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Bad White [126]
4 years ago
11

What is the definition of a point object?

Physics
1 answer:
Kaylis [27]4 years ago
4 0
Point object is an expression that is used in Kinematics. It refers the object whose dimensions are ignored or neglected and is treated as a dot object to simplify the calculations. When the object is treated as a point object it means the whole mass is summed in one point, you can imagine it as a sphere which has the mass and the radius is 0...
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Rotational dynamics physics question please help.
soldier1979 [14.2K]
Looking at the force-time graph, wouldn't the force be integral fdt between 0 and 10s, a sort of "smoothed out pulse" ? And it looks like a familiar bell shaped curve. doesn't that produce a turning effect/torque and isn't there something about a circular analogue to F=ma in newtonian linear mechs ???
Looks like a difficult question for 5 points
8 0
3 years ago
Use the following free body diagram to answer questions 8 and 9:
Nat2105 [25]

Answer:

8 is c and 9 is b it is shown though the practice as god lol

5 0
3 years ago
Read 2 more answers
The movement of bones around a fixed angle without lateral displacement is called
Alika [10]
The answer to the question being asked on what do you called when the movement of the bones around a fixed angle without lateral displacement is ROTATION. Rotation movement allows the bone to move in a single long axis without being displaced.
3 0
3 years ago
A capacitor is not the most efficient device for storing energy. Batteries can store more energy in much less space. For example
photoshop1234 [79]

Answer:

A=2.49\times 10^6\ m^2

Explanation:

Given that

Stored energy E

U=10^6\ J

a)

We know that stored energy in capacitor given as

U=\dfrac{1}{2}CV^2

Given that

V=10^4\ V

U=\dfrac{1}{2}CV^2

10^6=\dfrac{1}{2}\times C\times (10^4)^2

C= 0.02 F

b)

Electric filed E = 9 x 10^6 V/m

We know that

V = E .d

10^4=9\times 10^6\times d

d=1.11 mm

We know that

C=\dfrac{\varepsilon _oA}{d}

0.02=\dfrac{8.89\times 10^{-12}A}{1.11\times 10^{-3}}

A=2.49\times 10^6\ m^2

This is area  area of the plates.

5 0
3 years ago
A foam square has a mass of 62 g and a volume of 72 cm3. What is the density?
Luden [163]
It will be 62 over 72 so it is <span>0.861111111: Hope this helps</span>
3 0
3 years ago
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