Question: A cylinder is submerged in water as illustrated in the diagram. Which of the following statements is true?
Answer: The pressure at D is less than at B.
Explanation: this is because B has less amount of pressure and D has a lot more pressure weighing it down and B has less pressure
question answered by
(jacemorris04)
Forehead, Feet and Elbows, if the person is perfect health condition.
Explanation:
That's because the Sun's acceleration is much smaller
Answer:
9.96x10^-20 kg-m/s
Explanation:
Momentum p is the product of mass and velocity, i.e
P = mv
Alpha particles, like helium nuclei, have a net spin of zero. Due to the mechanism of their production in standard alpha radioactive decay, alpha particles generally have a kinetic energy of about 5 MeV, and a velocity in the vicinity of 5% the speed of light.
From this we calculate the speed as
v = 5% 0f 3x10^8 m/s (speed of light)
v = 1.5x10^7 m/s
The mass of an alpha particle is approximately 6.64×10−27 kg
Therefore,
P = 1.5x10^7 x 6.64×10^−27
P = 9.96x10^-20 kg-m/s
