Answer:
0.7 m.
Explanation:
We are given that
Initial velocity of fox,v=12 m/s
Distance of fox from the ball=3.2 m
Horizontal component of velocity=
Vertical component of velocity=
Time taken by fox to travel in horizontal direction=
Time taken by box to the wall=0.28 s
Formula:
Where
Using the formula
Takine g negative because fox going against to gravity.
Hence, the fox will reach upto height 0.7 m when it reaches the wall
Answer:
Approximately along the slope, assuming that no energy was lost to friction.
Explanation:
Let denote the initial velocity of this vehicle. Let denote the mass of this vehicle. The kinetic energy (KE) of this vehicle would have initially been:
.
The gain in the gravitational potential energy (GPE) of this vehicle is proportional to the increase in its height.
Let denote the gravitational field strength. on the earth. If the increase in the height of this vehicle is , this vehicle would have gained GPE:
.
Hence, the height of this vehicle is maximal when the GPE of this vehicle is maximized.
Since the vehicle went out of fuel, all its GPE would have been converted from KE. Assuming that no energy was converted to friction. The GPE of this vehicle would be maximal when the entirety of the KE was converted to GPE.
Hence, the maximal GPE of this vehicle would be equal to its initial KE:
.
The maximum height of this vehicle would be:
.
Given that , the maximum height of this vehicle would be:
.
Refer to the diagram attached. The distance that this vehicle traveled along the slope would be approximately:
.
Answer:
1.75 s
11.4 m
Explanation:
In the y direction:
Given:
Δy = -15.0 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
-15.0 m = (0 m/s) t + ½ (-9.8 m/s²) t²
t = 1.75 s
In the x direction:
Given:
t = 1.75 s
v₀ = 6.50 m/s
a = 0 m/s²
Find: Δx
Δx = v₀ t + ½ at²
Δx = (6.50 m/s) (1.75 s) + ½ (0 m/s²) (1.75 s)²
Δx = 11.4 m
Answer:
the correct statement is
* atoms cannot be created or destroyed
Explanation:
The Datlon atomic model was proposed in 1808 and represents atoms as the smallest indivisible particle of matter, they were the building blocks of matter and are represented by solid spheres.
Based on the previous descriptive, the correct statement is
* atoms cannot be created or destroyed