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3 years ago

What is the wave speed of a wave that has a frequency of 5 hz a wavelength of 10 meters

Biology

2 answers:

ELEN [110]3 years ago

6 0

Answer:

Wave speed= wavelength × frequency . it is measure in meters per seconds.

5 ×10=50 m/s

Explanation:

Wave speed is the distance travel by waves in a given time. It is measured in meter per second.

Wave speed= frequency (Hz) × wavelength.

Wavelength is the distance between two successive crest or trough ,it is measured in meter.

Frequency is the successive occurrence of waves within a fixed place at a fixed time. It is measured in Hertz.

oksian1 [2.3K]3 years ago

4 0

Answer:

Frequency × wavelength

5 × 10 = 50m/s

Explanation:

Wave speed is the distance a wave travels in a given amount of time. Wave speed is related to wavelength and wave frequency by the equation:

Speed = Wavelength x Frequency.

Speed = 5 × 10

= 50m/s

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How is the leaf dependent on the root and the stem

Likurg_2 [28]

Leaf need water and minerals and root helps to take it from soil and passes it through stem. stem also holds leaf in place. hope this helps

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4 years ago

Read 2 more answers

The concentration of cholesterol (C27H46O) in blood is approximately 5.0mM. How many grams of cholesterol are in 315mL of blood

ASHA 777 [7]

The weight of cholesterol is 0.6 g.

Here use the concept of molarity.

<h3>What is molarity?</h3>

The amount of a substance in a specific volume of solution is known as its molarity (M). The moles of a solute per liter of a solution is known as molarity.

Molarity = no. of moles/volume (in L)

<h3>Calculation:</h3>

Given,

Molarity, M = 5.0 mM = 5 × 10⁻³ M

Volume, V = 315 mL = 315 × 10⁻³ L

To calculate,

Weight of cholesterol =?

We know that,

Molecular mass of cholesterol, C₂₇H₄₆O = 386

No. of moles = weight/ molecular mass

The formula is modified as,

Molarity = weight of cholesterol/ (molecular mass) (Volume)

Put the values in the formula,

5 × 10⁻³ = weight of cholesterol/ (386) (315 × 10⁻³)

Weight of cholesterol = 5 × 10⁻³ (386) (315 × 10⁻³)

= 0.6 g

Hence, the weight of cholesterol is 0.6 g.

Learn more about molarity here:

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2 years ago

Glycogen Synthase Kinase:_______.

horrorfan [7]

Answer:

A. Will only phosphorylate glycogen synthase (GS) after GS has been phosphorylated by casein kinase.

Explanation:

Glycogen synthase kinase (GSK) is a type of enzyme capable of phosphorylating serine and threonine residues on the glycogen synthase (GS). The insulin hormone activates the synthesis of glycogen by dephosphorylating GS, but it is a mechanism that depends on the previous phosphorylation of GS by Casein Kinase (CK). GSK is also known to phosphorylate the insulin receptor (IRS), and thus controlling glucose metabolism.

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3 years ago

Selective permeability means that specific molecules or ions can move through the cell membrane by passive transport or active t

Dafna1 [17]

Answer:

With microscope.

Explanation:

Every cell has a selective permeable membrane in which smaller molecules can pass whereas bigger molecules stays outside the cell which can be seen in the cell with the use of microscope because it only occurs inside the cell. The movement of ions or molecules in the cell through a semi permeable membrane is called Osmosis. The movement of ions or molecules sometime needs energy we called it active transport and sometimes it moves without the use of energy is known as passive transport.

6 0

3 years ago

2. If a train is traveling east at 75 kilometers per hour, what is its velocity?

Vedmedyk [2.9K]

75km/hr due east

Explanation:

The velocity of the train will be 75km/hr due east.

Velocity is given as the rate of change of displacement with time.

Velocity = $\frac{displacement}{time taken}$

Velocity is a vector quantity that has both magnitude and directions.
It is different from speed because it has the directional attribute.
From the given data, we know that the train is moving at 75km per hour. This is the speed of the train.
If we incorporate the direction then we have its velocity.

Learn more:

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3 years ago