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masha68 [24]
3 years ago
13

A cyclist travels 20km in 4hrs.What speed did the cyclist cycle at?​

Physics
2 answers:
Margaret [11]3 years ago
5 0
Distance =20km

Time =4hr

Hence,speed = 20 divide by 4
That is 5 km/hr
Tanya [424]3 years ago
3 0

Answer: 5 km/hr

Explanation:

speed= distance divided by time

20/4

= 5 km/hr

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Nataly [62]

Answer:

Add the two speeds together.

Then, divide the sum by two. This will give you the average speed for the entire trip. So, if Ben traveled 40 mph for 2 hours, then 60 mph for another 2 hours, his average speed is 50 mph.

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3 years ago
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n200080 [17]

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3 years ago
1. Calcular la masa de mercurio que pasó de 30 °C hasta 120 °C y absorbió 4400 cal. Calor específico del
timofeeve [1]

Answer:

Masa, m = 0.088 kg

Explanation:

Given the following data;

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Temperatura final = 120°C

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Calor absorbido, Q = 4400 cal.

Para encontrar la masa;

La capacidad calorífica viene dada por la fórmula;

Q = mct

Dónde;

Q representa la capacidad calorífica o la cantidad de calor.

m representa la masa de un objeto.

c representa la capacidad calorífica específica del agua.

dt representa el cambio de temperatura.

dt = T2 - T1

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7 0
2 years ago
Find the noise level of a sound having an intensity of 1.5x10^-14W/m^2 given I0=10^12 W/m2
Llana [10]

Answer:

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So option (b) will be correct answer

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3 years ago
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Scrat [10]

Answer:

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Explanation:

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3 years ago
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