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3 years ago

Please answer this I'm sorry for annoying you

Physics

1 answer:

GalinKa [24]3 years ago

4 0

The resultant force points between up and right.

So if we're going to resolve it into two separate forces, they have to provide some force up and some force to the right.

The only pair of forces among the choices that does that is choice-A .

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For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?

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Answer:

B.14 your welcome!

Explanation:

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3 years ago

At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.5 m/s2. At the same insta

Licemer1 [7]

Answer:

6.96 s

Explanation:

Given:

u = initial speed of the automobile = 0 m/s

a = constant acceleration of the automobile = $2.5\ m/s^2$
v = constant speed of the truck = 8.7 m/s

Assume:

t = time instant at which the automobile overtakes the truck.

At the moment the automobile and the truck both meat each other the distance travel by both vehicles must be the same.

$\therefore \textrm{Distance traveled by the automobile }=\textrm{Distance traveled by the truck}\\\Rightarrow ut+\dfrac{1}{2}at^2=vt\\\Rightarrow (0)t+\dfrac{1}{2}\times 2.5\times t^2=8.7t\\\Rightarrow 1.25t^2=8.7t\\\Rightarrow 1.25t^2-8.7t=0\\\Rightarrow t(1.25t-8.7)=0\\\Rightarrow t = 0\,\,\,or\,\,\, t = \dfrac{8.7}{1.25}\\\Rightarrow t = 0\,\,\,or\,\,\, t = 6.96\\$

Since t = 0 s is the initial condition. So, they both meet again at t = 6.96 s such that the automobile overtakes the truck.

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3 years ago

For an object to be in static equilibrium, the net force must be equal to zero and and The center of gravity must be above the s

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Answer:

The normal force must equal the weight.

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Look at the graph. If the price of peaches increases, what can be expected?

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At which position is the LOWEST potential energy?

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The answer is position 3, because it is at its lowest point.

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