2 years ago

A cup has a mass of 0.0650 kg and a

Physics

1 answer:

Roman55 [17]2 years ago

5 0

Answer: 0.185

Explanation:

Trust bro

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"As you sit in a fishing boat, you notice that 12 waves pass the boat every 45 s. If the distance from one crest to the next is

Alchen [17]

Answer:

2.4564 m/s

Explanation:

Number of waves in 1 second

$\dfrac{12}{45}=0.267\ Hz$

This is the frequency 0.267 Hz

The distance mentioned in the question is the

$\lambda$ = Wavelength = 9.2 m

The speed of wave is

$v=f\lambda$

$\Rightarrow v=0.267\times 9.2$

$\Rightarrow v=2.4564\ m/s$

The speed of the wave is 2.4564 m/s

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3 years ago

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Irina-Kira [14]

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3 years ago

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A student walks a distance of 3 km in 20 minutes calculate his average speed

serg [7]

Answer:

His average speed is 0.15 kilometer per minute or 2.5 meters per second.

Explanation:

average speed = distance/time

x = 3 km/20 minutes

x = 0.15

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3 years ago

A delivery truck leaves a warehouse and travels 2.60 km north. The truck makes a left turn and travels 1.25 km west before makin

yulyashka [42]

Answer:

4.19 km and 107.35 degrees north of east

Explanation:

So in the end, the truck is (2.6 + 1.4 = 4km) north and 1.25 km west from the warehouse. We can use the Pythagorean formula to calculate the magnitude and direction α of the truck displacement from the warehouse:

$s = \sqrt{s_n^2 + s_w^2} = \sqrt{4^2 + 1.25^2} = \sqrt{16 + 1.5625} = \sqrt{17.5625} = 4.19$ km

$tan\alpha = \frac{s_n}{s_w} = \frac{4}{1.25} = 3.2$

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3 years ago