Electromagnetic Waves: This type of wave requires no medium (substance) to travel through.
Explanation:
2. Aerobic exercise. ...
Strength building. ...
Balance Training. ...
Endurance. ...
Flexibility. ...
Moderate intensity exercise. ...
Vigorous exercise.
3.Brisk walking.
Running.
Jogging
Bear crawls.
Swimming.
Water aerobics.
Cycling/bicycling.
4. Running or Jogging. ...
Outdoor Cycling. ...
Walking.
5. The type of exercise to build muscle is strength training, although cardiovascular activity can also provide benefits.
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Answer:
The frequency would double.
Explanation:
Given:
Speed of wave (v) = constant.
Frequency of wave initially (f₁) = 2 Hz
Initial wavelength of the wave (λ₁) = 1 m
Final wavelength of the wave (λ₂) = 0.5 m
Final frequency of the wave (f₂) = ?
We know that the product of wavelength and frequency of the wave is equal to the speed of the wave.
Therefore, framing in equation form, we have:
Wavelength × Frequency = Speed
It is given that speed of the wave remains the same. So, the product must always be a constant.
Therefore,
Now, plug in the given values and solve for 'f₂'. This gives,
Therefore, the final frequency is 4 Hz which is double of the initial frequency.
f₂ = 2f₁ = 2 × 2 = 4 Hz
So, the second option is correct.
A. Energy is transmitted by all waves.
Answer:
3.3m/s
Explanation:
You first get the total time (80 + 70 = 150s).
Then you would find the displacement of the truck. To do that you would do component method (vector addition), so since its a right triangle (North and East), displacement is 400^2 + 300^2 = d^2.
d= 500m.
So now that you have displacement and time, you can find the velocity:
v=d/t
v=500/150
v=3.3
