Answer:
There is no essential difference between microwaves and blue light other than a difference in frequency and wavelength.
Explanation:
Answer:
Explanation:
Carbon dioxide controls the amount of water vapor in the atmosphere and thus the size of the greenhouse effect. Rising carbon dioxide concentrations are already causing the planet to heat up.
Answer:
c
Explanation:
if numbers of protons and electrons are equal, the atom is neutral
The final speed of the SUV given the data from the question is 9.79 m/s
<h3>Data obtained from the question</h3>
- Mass of car (m₁) = 1200 Kg
- Velocity of car (v₁) = 5 m/s
- Mass of SUV (m₂) = 2600 Kg
- Velocity of SUV (v₂) = 12 m/s
- Final velocity (v) =?
<h3>How to determine the final velocity of SUV</h3>
From conservative of linear momentum,
momentum before impart = momentum after impart
m₁v₁ + m₂v₂ = v(m₁ + m₂)
Thus, we shall determine the final velocity of the SUV by obtaining the velocity after impart. This can be obtained as follow:
v = (m₁v₁ + m₂v₂) / (m₁ + m₂)
v = [(1200 × 5) + (2600 × 12)] / (1200 + 2600)
v = [(6000 + 31200)] / 3800
v = 37200 / 3800
v = 9.79 m/s
Thus, the final velocity of the SUV is 9.79 m/s
Learn more about momentum:
brainly.com/question/250648
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Explanation:
It is given that,
Weight of the person, W = F = 846 N
When the person steps onto a spring scale in the bathroom, the spring compresses by 0.574 cm, x = 0.00574 m
(a) The force acting on the spring is is given by Hooke's law as :
k = 147386.7 N/m
(b) If the spring is compressed by 0.314 cm or 0.00314 m, weight of the person is given by again Hooke's law as :
F = 462.7 N
Hence, this is the required solution.
