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2 years ago

Billy ran 800m in 240s. What is his speed? Round to two decimal places Your answer

Physics

2 answers:

Serjik [45]2 years ago

8 0

Answer:

Speed=3.33m/s

Explanation:

$Distance(d)=800m\\Time(t)=240sec\\Now,\\Speed=\frac{Distance}{Time} \\\\Speed=\frac{800}{240} \\\\Speed=3.33m/s$

Ilia_Sergeevich [38]2 years ago

4 0

Answer:

Speed = 3.33 m/s

Explanation:

Formula:

Speed = distance / time

Here distance is 800 metres and time is 240 seconds

Using the formula:

Speed = 800 / 240

Speed = 3.33 m/s

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Why is it important for body cell to have twice and many chromosomes as sex cells?

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Answer:

Why sex cells only need half the number of chromosomes compared to other cells in the body? As gametes are produced, the number of chromosomes must be reduced by half. Why? The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells.

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3 years ago

We start with 5.00 moles of an ideal monatomic gas with an initial temperature of 128 ∘C. The gas expands and, in the process, a

o-na [289]

Answer:

The final temperature of the gas is 114.53°C.

Explanation:

Firstly, we calculate the change in internal energy, ΔU from the first law of thermodynamics:

ΔU=Q - W

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Secondly, from the ideal gas law, we calculate the final temperature of the gas, using the change in internal energy:

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Then we make the final temperature, T₂, subject of the formula:

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3 years ago

A 52.5-turn circular coil of radius 5.35 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0

krek1111 [17]

Answer:

5.43 x 10^-3 Nm

Explanation:

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3 years ago

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Jobisdone [24]

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3 years ago

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