All categories

3 years ago

Define uniform and nonuniform motion. Write one example for each.

Physics

1 answer:

lys-0071 [83]3 years ago

6 0

Answer:

Uniform motion : When a body covers equal distance in equal interval of time irrespective of the direction throughout it's motion

non-uniform motion : When it covers a unequal distance in equal interval of time irrespective of the direction throughout it's motion.

Example of Uniform motion :

The movement of the hands of the clock. (They move equal distances in equal interval of time.)

Example of non- uniform motion :

An athlete running in a race.

You might be interested in

A 30 ohm resistor and a 20 ohm resistor are

Reptile [31]

The current that would pass through the 30 ohms resistor is 2 A.

<h3>What is electric current?</h3>

Electric current is the rate of flow of electric charge round a conductor.

To calculate the electric current that would pass through the 30 ohms resistor, we use the formula below

Formula:

I = V/Rt........... Equation 1

Where:

I = Electric current passing through the 30 ohms resistor
V = Voltage
Rt = Total or effective resistance of the resistors.

From the question,

Given:

V = 100 volts
Rt = (30+20) ohms (since both resistors are connected in series)

Rt = 50 ohms

Substitute these values into equation 1

I = 100/50
I = 2 A

Hence, The current that would pass through the 30 ohms resistor is 2 A.

Learn more about electric current here: brainly.com/question/1100341

8 0

3 years ago

according to newton's law of universal gravitation, in which of the following situations does the gravitational attraction betwe

Alex17521 [72]

Explanation:

The force acting between two masses is given by :

$F=G\dfrac{m_1m_2}{d^2}$ ........(1)

Where

G is the universal gravitational constant

$m_1\ and\ m_2$ are masses

d is the distance between two masses

It is clear from equation (1) that the gravitational attraction between the bodies always increases if the masses of bodies increases and when the separation between masses decreases.

So, the correct answer is "the masses increase, and the distance between the centers of mass decreases". This is because the force of gravitation is directly proportional to the masses and inversely proportional to the separation.

4 0

3 years ago

The maximum current output of a 60 ω circuit is 11 A. What is the root mean square voltage of the circuit?

goldenfox [79]

Answer:

660V

Explanation:

V=IR

V=?, I=11A,R=60w

V=60 ×11

=660V

8 0

3 years ago

Um chuveiro C e um forno de micro-ondas M são ligados, como não há circuito a seguir.

uysha [10]

Responder:

50A

Explicación:

Dado que el Um chuveiro y el microondas están conectados en paralelo, el mismo voltaje fluirá a través de ellos.

La potencia total consumida por ambos aparatos = 4800W + 1200W

La potencia total consumida por ambos aparatos = 6000W

Para obtener el I actual, usaremos la fórmula;

P = IV

6000 = 120I

Yo = 6000/120

Yo = 50 A

Por lo tanto, la medición de corriente del amperímetro ideal A será 50A

3 0

3 years ago

An object is thrown with a horizontal velocity of 20 m/s from a cliff that is 125 m above level ground. If air resistance is neg

Serjik [45]

Given that,

Horizontal velocity of the object, v = 20 m/s

Height of the cliff, h = 125 m

We need to find the time that it takes the object to fall to the ground from the cliff is most nearly. It can be calculated using second equation of motion. Let us consider that the initial speed of the object is 0. So,

$h=ut+\dfrac{1}{2}at^2$

Here, a = g and u = 0

$h=\dfrac{1}{2}at^2\\\\t=\sqrt{\dfrac{2h}{g}} \\\\t=\sqrt{\dfrac{2\times 125}{10}} \\\\t=5\ s$

So, the object will take 5 seconds to fall to the ground from the cliff.

5 0

3 years ago