Answer:
False
Explanation:
Please see the attached file
Answer: the answer is false
Explanation:
I just took the test.
B: a chain reaction
C: a fusion of uranium nuclei
D: krypton atoms to split into strontium and xenon
The correct answer is:
B: a chain reaction
Explanation:
A chain reaction is a series of reactions where a reactive output or by-product produces additional reactions to earn a place. In a chain reaction, extremely feedback leads to a self-amplifying series of events.
Chain reactions are one way that systems which are not in thermodynamic stability can release energy or improve entropy in order to enter a state of greater entropy.
The word momentum means mass and velocity taken together.
Mass is an intrinsic basic physical quantity which tells us about the amount of matter contained in a body. It is a scalar quantity and it is measured in kilogram(Kg).
Velocity is the rate of change of displacement . It is defined as displacement per unit time. It is a vector quantity and measured in meter per second (m/s)
The product of mass and velocity is momentum. When a body possesses both mass and velocity we say that it has momentum. It is a vector quantity. Its unit is kg m/s
Mathematically we write momentum as,
P = mv
Mathematically we write momentum a
Where, P = momentum
m = mass
v= velocity.
When a force is applied on a body, it changes its momentum. The relationship between force and momentum is given by Newton's second law of motion which states that the rate of change of momentum is directly proportional to the force applied,
F = Δp /Δt
Where F= force
Δp = change in momentum
Δt = time taken for the change in momentum to occur.
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Answer:
In my mind when I hear the word momentum it comes that it is the product of mass and velocity.
b. a line along which air pressure is constant
c. a region in which the weather is not changing
d. a symbol on a weather map showing wind direction
Answer:
B.a line along which air pressure is constant
Explanation:
i took the quiz and got it right
10 m/s, northwest
14 m/s, northwest
48 m/s, northwest
The correct answer to the question is : 10 m/s , northwest.
EXPLANATION:
As per the question, the velocity of wind V = 8 m/s towards north.
The velocity of the paper airplane is V' = 6 m/s towards west.
We are asked to calculate the actual velocity of the airplane.
By putting Pythagorean theorem, the actual velocity of the airplane is calculated as -
⇒
⇒
⇒
⇒ towards northeast.
Hence, the correct answer is 10 m/s , northwest.
Answer:
Raindrops are considered damaging to the soil in the following ways:
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Answer:
1) The force Christian can exert on his bicycle before picking up the the cargo is 529.74 N
2) The force Christian can exert on his bicycle after picking up the the cargo is 647.46 N
Therefore, Christian has to exert more force on his bike after picking up the cargo
Explanation:
The given parameters are;
The mass of Christian and his bicycle = 54 kg
The mass of the cargo = 12 kg
1) The force Christian can exert on his bicycle before picking up the the cargo = Mass of Christian and his bicycle × Acceleration due to gravity
∴ The force Christian can exert on his bicycle before picking up the the cargo = 54 kg × 9.81 m/s² = 529.74 N
2) The force Christian can exert on his bicycle after picking up the the cargo = (54 + 12) kg × 9.81 m/s² = 647.46 N
Therefore, Christian has to exert more force on his bike after picking up the cargo.