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3 years ago

In any problems involving circular motion, which way does the tangential speed vector point?

1 answer:

4 0

In what may be one of the most remarkable coincidences in
all of physical science, the tangential component of circular
motion points along the tangent to the circle at every point.

The object on a circular path is moving in that exact direction
at the instant when it is located at that point in the circle. The
centripetal force ... pointing toward the center of the circle ...
is the force that bends the path of the object away from a straight
line, toward the next point on the circle. If the centripetal force
were to suddenly disappear, the object would continue moving
from that point in a straight line, along the tangent and away from
the circle.

You might be interested in

How much work is required to lift a 10-newton weight from 4.0 meters to 40 meters above the surface of Earth?

kumpel [21]

<h3>Answer : 360J</h3>

s = 40m - 4m = 36m

W = F × s

= 10N × 36m = 360J

<h3>A bit of explanation : </h3>

W = Work (J)

F = Force / weight (N)

s = distance (m)

6 0

3 years ago

A potential difference of 15 V produces a current of 0.60 amps in a piece of copper wire. What is the resistance of the wire?

ale4655 [162]

Answer:

R = 25 Ohms

Explanation:

Given the following data;

Voltage (p.d) = 15 V

Current = 0.6 A

To find the resistance of the wire;

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

$V = IR$

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

$R = \frac {V}{I}$

Substituting into the equation, we have;

$R = \frac {15}{0.6}$

R = 25 Ohms

8 0

3 years ago

If the electric intensity between two parallel plates, placed 1cm apart is 104 NC-1and the direction of the field of this intens

ankoles [38]

The force of a charge in an electric field is:

$\vec{F}_e=q\vec{E}$

In this case we know the electric field is:

$\vec{E}=104\hat{j}$

and that the charge is that of the electron, then we have:

$\begin{gathered} \vec{F}_e=-1.6\times10^{-19}(104\hat{j}) \\ \vec{F}_e=-1.664\times10^{-17}\text{ N} \end{gathered}$

Therefore, the magnitude of the force is

$1.664\times10^{-17}\text{ N}$

and in points down.

The weight of the electron is:

$\begin{gathered} W=1.67\times10^{-27}(9.98) \\ W=1.6366\times10^{-26} \end{gathered}$

Making the quotient between the force we have:

$\frac{1.664\times10^{-17}}{1.6366\times10^{-26}}=1.02\times10^9$

Therefore, the electric force is approximately 1e9 times the weight.

3 0

2 years ago

RESOURCES: EOC V SLO

babunello [35]

Diffraction

Explanation:

The phenomenon through which a beam of light spreads out after leaving the flashlight and the beam grows wider and wider is known as diffraction.

Diffraction is one of the characteristics of waves. It implies the ability of waves to bend round an obstacle. The photons of light are able to bend round obstructions and continue to infinity in space.

The rays grow bigger and bigger due to constructive interference of the waves along the way.

Learn more:

Diffraction brainly.com/question/9971072

Diffraction and reflection brainly.com/question/3183125

#learnwithBrainly

4 0

3 years ago

A water tank holds water to the depth of the 80cm what is the pressure of the water of the tank

Mashutka [201]

Answer:

7976 Pascals significant figure= 7.9*10^3

Explanation:

formula of hpg = height*density*gravitational energy

.80*10*997=7976 pascals

8 0

3 years ago