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Nataly [62]
3 years ago
12

What are the five practices in scientific inquiry

Physics
1 answer:
nata0808 [166]3 years ago
5 0
1. Learners are engaged by scientifically oriented questions.
2. Learners give priority to evidence, allowing them to develop and
evaluate explanations that address scientifically-oriented questions.
3. earners formulate explanations form evidence to address scientifically
oriented question
4. Learners evaluate their explanations in light of alternative explanations,
particularly those reflecting scientific understanding.
5. Learners communicate and justify their proposed explanations.
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A 10 Ω resistor is connected to a 120-V ac power supply. What is the peak current through the resistor?
11111nata11111 [884]

Answer:

Peak current = 16.9 A

Explanation:

Given that

RMS voltage = 120 Volts

V_{rms} = 120 V

AC is connected across resistance

R = 10 ohm

now by ohm's law

V = i R

120 = i (10)

i_{rms} = \frac{120}{10} = 12 A

now peak value of current will be given as

i_{peak} = \sqrt{2} i_{rms}

i_{peak} = \sqrt2 (12) = 16.9 A

8 0
3 years ago
How long will it take to travel 546 km at 110 km/hr (answer in hours)
Andre45 [30]
(60 * 546) / 110 = 297

297 hrs.
3 0
3 years ago
A second basemen tosses the ball to the first basemen, who catches it at the same level from which it was thrown. The throw is m
Radda [10]

Answer:

Explanation:

Given

Initial speed of ball u=19\ m/s

Launch angle \theta =34.5^{\circ}

As there is no acceleration in horizontal direction therefore there is no change in velocity

thus horizontal velocity remains unchanged

u_x=u\cos \theta

u_x=19\cdot \cos 34.5

u_x=15.65\ m/s

Time of flight of projectile is

T=\frac{2u\sin \theta }{g}

T=\frac{2\times 19\times \sin (34.5)}{9.8}

T=2.196\ s

Thus time for which it is in air is 2.12 s                        

4 0
3 years ago
Read 2 more answers
What is the main cause of the seasons
irinina [24]
The main cause of the seasons is earths orbit since each time were in a new season the planet is facing the earth a different way which causes winter etc..
3 0
3 years ago
A complete digestive system is found in bears.
GrogVix [38]
Hi! I believe the correct answer is A. Do you have any other questions I can help you with? I would be glad too.

- Amber 
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4 0
3 years ago
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