Ask question

Ask question

All categories

3 years ago

6

Se necesita fuerza continua para el movimiento continuo?

1 answer:

zhenek [66]3 years ago

8 0

¿Se necesita fuerza continua para un movimiento continuo? No exactamente, ya que la fuerza que se aplica para mantener un objeto en movimiento solo se usa para que la fuerza de fricción pueda ser contrarrestada. Si un astronauta arrojara, digamos, una computadora portátil al espacio durante una caminata espacial (por qué arrojar una tableta perfectamente buena en el esquema interminable del cosmos, no lo sé), viajaría con una velocidad constante para siempre, a menos que golpea algo También podría reemplazar la computadora portátil con Voyager 2, que se mantuvo en movimiento y ahora está fuera de nuestro sistema solar. Esto se debe a que el espacio está mayormente vacío y no habría ninguna fuerza de fricción que actúe sobre esa roca. A menos que sea golpeado por un asteriodo o algo así, lo que haría una pregunta física diferente.

Espero que esto ayude, ¡TENGA UN DÍA BENDITO Y MARAVILLOSO! ¡Y un gran fin de semana de Superbowl! :-)

- Cutiepatutie ☺❀❤

You might be interested in

A car battery with a 12 V emf and an internal resistance of 0.037 Ω is being charged with a current of 45 A. Note that in this p

matrenka [14]

Answer:

Part a)

$V = 13.665 V$

Part b)

$P = 74.9 Watt$

Part c)

$P = 540 watt$

Part d)

$P_r = 0.878$

Explanation:

Part a)

As we know that the during the charging process of the battery the terminal voltage of the cell is given as

$V = E + iR$

$V = 12 + (0.037)(45)$

$V = 13.665 V$

Part b)

Thermal energy dissipated in the battery is due to its internal resistance

so it is given as

$P = i^2 R$

here we have

$P = 45^2 (0.037)$

$P = 74.9 Watt$

Part c)

rate of energy conversion in the in the battery is given as

$P = E. i$

$P = 12(45)$

$P = 540 watt$

Part d)

percentage of the power conversion is given as

$Pr = \frac{P_{out}}{P_{total}}$

$Pr = \frac{540}{540 + 74.9}$

$P_r = 0.878$

6 0

3 years ago

In a parallel circuit, each resistor has:

Fynjy0 [20]

Answer:

C

Explanation:

7 0

3 years ago

Please help! Average speed. Show work!

KiRa [710]

Answer:

3.78 m/s

Explanation:

Recall that the formula for average speed is given by

Speed = Distance ÷ Time taken

Where,

Speed = we are asked to find this

Distance = given as 340m

Time taken = 1.5 min = 1.5 x 60 = 90 seconds

Substituting the values into the equation:

Speed = Distance ÷ Time taken

= 340 meters ÷ 90 seconds

= 3.777777 m/s

= 3.78 m/s (round to nearest hundredth)

3 0

2 years ago

Read 2 more answers

What are 3 ways you can save energy on earth day or any day?

Ber [7]

By unplugging unused devices, by turning off any unused lights, and by switching your lightbulbs to something more energy efficient.

8 0

3 years ago

a. 2.00kg object is subject to three force that gives acceleration a =8m/s^2 i +6m/s j if two of three forces are f1 =(30.0N)+(1

tekilochka [14]

By Newton's second law, the net force on the object is

∑ <em>F</em> = <em>m</em> <em>a</em>

∑ <em>F</em> = (2.00 kg) (8 <em>i</em> + 6 <em>j</em> ) m/s^2 = (16.0 <em>i</em> + 12.0 <em>j</em> ) N

Let <em>f</em> be the unknown force. Then

∑ <em>F</em> = (30.0 <em>i</em> + 16 <em>j</em> ) N + (-12.0 <em>i</em> + 8.0 <em>j</em> ) N + <em>f</em>

=> <em>f</em> = (-2.0 <em>i</em> - 12.0 <em>j</em> ) N

8 0

3 years ago