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3 years ago

Two particles, each of mass m, are initially at rest very far apart.

Physics

1 answer:

ch4aika [34]3 years ago

8 0

Answer:we can drive the formula for relative speed using the formula of gravitational force.

Explanation:

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One plate goes under another in a _____.

marta [7]

One plate goes under another in the subduction zone. So for the given question, the correct option is option “A”. Subduction rates are not very high. They can be only a few centimeters per year and that is the reason people do not feel the effect. The plates between which the shifting occurs can either be oceanic crust or the continental crust. Mountain formations are necessarily associated with subduction movements of plates. In such cases the movements are huge and can result in earth quakes as well.

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3 years ago

How much force would be required to accelerate a 2kg object at a rate of 15m/ sec?

Anna007 [38]

Im saying a or b but i pick B

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3 years ago

Describe the changes that occur inside a helium balloon as it rises from sea level

zheka24 [161]

Answer:

The balloon expands in the number of particles per cubic centimeter decreases. This happens because as it expands there is a decrease in the density of area. The Dead Sea is a solution that is so dense that you easily float on it.

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3 years ago

Consider a particle with unit charge q, and mass m, in a constant magnetic field B directed along the positive z–axis. The parti

max2010maxim [7]

Answer:

it must be helical motion in which the charge particle will move uniformly along z axis and simultaneously it will move in circular path in xy plane.

Explanation:

Magnetic field is along z axis while velocity is in x-z plane

so we will have

$F = q(\vec v \times \vec B)$

so here we can say

$F = q(u\hat i + w\hat k) \times (B \hat k)$

so we will have

$F = quB(-\hat j)$

so here the net force on the charge is perpendicular to its x directional velocity along - Y direction

So due to this component of motion it will move along a circle while other component of the motion will remain uniform always

So here it is combination of two parts

1) Uniform circular motion

2) Uniform motion

So we can say that it must be helical motion in which the charge particle will move uniformly along z axis and simultaneously it will move in circular path in xy plane.

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3 years ago

A 9.0-V battery is connected to a resistor so that there is a 0.50-A current through the resistor.For how long should the batter

salantis [7]

Answer:

35.6 s

Explanation:

The power through the resistor is given by:

$P=VI$