Chemical properties include corrosive, change in concentration of hydroxide ions when added to water, and forms hydrogen gas when in contact with a metal.
Physical properties of matter are those properties that are determined using senses or instruments. Hence, odor, taste, and texture are physical properties.
The chemical properties of a substance describe how the substance is converted to another substance.
Corrosion is the property of a substance that creates rust under the influence of oxygen from the air.
Some metals in contact with water produce hydroxides where hydrogen is also formed.
A concentration of hydroxide ions in the solution decreases due to dilution when water is added.
<span>38¹ centimetre=38 centimetre =3.8 mm</span>
Answer:
A neutrino
Explanation:
Beta decay that releases the neutron, positron and the neutrino is called the beta plus decay. The release of the neutrino accounts for the discrepancy in the mass energy conservation. This is a type of radioactive decay called beta plus decay, where a proton is converted to a neutron accompanied by the release of a positron and a neutrino.
Beta plus decay requires energy. Isolated protons cannot cause this because the mass of the neutron is greater than the mass of a proton.
Answer:
823.46 kgm/s
Explanation:
At 9 m above the water before he jumps, Henri LaMothe has a potential energy change, mgh which equals his kinetic energy 1/2mv² just as he reaches the surface of the water.
So, mgh = 1/2mv²
From here, his velocity just as he reaches the surface of the water is
v = √2gh
h = 9 m and g = 9.8 m/s²
v = √(2 × 9 × 9.8) m/s
v = √176.4 m/s
v₁ = 13.28 m/s
So his velocity just as he reaches the surface of the water is 13.28 m/s.
Now he dives into 32 cm = 0.32 m of water and stops so his final velocity v₂ = 0.
So, if we take the upward direction as positive, his initial momentum at the surface of the water is p₁ = -mv₁. His final momentum is p₂ = mv₂.
His momentum change or impulse, J = p₂ - p₁ = mv₂ - (-mv₁) = mv₂ + mv₁. Since m = Henri LaMothe's mass = 62 kg,
J = (62 × 0 + 62 × 13.28) kgm/s = 0 + 823.46 kgm/s = 823.46 kgm/s
So the magnitude of the impulse J of the water on him is 823.46 kgm/s
Explanation:
Acceleration. Angular acceleration: Is the rate of change of the angular velocity of a body with respect to time.
Force. Torque: Is also called rotational force, since an applied torque will change the rotational motion of a body.
Mass. Moment of inertia: It is the resistance that opposes a body to rotates.
Work. Work: In a rotational motion, the work is done by the torque.
Translational kinetic energy. Rotational kinetic energy: is the kinetic energy due to the rotational motion of a body.
Linear momentum. Angular momentum: Represents the quantity of rotational motion of a body.
Impulse. Angular impulse: Is the change in angular momentum of a body.