Answer:
Since the two colliding objects travel together in the same direction after the collision, the total momentum is simply the total mass of the objects multiplied by their velocity.
Explanation:
Answer:
5.9 cm
Explanation:
We'll begin by calculating the spring constant (K) of the spring. This can be obtained as follow:
Force (F) = 15 N
Extention (e) = 3 cm
Spring constant (K) =.?
F = Ke
15 = K × 3
Divide both side by 3
K = 15 / 3
K = 5 N/cm
Therefore, the spring constant (K) is 5 N/cm.
Now, we shall determine how far the spring will stretch when a 3 kg candy is placed on the spring balance.
This can be obtained as follow:
First, we shall determine the weight of the object.
Mass of object = 3 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Weight (W) =?
W = mg
W = 3 × 9.8
W = 29.4 N
Finally, we shall determine how far the spring will stretch as follow:
Weight (W) = Force (F) = 29.4 N
Spring constant (K) = 5 N/cm
Extention (e) =?
F = ke
29.4 = 5 × e
Divide both side by 5
e = 29.4 / 5
e = 5.88 ≈ 5.9 cm
Therefore, the spring will stretch 5.9 cm when a 3 kg candy is placed on the spring balance.
Answer:
Give up.
Explanation:
Physics is horrible.
And that's the cold hard truth. :(
When we arrived on the planet .We were nothing but slowly by slowly we we started developing ourselves. Now we all can see that how science has made changes in our daily life .We have steped on the moon .We have discovered many things .For ex.Universe is about 1 million km but we have reached just about 1 cm
density = mass/volume
50 kg to g
50*1000 = 50,000 grams
200 mm to cm
200*0.1 = 20 cm
Substitute: 0.8=50,000/volume of a cylinder
volume of cylinder= (pi)(r^2)(h)
volume of cylinder=(pi)(20^2)(h)
0.8=50,000/((pi)(20^2)(h))
0.8=50,000/400*pi*h
50,000/0.8=400*pi*h
62,500=400*pi*h
62,500/(400*pi)=h
h≈49.74 cm