Answer:
due to the properties of radioactive elements like penetration power and ionization effect they can cause gene mutations, kill living cells and cause cancer. They also have the advantages. They are used to make nuclear energy
Answer:
Speed of wave 54 ms⁻¹.
Explanation:
Given data:
Frequency of wave = 60 Hz
Wavelength of wave = 0.90 m
Speed = ?
Solution:
Formula
speed = wavelength × frequency
Now we will put the values in formula.
v = f × λ
Hz = s⁻¹
v = 60 s⁻¹ × 0.90 m
v = 54 m s⁻¹
The gravitational pull causes the sun’s magnetic field to become both stronger and more tangled
Answer:
Explanation:
From the question we are told that
Initial speed
Final speed 
Generally the Newtons equation of motion is mathematically represented by
with
Therefore
Therefore
Magnitude of initial velocity
<em>To calculate the </em><em>magnitude</em><em> of the </em><em>velocity</em><em> at any point in time, multiply the constant acceleration rate times the time difference and then add it to the </em><em>initial velocity.</em><em> As an example, if you dropped a rock off a cliff, its </em><em>velocity</em><em> increases by 32 feet per second, every second.</em>
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<h2><em>Hope this helps you a lot ...</em></h2><h2><em>Good day :)</em></h2>
