Check the attached file for the answer.
Charina says that when waves interact with an object, they will interfere with the object, and that when waves interact with oth
2 answers:
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The power P is defined as the energy E per unit of time t:
In our problem, the power is P=25 W and the total time is t=8.0h, so we can calculate the total energy used during this time:
The energy costs 8€ per each kwh, so we can write the following proportion:
where x is the price corresponding to 0.2 kWh. Solving the proportion we find x:
€
In our problem, the power is P=25 W and the total time is t=8.0h, so we can calculate the total energy used during this time:
The energy costs 8€ per each kwh, so we can write the following proportion:
where x is the price corresponding to 0.2 kWh. Solving the proportion we find x:
Answer:
D) No, since kinetic energy is not conserved.
Explanation:
Since momentum is always conserved in all collision
so in Y direction we can say
Now similarly in X direction we will have
now final kinetic energy of both puck after collision is given as
initial kinetic energy of both pucks is given as
since KE is decreased here so it must be inelastic collision
D) No, since kinetic energy is not conserved.
Answer:
Explanation:
Let the height of the tree is y and the distance of tree from point B is x.
According to the diagram
x = 0.55 y ..... (1)
(50 + 0.55y) 1.17 = y ..... from equation (1)
58.5 + 0.644 y = y
0.356 y = 58.5
y = 164.3 ft
