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adoni [48]
3 years ago
6

Which statement best describes how waves carry energy?

Physics
2 answers:
Ugo [173]3 years ago
7 0

Answer:

Energy moves from one place to another through the wave. answer A

Dennis_Churaev [7]3 years ago
3 0

Answer:

A

Explanation:

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Jack is a good runner. He is due to run the physical fitness test. According to social facilitation theory, jack will run faster
sleet_krkn [62]

Answer:Jack will run faster when he feels like it!

Explanation:

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4 years ago
A power lifter performs a dead lift, raising a barbell with a mass of 305 kg to a height of 0.42 m above the ground, giving the
Ann [662]

Answer:

Explanation:

Before it hits the ground:

The initial potential energy = the final potential energy + the kinetic energy

mgH = mgh + 1/2 mv²

gH = gh + 1/2 v²

v = √(2g (H - h))

v = √(2 * 9.81 m/s² * (0.42 m - 0.21 m))

v ≈ 2.0 m/s

When it hits the ground:

Initial potential energy = final kinetic energy

mgH = 1/2 mv²

v = √(2gH)

v = √(2 * 9.81 m/s² * 0.42 m)

v ≈ 2.9 m/s

Using a kinematic equation to check our answer:

v² = v₀² + 2a(x - x₀)

v² = (0 m/s)² + 2(9.8 m/s²)(0.42 m)

v ≈ 2.9 m/s

3 0
3 years ago
What is the average salary for the following careers?
Dennis_Churaev [7]
1. $85047
2. $113,080
3. $ 75,820
4. $41595
6 0
3 years ago
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What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2
Nimfa-mama [501]

<span>I believe this question has additional detail which stated that during the 1st half, his speed was 2.01 m/s. From this we can calculate his speed during the second half, v2, using the formula:</span>

v_ave = (v1 + v2) / 2

2.05 m/s = (2.01 m/s + v2) / 2

<span>v2 = 2.09 m/s</span>

4 0
3 years ago
A car travels 70 km in two hours 104 km in the next 1.5 hours and then 79 km in two hours before reaching its destination what w
stiks02 [169]

Average speed = (total distance) / (total time)

Total distance = (70km + 104km + 79km) = 253 km

Total time = (2hr + 1.5hr + 2hr) = 5.5 hrs

Average speed = (253 km) / (5.5 hrs)

<em>Average speed = 46 km/hr</em>

4 0
4 years ago
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