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.
your answer is make up artist
<em>The least distance up to which we can see the objects clearly without any strain is called least distance of distinct vision. Least distance of distinct vision for a normal human being is 25cm. For young people, the least distance of distant vision will be within 25cm which however it varies with age.</em>
Answer:
Lyrics C :like an open circuit at high frequencies and a short circuit at low frequencies
Explanation:
The impedance produce by the presence of an inductance in an electric circuit has a general equation Z(r) = jωl where j is the imaginay number, l is the inductor in henrios and ω is the frecuency of the curent ( ω = 2πf , f is the frecuency in hertz)
So module of the inductance directly depends on ω = 2πf then when f the frecuency increase, the value of ωl, also increase and when the value of f decrease ωl will decrease. For very high value of ω the inductance can become very very high ( even up to an open circuit ) and the opposite for very low values of frecuencies ωl could be very low (as to a short circuit
Answer:
Axial flow pumps can usually handle large flow rates. They hence have high specific speed - b.