Which of the items has the least inertia while at rest? A. penny. B. airplane. C. frog. D. dog.

Answers

Answer 1

Answer:

Answer:

A penny

Explanation:

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A boat sails along the shore. To an observer, the boat appears to move at a speed of 11 m/s, and a man on the boat walking forward appears to have a speed of 12.4 m/s. How long does it take the man to move 6 m relative to the boat?

Answers

You first subtract the speed at which the man is moving (11 m/s) from the rate the boat is moving (12.4 m/s). Which equals 1.4, then divide it by 6 meters, as the man is moving relative to the boat.

It therefore equals 4.29 s

Answer:

4.29 s

Explanation:

Apex

Maria is camping when she starts to smell smoke. She turns on her radio and hears that a forest fire is heading her way. How can Maria's organ systems interact to help keep her safe? Include at least five organ systems in your response.

Answers

The hormonal, cardiovascular, central nervous and respiratory systems are all involved in this response.

The body is equipped to respond to emergency situations through the fight and flight hormones secreted by the adrenal gland. This chemical messengers send a message to the brain which now causes reactions such as increased pumping of blood by the heart and a faster breathing rate by the lungs.

Hence, the hormonal, cardiovascular, central nervous and respiratory systems are all involved in this response.

Learn more about hormonal system: brainly.com/question/5333884

When two point charges are a distance d apart, the magnitude of the electrostatic force between them is F. If the distance between the point charges is increased to 3d, the magnitude of the electrostatic force between the two charges will be

Answers

Answer:

The magnitude of the electrostatic force decreases by a factor 9

Explanation:

The electrostatic force between two charges is given by:

$F=k(q_1 q_2)/(d^2)$

where

k is the Coulomb's constant

q1 and q2 are the two charges

d is the distance between the two charges

We see that the magnitude of the force is inversely proportional to the square of the distance. If the distance is increased to 3d: d' = 3d, the new electrostatic force would be:

$F'=k(q_1 q_2)/((d')^2)=k(q_1 q_2)/((3d)^2)=(1)/(9) k(q_1 q_2)/(d^2)=(F)/(9)$

So, the electrostatic force decreases by a factor 9.

Decreased by a factor of 9

What is the final speed of a lion initially running at a speed of 30 m/s, if it accelerates ata rate of 3 m/s3 for 5 seconds?

Answers

The final speed of a lion running 30 m/s accelerates at a rate of 3 m/s3 for 5 seconds it’s 3.2

A pond is a small body of water that is too shallow for sunlight to permeate, and a lake is a large body of water that is deep enough for sunlight to permeate

Answers

False, the technical distinction between a pond and a lake has not been universally standardized.

FALSE

Hope this helps! :)

How do you connect 1 ohm, 2 ohm and 3 ohm resistors to getan equivalent resistance of 5/6 ohm.

Answers

You (or your homework sheet) may be fishing for the answer "connect
the 3 resistors in parallel", but that does not do the job.

When those 3 resistors are connected in parallel, their combined resistance
is 6/11 ohm.

If the 2 and the 3 alone are in parallel, their combination is 6/5 ohms, and
adding the 1 ohm in series makes 2.2 ohms.

If the 1 and the 2 alone are in parallel, their combination is 2/3 , and adding
the 3 in series makes 3 and 2/3 .

If the 1 and the 3 alone are in parallel, their combination is 3/4 , and adding
the 2 in series makes 2.75 .

There is nothing you can do with those 3 resistors, or with any 2 of them,
or with any 1 of them, that will give you 5/6 ohm .

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Suppose you had a feather, an orange, and a watermelon. Which of the following describes how quickly each of the objects will fall without air resistance, relative to the other two?a. All three objects will fall at the same rate. b. The watermelon will fall faster than the other two. c. The orange will fall the fastest, followed by the watermelon and then the feather. d. The feather will fall faster than the orange, which will fall faster than the watermelon.

An oxygen atom picks up two additional, free floating electrons. Is the charge of the newly formed oxygen ion positive, negative or neutral?

A stone is dropped from a bridge and hits the pavement below in two seconds. What is the velocity of the stone when it hits the pavement?A. 0.20 m/s B. 19.6 m/s C. 4.9 m/s D. 9.8 m/s

A radio station transmits waves at a frequency of 120MHz an a speed of 300 million m/s. Calculate the wavelength.