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3 years ago

Un vaso de agua fría está a 8 °c ¿ cuanto medirá en °f y °k? *

1 answer:

8 0

Esta calculadora de calor específica es una herramienta que determina la capacidad de calor de una muestra calentada o refrigerada. El calor específico es la cantidad de energía térmica que necesita suministrar a una muestra que pesa 1 kg para aumentar su temperatura en 1 K. Siga leyendo para aprender a aplicar la fórmula de capacidad de calor correctamente para obtener un resultado válido.

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A 4.5 kg bowling ball rolls down a 500m hill. How much potential energy does it lose?

lions [1.4K]

Answer:

22050 J

Explanation:

Given Mass of the ball, m = 4.5 Kg

Height, h =500 m

Acceleration due to gravity, $g= 9.8m/s^{2}$

To calculate the potential energy we use formula,

$PE = mgh$

Substituting the given values, we get

PE = 4.5× 9.8×500

=22050 J

8 0

3 years ago

Why dont we put (-ve) sign when calculating charge in electrostatics ?

Levart [38]

Answer:

The negative sign represents the flow of charge in an opposite direction relative to point of action.

5 0

3 years ago

jake drags a sled of mass 10 kg across the snow. the sled is attached to a rope that he pulls with a force of 30 n at an angle o

bagirrra123 [75]

Answer:

The normal force is 85,42 N

Explanation:

There is no friction force, therefore there is no relationship between the normal force and the friction.

We can find the normal force using a free body diagram and check the forces that are acting on the sled. The total forces are equal to 0 because there is no movement in the y-axis. The movement exists only on the x-axis.

7 0

3 years ago

Read 2 more answers

What are the seasonal changes in the weasel in florida and the weasel in wyoming

AlekseyPX

Winter weasels, also called ermines or short-tailed weasels, have coats that turn from light brown to white in the winter. The color change begins at their stomachs and works its way outward, occurring in both spring and fall. Other species, like the long-tailed weasel, may turn at least partially white as well.

The length of daylight, not temperature, prompts the color change. As a result, weasels in winter may be stark white against a brown landscape before snow starts to fall. During warmer winters, this makes them easy prey for larger predators such as foxes, martens, and badgers.

7 0

3 years ago

How to represent milligram in kilogram by standard formula?

Anettt [7]

Answer:

0.000001 kg

Explanation:

because 1 kg equal 1,000,000 milligrams

we take $\frac{1}{1,000,000}$ which equals 0.000001 kg

4 0

3 years ago