Answer:
0.68 m
Explanation:
Since the volume of water is 310 L, and we know that 1 litre = 1 dm³. So the volume of water is V = 310 dm³. Since this volume of water is the volume of water the cubical steel tank can contain, it equals the volume of the cubical steel tank.
We know that the volume of the cubical steel tank V = L³ where L is the length of side of the cube on the inside.
So the length of side of the cube L = ∛V = ∛310 dm³ = 6.77 dm = 6.77 dm × 1m/10 dm = 0.677 m ≅ 0.68 m
So, the smallest possible inside length of the tank is 0.68 m
When the truck accelerates forward the ball will shift to the back of the bed of the truck because of inertia
Positive
In an LED, the longer lead is always connected to the positive terminal
Answer:
The work done is
Wd=2.1 joule
N/B work done is the product of force and the applied distance
Explanation:
We know that the work done expressed Mathematically as
Wd =F*d
Where Wd=work done
F=force exerted
d=distance within which the force was exerted
Given from the statement
Force =4.2N
Distance =0.5m
Note we did not use 8.5 m because the force was no longer in application
Hence
Wd=4.2*0.5
Wd=2.1 joule
Answer:
The acceleration increases because the mass decreases.
Explanation:
From Newton's second law, force equals mass times acceleration.
F = ma
Solving for acceleration:
a = F / m
F is constant. As the fuel runs out, m decreases. Therefore, a increases.