3 years ago

What do all members of a biological species have in common?

Physics

2 answers:

Vadim26 [7]3 years ago

6 0

A)they can interbreed and produce fertile offsprings

iVinArrow [24]3 years ago

4 0

The answer is A. Hope this helped.

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Radiant energy comes from the _______.

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Answer:

C. Sun

Explanation:

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3 years ago

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The figure below shows two forces A=15 N and B=5 N acting on an object. What is the

alexandr1967 [171]

Answer:

18.03 N

Explanation:

From the fiqure below,

Using parallelogram law of vector

R² = 15²+5²-2×5×15cos(180-60)

R² = 225+25-150cos120°

R² = 250-150(-0.5)

R² = 250+75

R² = 325

R = √325

R = 18.03 N

Hence the resultant force of the object is 18.03 N

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3 years ago

The relationship between frequency wavelength and speed holds for light waves because

tamaranim1 [39]

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all forms of electromagnetic radiation travel at a single speed in a vacuum.

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A quartz crystal vibrates with a frequency of 93621 Hz. What is the period of the crystals motion? T=1/93621 does not give me th

hram777 [196]

Answer:0.0000107s

Explanation:

f=1/T

T=1/f

f=93621 1/s

t=1/93621

T=0.00001068 s

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3 years ago

How much electrical energy is used by the river cooker oven rated 800 W ,230 V is switched on for 30 minutes

mariarad [96]

Answer:

E = 1440 kJ

Explanation:

It is given that,

Power of a cooker oven is 800 W

Voltage at which it is operated is 230 V

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We need to find the electrical energy used by the cooker oven. The product of power and time is equal to the energy consumed. So,

$E=P\times t\\\\E=800\ W\times 1800\ s\\\\E=1440000\ J\\\\\text{or}\\\\E=1440\ kJ$

So, electrical energy of 1440 kJ is consumed by the cooker oven.

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