The atomic mass is the protons + the neutrons.
So your answer would be 5 + 6 = 11.
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There are 3 types of electromagnetic radiation given off by the sun. The first being visible light. Visible light radiation is 99% of the sun's rays. The remaining 1% is made up of UV radiation and Infrared. UV radiation is what is responsible for sunburns.
Answer: fourth option 1.2 × 10³ joules
Explanation:
1) kinetic energy is calculated as the half of the product of the mass times the square of the speed:
=> KE = (1/2) m × (v)²
2) you know the mass after the collision and the speed so you have all the data fo find the numerical value of the expression for KE:
m = m1 + m2 = 200 kg + 250 kg = 450 kg
KE = (1/2) × 450 kg × (2.3 m/s)² = 1,190.25 joules ≈ 1200 joules = 1.2 × 10³ joules, which is the last option of the list.
My answer is 5 I’m pretty sure
Answer:
90m/s
Explanation:
acceleration depicts the rate of change in velocity per time, therefore an acceleration of 3m/s² means the object increases its velocity 3m/s every second therefore the second squared in the denominator
acceleration = (3m/s)/1s =3m/s²
Therefore, if the plane starts from rest (initial speed = 0m/s) and it increases 3m/s every second for 30 seconds you would have:
final_speed = initial_speed + 3m/s²*30s =0+3*30 m*s/s² = 90 m/s