The momentum of the water balloon at the given speed is 7.2 kgm/s.
The given parameters:
- <em>Speed of the water balloon, v = 18 m/s</em>
- <em>Mass of the balloon, m = 0.4 kg</em>
The momentum of the water balloon is calculated as follows;
P = mv
<em>Substitute the given values of </em><em>mass </em><em>and </em><em>velocity </em><em>as follows;</em>
P = 0.4 x 18
P = 7.2 kg m/s.
Thus, the momentum of the water balloon at the given speed is 7.2 kgm/s.
Learn more about momentum here: brainly.com/question/7538238
The question is incomplete. The complete question is :
Two conducting spheres are mounted on insulating rods. They both carry some initial electric charge, and are far from any other charge. Their charges are measured. Then, the spheres are allowed to briefly touch, and the charge in one of them (sphere A) is measured again. These are the measured values:
a). Before contact:
Sphere A = 4.8 nC
Sphere B = 0 nC
What is the charge on sphere B after contact, in nC?
b). Before contact:
Sphere A = 2.9 nC
Sphere B = -4.4 nC
What is the charge on sphere B after contact, in nC?
Solution :
It is given that there are two spheres that are conducting and are mounted on an insulating rods which carry a initial charge and they are briefly touched and then one of the charge is measured.
Here the charge becomes divided when both the spheres are connected and then removed.
a). charge after they are charged


= 2.4 nC
b). The charge is


= -0.75 nC
Answer:
60/90
Explanation:
I think because the train's highest velocity is 60 n the time is 90
Answer:
Gypsum
Explanation:
Gypsum is a soft sulfate mineral composed of Calcium Sulfate di-hydrate. It is widely used in composition of fertilizer. It is also known as land plaster. On adding gypsum to soil, the quality of soil is improved. It conditions the soil and adds nutrients. The properties of soil is improved. Hence, the correct answer is Gypsum.
Hope this helped:)
pls mark brainlist