The horizontal distance traveled below the table's edge is 29.4 cm.
The given parameters;
- <em>mass of the bullet, = 15 g = 0.015 kg</em>
- <em>speed of the bullet, = 630 m/s</em>
- <em>mass of the block, = 4.9 kg</em>
The final velocity of the bullet-block system is calculated as follows;
The time for the bullet-block system to reach the ground from the table is calculated as follows;
The horizontal distance traveled below the table's edge is calculated as follows;
Thus, the horizontal distance traveled below the table's edge is 29.4 cm.
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Diffraction patterns are due to interference<span>. Diffraction is a phenomena which occurs when a wave encounters an obstacle. It is the bending of light around the corners if the obstacle.</span>
Answer:
A. Endothermic reaction.
B. +150KJ.
C. 250KJ.
Explanation:
A. The graph represents endothermic reaction because the heat of the product is higher than the heat of the reactant.
B. Determination of the enthalpy change, ΔH for the reaction. This can be obtained as follow:
Heat of reactant (Hr) = 50KJ
Heat of product (Hp) = 200KJ
Enthalphy change (ΔH) =..?
Enthalphy change = Heat of product – Heat of reactant.
ΔH = Hp – Hr
ΔH = 200 – 50
ΔH = +150KJ
Therefore, the enthalphy change for the reaction is +150KJ
C. The activation energy for the reaction is the energy at the peak of the diagram.
From the diagram, the activation energy is 250KJ.
i believe the answer would be C.
Hope this helps!
Answer:
option D
Explanation:
given,
mass of the freight car (m) = 5,000 Kg
initial speed of car (u)= 2 m/s
mass of the freight car (M)= 10,000 Kg
initial speed (u')= 0 m/s
speed after collision (V)= ?
using conservation of momentum
m u + M u' = (M + m) V
5000 x 2 + 10000 x 0 = (5000 + 10000) V
couples move away with the speed of
Hence, the correct answer is option D