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3 years ago

An ocean wave has a wavelength of 8m and wave frequency of 4 waves/s. what is the wave speed?

Physics

1 answer:

Mamont248 [21]3 years ago

4 0

Apply the wave equation:
v = wavelength × frequency
v = 8 m × 4 Hz = 32 m/s.

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A car goes 152 miles in 2 hours and 5 minutes. Calculate the car’s speed in units of m/s. 1 mi = 1600 m.

Bogdan [553]

Answer:

The speed of the car is 32.4m/s

Explanation:

1mi = 1600m

152mi = 243 200m

2hr 5min = 7200s + 300s

= 7500s

speed = distance/time

= 243200/7500

= 32.4m/s (3s.f)

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3 years ago

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a plane being propelled due east is actually moving at 225mph an angle of 40 degrees north of east, how fast is the crosswind th

Marianna [84]

Answer:

144.63 mph

Explanation:

225 sin (40)

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3 years ago

What does a negative acceleration mean if the object has positive velocity?

Sedaia [141]

Answer:

An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion . If velocity and acceleration have opposite signs, you slow down. Negative velocity = You move backwards. Negative acceleration - You slow down or you go faster in the backwards direction

Explanation:

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2 years ago

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Which statements describe solstices? Select 3 correct choices. They occur when the Sun reaches its highest or lowest point in th

Contact [7]

The statements that best describe solstices include:

A. They occur when the Sun reaches its highest or lowest point in the sky.

B. They affect the amount of sunlight in the Northern Hemisphere in June.

D. They influence the cycling of different seasons based on the Sun's height in the sky.

A solstice can be defined as a phenomenon in which the Sun reaches its maximum or minimum declination relative to the celestial equator on the celestial sphere, thereby, producing either the least amount of daylight time within a day or the most amount of daylight time. Also, it occurs twice in a year between June 20-22 and December 21-23.

Traditionally, solstice marks the beginning (start) of seasons such as summer and winter depending on the hemisphere.

Hence, the statements that best describe solstices include:

Solstices occur when the Sun reaches its highest (maximum) or lowest (minimum) point in the sky.

Solstices affect the amount of daylight time (sunlight) in the Northern Hemisphere in June.

Solstices influence the cycling of different seasons depending on the Sun's height in the sky.

Read more on solstices here: brainly.com/question/5133631

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2 years ago

How do I convert 498.82 cg to mg

mezya [45]

Answer:
498.82 cg is equivalent to 4988.2 mg

Explanation:
cg stands form centigrams
mg stands for milligrams

From the standards of conversion, to convert from centi to milli, we multiply the amount ny 10

This means that:
1 centigram = 10 milligram

To convert 498.82 cg to mg, all we have to do is cross multiplication as follows:
1 cg ..................> 10 mg
498.82 cg .........> ?? mg

498.82 cg = $\frac{498.82*10}{1}$ = 4988.2 mg

Hope this helps :)

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3 years ago

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