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3 years ago

If the different parts of an electric circuit are found on separate branches of the circuit, the circuit is called a (an)

Physics

1 answer:

Vladimir [108]3 years ago

4 0

Answer:

C parallel circuit

Explanation:

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the density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas

statuscvo [17]

The type of relationship between atmospheric density and altitude is therefore inverse relationship. This means an increase in either will decrease the other factor. Density is mass per unit volume, it is difficult to calculate with only altitude 1,291 kilometers given. Else, we could also use temperature and pressure to solve density but they are not provided.

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3 years ago

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Andrea and the other members of the tennis team are practicing hitting tennis balls. If two people hit identical balls at the sa

Pachacha [2.7K]

If two people hit identical tennis balls at the same time, the ball that has the most kinetic energy is the ball that moves at the fastest speed.

<u>Explanation:</u>

The energy possessed by an object by virtue of its motion is called its kinetic energy indicating that only moving objects have kinetic energy. The kinetic energy of an object depends on its speed and mass.

It is given by the expression

$K=1/2 mv^2$

where m denotes the mass of the object and v denotes its velocity.

since kinetic energy is directly proportional to the square of the velocity, the kinetic energy of an object increases with its velocity.

Hence an object that moves at the fastest speed will have the most kinetic energy.

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3 years ago

Sequence eye light enters the eye

Burka [1]

Answer:

Well it is the courtnes

Explanation:

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3 years ago

0.160-kg hockey puck is moving on an icy, frictionless, horizontal surface. At t 0, the puck is moving to the right at 3.00 m/s.

balandron [24]

Answer: $(a)10.812\ m/s\ (b)\ 0.75\ m/s\ \text{left}$

Explanation:

Given

Mass of hockey puck $m=0.160\ kg$

Initial velocity of hockey puck is $u=3\ m/s$

First a horizontal force of $25\ N$ is applied to the right for $0.05\ s$

acceleration associated with it is

$\Rightarrow a=\dfrac{25}{0.160}\\\\\Rightarrow a=156.5\ m/s^2$

Using equation of motion i.e.

$\Rightarrow v=u+at\\\Rightarrow v=3+156.25\times 0.05\\\Rightarrow v=3+7.812\\\Rightarrow v=10.812\ m/s$

(b) When a force of $12\ N$ is applied for 0.05s

Using equation of motion i.e.

$\Rightarrow v=3-\dfrac{12}{0.160}\times 0.05\\\\\Rightarrow v=3-75\times 0.05\\\Rightarrow v=3-3.75\\\Rightarrow v=-0.75\ m/s\\\Rightarrow v=0.75\ \text{towards left}$

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3 years ago

How does an atom of rubidium-85 become a rubidium ion with a +1 charge?

Nastasia [14]

Answer:

C. The atom loses 1 electron to have a total of 36.

Explanation:

Cations have a positive charge. Cations lose electrons.

The number of electrons in a Rubidium atom is 37. If the atom loses 1 electron, then it has 36 left.

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4 years ago