over a distance of

3 m
Physics
1 answer:
tatuchka [14]4 years ago
4 0

Answer:

32

Explanation:

4.4 x 6x3=-03o4-

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Two poles are connected by a wire that is also connected to the ground. The first pole is 20ft tall and the second pole is 10ft
Natasha2012 [34]

Answer: 31.6ft

Explanation:

Check the attachment for the diagram.

According to the right angle triangle AEC, we will use Pythagoras theorem to get |AC|. Note that |AE| = |AB| - |CD|

that is 20ft - 10ft = 10ft

According to the theorem, the square of the sum of the adjacent side and the opposite side is equal to the square of the hypotenuse.

|AE|^2 + |EC|^2 = |AC|^2

10^2 + 30^2 = |AC|^2

100 + 900 = |AC|^2

|AC| = √1000

|AC| = 31.6ft

Therefore, the wire should be anchored 31.6ft to the ground to minimize the amount of wire needed.

6 0
4 years ago
Explain how does a convex lens produce real image from virtual object​
Sphinxa [80]

Answer:

Real images are formed where rays of light actually converge, whereas virtual images occur with they are perceived to converge. Real images can be produced by passing light through converging lenses or with a concave mirror of some sort.

Explanation:

hope that helped a little :)

6 0
3 years ago
Read 2 more answers
A force of 10 N acts on a mass of 5 kg producing an acceleration of 1.5 m/s2. What is the magnitude of
yulyashka [42]

The answer is

2.5 N

B

this needs to be 20 letters long so this part doesn't matter

5 0
3 years ago
1 A truck covers a distance of 580km in 7 hours - Calculate<br>the velocity in km/hr​
Digiron [165]

Answer:

82.86

Explanation:

to find velocity you displacement by time

3 0
3 years ago
Why do objects in equilibrium have a net force of 0?
lianna [129]

Answer:

Because there is no net force acting o an object in equilibrium.

Explanation:

When object is in equilibrium (either at rest or moving with constant velocity, the net force acting o it is zero.A vector can only have zero magnitude fall of its components are zero this means that all forces acting on the object are balanced.

3 0
3 years ago
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