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3 years ago

PLEASE HELP:::

Physics

2 answers:

vladimir1956 [14]3 years ago

6 0

Newton's first law of motion is often stated as

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Therefore, the answer here is A) Newton's First Law.

Hope this helped ;)

OleMash [197]3 years ago

6 0

A). Newtons first Law

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The type of energy stored in molecular bonds...

wel

Answer:

chemical

Explanation:

it's chemical

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3 years ago

A student fires a cannonball horizontally with a speed of 39m/s from a height of

GREYUIT [131]

Explanation:

The initial horizontal speed is 39 m/s, and the initial vertical speed is 0 m/s.

v₀ₓ = 39 m/s

v₀ᵧ = 0 m/s

In the y direction:

Δy = 73 m

v₀ᵧ = 0 m/s

aᵧ = 9.8 m/s²

Find: t

Δy = v₀ᵧ t + ½ aᵧt²

73 = 0 + ½ (9.8) t²

t = 3.9 s

In the x direction:

v₀ₓ = 39 m/s

aₓ = 0 m/s²

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3 years ago

You're in a car that gets 28 miles per gallon of gas, driving it at a constant speed. If you took the gas from the car tank, and

Nataly [62]

Answer:

The diameter of the hose is 0.326 mm.

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3 years ago

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When oxygen reacts with magnesium thenMgO3 is formed.

Mg +O2----> MgO3

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3 years ago

Suppose that when you move the north pole of a bar magnetic toward a coil it induces a positive current in the coil. The strengt

dolphi86 [110]

Answer:

a) A positive current will be induced in the coil

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Electromagnetic induction is the induction of an electric field on a conductor due to a changing magnetic field flux. The change in the flux can be by moving the magnet relative to the conductor, or by changing the intensity of the magnetic field of the magnet. In the case of this electromagnets, the gradual increase in the the electromagnet's field strength will cause a flux change, which will in turn induce an electric current on the coil.

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3 years ago