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gladu [14]
4 years ago
12

Two blocks are connected as shown in the diagram below. Assume that the ramp is frictionless. Draw the force diagram for the blo

ck on the ramp
x-apple-ql-id://72E64017-DA83-43AB-B493-EDC462018E16/x-apple-ql-magic/35856A40-E2D1-4A5F-A1C7-B39A61D6F3E7.pdf

What is the x-component of the force of gravity acting on the block on the ramp?
What is the acceleration of the block?
Physics
1 answer:
cluponka [151]4 years ago
5 0

Answer:

diagram: see image, x-component: 84.3 N, acceleration: 4.38 m/s^2

Explanation:

(see image for further explanation)

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2. Predict what will happen if the 80 kg adult was further from the pivot (more right) and explain your reasoning. 3. Predict wh
Alika [10]

Answer:

2) τ = F x  torque increases, 3) troque decreases,

4)  man approaches the pivot and the child must move away

5)  Σ τ = 0

Explanation:

2) when the man moves away from the pivot his torque increases significantly, since his distance increases

                 τ = F x

                 τ = m g x

therefore the system rotates faster

3) when the child approaches the pivot, his troque decreases, because the distance decreases

                 τ = f x

therefore the system must spin slower

4) If we place the man and the child on the side of a scale, the movement must be the man approaches the pivot and the child must move away, so that the torque is the same and the system can reach a balance

5) the rotational equilibrium expression

                 Σ τ = 0

is the one that describes the equilibrium of a system with several forces

8 0
3 years ago
Will the sun explode in future?​
anzhelika [568]

Answer:

Explanation:

The Sun won't explode. ... Eventually (in five or seven billion years time), the Sun's life will come to an end. Our star will swell up, becoming something called a “Red Giant” star. It might even get so big that it swallows the Earth whole.

6 0
3 years ago
The electric field between two parallel plates is uniform, with magnitude 646 N/C. A proton is held stationary at the positive p
Ahat [919]

Answer:

The distance from the positive plate at which the two pass each other is 0.0023 cm.

Explanation:

We need to find the acceleration of each particle first. Let's use the electric force equation.

F=Eq

ma=Eq

<u>For the proton</u>

m_{p}a_{p}=Eq_{p}

a_{p}=\frac{Eq_{p}}{m_{p}}

a_{p}=\frac{646*1.6*10^{-19}}{1.67*10^{−27}}

a_{p}=6.19*10^{10}\: m/s^{2}

<u>For the electron</u>

m_{e}a_{e}=Eq_{e}

a_{e}=\frac{Eq_{e}}{m_{e}}

a_{e}=\frac{646*1.6*10^{-19}}{9.1*10^{−31}}  

a_{e}=1.14*10^{14}\: m/s^{2}

Now we know that the plate separation is 4.26 cm or 0.0426 m. The travel distance of the proton plus the travel distance of the electron is 0.0426 m.

x_{p}+x_{e}=0.0426

Both of them have an initial speed equal to zero. So we have:

\frac{1}{2}a_{p}t^{2}+\frac{1}{2}a_{e}t^{2}=0.0426

t^{2}(a_{p}+a_{e})=2*0.0426

t^{2}=\frac{2*0.0426}{a_{p}+a_{e}}

t=\sqrt{\frac{2*0.0426}{6.19*10^{10}+1.14*10^{14}}}

t=2.73*10^{-8}\: s    

With this time we can find the distance from the positive plate (x(p)).

x_{p}=\frac{1}{2}a_{p}t^{2}

x_{p}=\frac{1}{2}6.19*10^{10}*(2.73*10^{-8})^{2}

x_{p}=0.0023\: cm

Therefore, the distance from the positive plate at which the two pass each other is 0.0023 cm.

I hope it helps you!

7 0
3 years ago
Pb(NO3)2 + 2KI → PbI2 + 2KNO3 is what kind of reaction?
san4es73 [151]
This reaction would be classified as a double displacement or replacement reaction. This is because the atoms/groups of atoms within each compound are swapped or have broken bonds and reformed with other atoms/groups, where each of them has been replaced with their counter metal or nonmetal in the equation.
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4 years ago
What distinguishes a tornado watch from a tornado warning?
tankabanditka [31]
"Watch" . . . atmospheric conditions exist that could
produce tornados, but none have been seen yet.

"Warning" . . . tornados have formed and have been seen.
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3 years ago
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