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Mandarinka [93]
3 years ago
5

What is the scientific name given to potato​

Physics
2 answers:
Burka [1]3 years ago
8 0
The answer: Solanum tuberosum
Ivan3 years ago
8 0
Idk idk idk idk idk idk
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If an object is not accelerating what can you determine about the sum of all the forces on the object
Nataliya [291]
The forces are equal to each other, if there is no net force then there is no acceleration taking place. This object could be moving at constant velocity or just be still in place
6 0
3 years ago
Compare a wave that has a period of 0.03 second with a second wave that has a period of 1⁄4 second. Which wave has the greater f
yaroslaw [1]

Answer:

The wave with 0.03 time period have the greater frequency

Explanation:

Given in the question,

Period T_{1} of one wave = 0.03 seconds

Period T_{2} of another wave = 1/4 seconds

We know that

T = 1 / f

So,

f_{1} = 33.3 hz

f_{2} = 4 hz

The wave with 0.03 time period have the greater frequency.

4 0
4 years ago
Read 2 more answers
In straight line motion, if the velocity of an object is changing at a constant rate, then its position is _________ and its acc
Serjik [45]

Answer:

None of the above

It should be position is changing and acceleration is constant.

Explanation:

Since the velocity is changing, this means the object is moving, so the <u>position must also be changing</u>.

Acceleration is the change in velocity in time, if this change of velocity happens at a constant rate, the <u>acceleration must be constant</u> too.

So, for example, if the velocity were to stay the same (not changing), acceleration would be zero, because there wouldn't be a change in time on the velocity.

So in this case the answer sould be position is changing and acceleration is constant. But this isn't in the options so the correct answer is "None of the above"

8 0
3 years ago
Fill in the blanks to complete each statement about mountains.
valina [46]

Range, Belt.

Just got it right on e,,d,,g,,e

8 0
3 years ago
Read 2 more answers
To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance
mart [117]

Answer:

a. 120 W

b. 28.8 N

Explanation:

To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance. Suppose a cyclist is traveling at 15 km/h on level ground. Assume he is using 480 W of metabolic power.

a. Estimate the amount of power he uses for forward motion.

b. How much force must he exert to overcome the force of air resistance?

(a) He is 25% efficient, therefore the cyclist will be expending 25% of his power to drive the bicycle forward

Power = efficiency X metabolic power

= 0.25 X 480

= 120 W

(b)

power if force times the velocity

P = Fv

convert  15 km/h to m/s

v = 15 kmph = 4.166 m/s

F = P/v

= 120/4.166

= 28.8 N

definition of terms

power is the rate at which work is done

force is that which changes a body's state of rest or uniform motion in a straight line

velocity is the change in displacement per unit time.

3 0
4 years ago
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