The mass of the soil sample is 82g.
- The container has a mass of 15g.
- Let the mass of the soil be "x" g.
- The mass of the container and soil combined is 97g.
- container mass + soil mass = total mass
- 15g + x = 97g
- x = 97g-15g
- x = 82g
- The amount of matter that makes up a physical body is known as its mass. It serves as a gauge for the body's inertia.
- The amount of matter that makes up any item or body is the best way to define mass. Everything we see around us is made of mass.
- In physics, mass is the most fundamental characteristic of matter and one of the fundamental quantities. The amount of matter in a body is referred to as its mass. The kilogram is the kilogram, which is the SI unit of mass (kg).
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Answer:
The gravitational force between two objects depends only on their masses.
i think sorry if its wrong!!
Explanation:
Answer:
The time it will take to cook three hot dogs simultaneously is 2.5 minutes
Explanation:
Here we have, the Energy of electric heating given by Joule heating that is;
P = IV = 120×10 = 1200 J/s = 1.2 kJ/s
Since the energy required to cook one hotdog = 60.0 kJ we have
Energy required to cook three hot dogs = 3 × 60.0 kJ = 180.0 kJ
Therefore, the time required to cook the three hot dogs is
(180.0 kJ)/(1.2 kJ/s) = 150 s
The time it takes to cook three hot dogs simultaneously is
150 seconds or 150/60 minutes which is 2 minutes 30 seconds or 2.5 minutes
Answer:
The oxidation number of a monatomic (composed of one atom) ion is the same as the charge of the ion. For example, the oxidation numbers of K+, Se2−, and Au3+ are +1, -2, and +3, respectively. The oxidation number of oxygen in most compounds is −2.
Explanation:
Answer:
The function is x = e^(-t/2) * (0.792*sin12t + 5cos12t)
Explanation:
we have to:
m = mass = 4 kg
k = spring constant = 577 N/m
c = damping constant = 4 N*s/m
The differential equation of motion is equal to:
m(d^2x/dt^2) + c(dx/dt) + k*x = 0
Replacing values:
4(d^2x/dt^2) + 4(dx/dt) + 577*x = 0
Thus, we have:
4*x^2 + 4*x + 577 = 0
we will use the quadratic equation to solve the expression:
x = (-4 ± (4^2 - (4*4*577))^1/2)/(2*4) = (-4 ± (-9216))/8 = (1/2) ± 12i
The solution is equal to:
x = e^(1/2) * (c1*sin12t + c2*cos12t)
x´ = (-1/2)*e^(1/2) * (c1*sin12t + c2*cos12t) + e^(-t/2) * (12*c1*cos12t - 12*c2*sin12t)
We have the follow:
x(0) = 5
e^0(0*c1 + c2) = 5
c2 = 5
x´(0) = 7
(-1/2)*e^0 * (0*c1 + c2) + e^0 * (12*c1 - 0*c2) = 7
(-1/2)*(5) + 12*c1 = 7
Clearing c1:
c1 = 0.792
The function is equal to:
x = e^(-t/2) * (0.792*sin12t + 5cos12t)
