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3 years ago

the velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

Physics

2 answers:

kirill [66]3 years ago

8 0

East.
momentum = mass x velocity
the direction of the momentum is the same as that of velocity.

7nadin3 [17]3 years ago

7 0

Answer: to east.

Explanation: Momentum is the "amount of movement" and can be written as:

P = m*v

where P is momentum, m is the mass of an object moving and v is the velocity of the object.

As you may know, the velocity is a vector and the mass is a scalar, so the momentum must be also a vector, that has the same direction that the vector of velocity, so if the velocity of the rock points to the east, also does the momentum.

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3 years ago

Two long, straight wires are separated by 0.120 m. The wires carry currents of 11 A in opposite directions, as the drawing indic

rewona [7]

Answer:

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Explanation:

The flow of an electric current in a straight wire induces magnetic field around the wire. When current is flowing through two wires in the same direction, a force of attraction exists between the wires. But if the current flows in opposite directions, the force of repulsion is felt by the wires.

In the given question, the direction of flow of current through the wires is opposite, thus both wires applies the same field on each other. The result to repulsion between them.

The magnetic field (B) between the given wires can be determined by:

B = $\frac{U_{o}I }{2\pi r}$

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But, I = 11 A, r = 0.12 m and $U_{0}$ = 4 $\pi$ x $10^{-7}$ Tm/A

So that;

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3 years ago

During a certain nuclear reaction the total mass of the products is less than the total mass of reactants what happened to the m

miss Akunina [59]

Answer: it turns into energy

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