Answer:
Principal quantum numbers are denoted by the symbol 'n'. They designate the principal electron shell of the atom. The positive whole number values starting from 1,2,3 and so on..
Explanation:
All orbitals that have the same value of n are said to be in the same shell (level). For a hydrogen atom with n=1, the electron is in its ground state; if the electron is in the n=2 orbital, it is in an excited state. The total number of orbitals for a given n value is n2.
Answer:
343/1500
Explanation:
Power: This can be defined as the product force and velocity. The S.I unit of power is Watt (w).
From the question,
P' = mg×v................. Equation 1
Where P' = power used to gain an altitude, m = mass of the engine, g = acceleration due to gravity of the engine, v = velocity of the engine.
Given: m = 700 kg, v = 2.5 m/s, g = 9.8 m/s²
Substitute into equation 1
P' = 700(2.5)(9.8)
P' = 17150 W.
If the full power generated by the engine = 75000 W
The fraction of the engine power used to make the climb = 17150/75000
= 343/1500
A golf ball<span> with a </span>mass<span> of 0.080kg initially at rest is given a speed of 50 m.s-1 ... When a </span>0.045 kg golf ball<span> takes off after being </span>hit<span>, its speed is 35 m/s. ... </span>golf<span> club with a </span>mass<span> of 250 g </span>travels<span> at 50 </span>meters per second hits<span> a 40 g </span>golf ball<span> and ... its speed is </span>41<span> m/s. a) What is the </span>kinetic energy<span> of the </span>ball<span> after it has been </span>hit<span>? hope it helps
</span>
Answer:
Chemical energy to heat energy to kinetic energy to electrical energy
