2 years ago

The image of an object formed by plane mirror is

Physics

1 answer:

m_a_m_a [10]2 years ago

8 0

Answer of your question is in this photo

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The product of an object’s mass and velocity

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momentum is the product of mass and velocity

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3 years ago

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Calculate the mass of a gas with a density of 0.0065 g/cm3 and volume of 260 cm3

Anuta_ua [19.1K]

$\sf Density = \frac{mass}{volume }\\\\0.0065 = \frac{mass}{260} \\\\{\boxed {\sf {mass =1.69 ~grams}}$

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3 years ago

A constant 10.0-N horizontal force is applied to a 20.0-kg cart at rest on a level floor. If friction is negligible, what is the

Otrada [13]

Answer:

2.83 m/s

Explanation:

Given:

Mass of the cart (m) = 20.0 kg

Initial velocity of the cart (u) = 0 m/s

Final velocity (v) = ? m/s

Displacement of the cart (S) = 8.0 m

Horizontal force acting on the cart (F) = 10.0 N

Surface is frictionless. So, only horizontal force is the force acting on the cart.

Now, as per work-energy theorem, the work done by the net force acting on a body is equal to the change in the kinetic energy of the body.

Here, the work done by the horizontal force is given as:

$W_{net}=FS=(10\ N)(8.0\ m)=80\ Nm$

The change in kinetic energy is given as:

$\Delta K=\frac{1}{2}m(v^2-u^2)\\\\\Delta K=\frac{1}{2}(20.0\ kg)(v^2-0)\\\\\Delta K=10v^2$

Now, from work-energy theorem:

$\Delta K=W_{net}\\\\10v^2=80\\\\v^2=\frac{80}{10}\\\\v=\sqrt{8}=2.83\ m/s$

Therefore, the speed of the cart when it has been pushed 8.0 m is 2.83 m/s.

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3 years ago

Why is it important to know the location of active and inactive faults in our country?

Andrew [12]

Answer:

I hope this helps.

Explanation:

It's important to know the location of an active fault in order to determine the magnitude of the expected earthquake. There is a chance than an inactive fault can become active again. It's important that we take the locations into account in order to be prepared and ready for if it occurs.

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3 years ago

Correctly round the following number to the ten thousandths place<br> 3.68274

Sergeu [11.5K]

The answer to this question is 3.69

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3 years ago

The image of an object formed by plane mirror is​

The image of an object formed by plane mirror is