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nata0808 [166]
3 years ago
13

A bird flew16 km west in 5 hours, then flew 20 km east in 6 hours. what was the birdâs velocity?

Physics
1 answer:
Mademuasel [1]3 years ago
4 0
Solve for Speed: 16+20=36 km in 11 hrs
Answer: speed = 3.27273 kilometers per hour

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

<span>speed = distance/time</span>

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What is the speed of the object at the end of 10 s?
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Nya has a cup of hot tea that she lets cool down for several minutes. What effect does cooling have on the tea?
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Read 2 more answers
Si una sustancia de 52 gramos de masa ,tiene un volumen de 2.5 cm,cual es la dendidad de la masa ?
yaroslaw [1]

Answer:

20.8g/cm³

Explanation:

Esta es la forma en inglés de la pregunta.

"Si una sustancia de 52 gramos de masa tiene un volumen de 2.5 cm³, ¿cuál es la densidad de la masa?"

La densidad se define como la relación entre la masa de una sustancia y su unidad de volumen.

Densidad = Masa / Volumen

Masa dada = 52 gramos

Volumen = 2.5cm³

Densidad = 52 / 2.5

Densidad de la sustancia = 20.8g / cm³

3 0
3 years ago
A 6.50-g sample of copper metal at 25.0°C is heated by the addition of 84.0 J of energy. The final temperature of the copper is
Mekhanik [1.2K]

Answer:

Final temperature of the copper is 59 degrees Celsius

Explanation:

It is given that,

Mass of the sample of copper metal, m = 6.5 g

Initial temperature of the metal, T_i=25^{\circ}\ C=298\ K

Heat generated, Q = 84 J

The specific heat capacity of liquid water is 0.38 J/g-K

Let T_f is the final temperature of the copper. It can be calculated using the definition of specific heat of any substance. It is given by :

Q=mc\Delta T

Q=mc(T_f-T_i)

T_f=\dfrac{Q}{mc}+T_i

T_f=\dfrac{84}{6.5\times 0.38}+298

T_f=332\ K

or

T_f=59^{\circ}C

So, the final temperature of the copper is 59 degrees Celsius. Hence, this is the required solution.

4 0
3 years ago
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