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3 years ago

Can anyone provide me the answer with explanation?

Physics

2 answers:

NARA [144]3 years ago

6 0

Answer:

Explanation:

This is so because different materials vary in resistance and conductance of current, heat. Metals are good conductors while none metals like rubber, plastic, glass etc are good insulators or resistors.

zmey [24]3 years ago

5 0

Answer:

the answer to your question us c honey

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Sigma F = T-10m but a = 0 in the equation sigma F = ma

julsineya [31]

Answer:

m = T/10 = (1/10) T

Explanation:

From the question given:

∑F = ma .... (1)

∑F = T – 10m .... (2)

a = 0 m/s²

m =?

Thus, we can obtain m in terms of T as shown below:

From equation (1)

∑F = ma

a = 0 m/s²

∑F = ma = m × 0

∑F = 0

Next, substitute the value of ∑F into equation (2) to obtain m. This is illustrated below:

∑F = T – 10m

∑F = 0

0 = T – 10m

Rearrange

0 + 10m = T

10m = T

Divide both side by 10

m = T/10

m = (1/10) T

Therefore, m is (1/10) T

3 0

3 years ago

7) Se calcula dividiendo distancia entre tiempo

sveta [45]

Answer:

A) Rapidez

Explanation:

Speed is a scalar quantity and it is found by dividing the distance traveled by the time taken.

Speed = $\frac{distance}{time}$

Distance is the length of path covered whereas time is the duration of the travel.

Unlike velocity which is a vector, speed is a scalar quantity with only magnitude but no direction.

5 0

3 years ago

a block of ice accelerates and two meters per second dies has mass of 2 kilograms what is the size force it is acting on it

Dennis_Churaev [7]

F=ma
Force=mass*acceleration
So plug in the values
Hint: the force would be measured in newtons

6 0

3 years ago

A car traveling at 38 m/s starts to decelerate steadily. It comes to a complete stop in 7 seconds. What is its acceleration?

Katena32 [7]

a = 38 m/s / 7s

a = 5.43 ms⁻²

8 0

3 years ago

Cho lực F ⃗=6x^3 i ⃗-4yj ⃗ tác dụng lên vật làm vật chuyển động từ A(-2,5) đến B(4,7). Vậy công của lực là:

Natasha2012 [34]

The work done by $\vec F$ along the given path C from A to B is given by the line integral,

$\displaystyle \int_C \mathbf F\cdot\mathrm d\mathbf r$

I assume the path itself is a line segment, which can be parameterized by

$\vec r(t) = (1-t)(-2\,\vec\imath + 5\,\vec\jmath) + t(4\,\vec\imath+7\,\vec\jmath) \\\\ \vec r(t) = (6t-2)\,\vec\imath+(2t+5)\,\vec\jmath \\\\ \vec r(t) = x(t)\,\vec\imath + y(t)\,\vec\jmath$

with 0 ≤ t ≤ 1. Then the work performed by F along C is

$\displaystyle \int_0^1 \left(6x(t)^3\,\vec\imath-4y(t)\,\vec\jmath\right)\cdot\frac{\mathrm d}{\mathrm dt}\left[x(t)\,\vec\imath + y(t)\,\vec\jmath\right]\,\mathrm dt \\\\ = \int_0^1 (288(3t-1)^3-8(2t+5)) \,\mathrm dt = \boxed{312}$

7 0

3 years ago

Can anyone provide me the answer with explanation?​

Can anyone provide me the answer with explanation?