Answer:
ω = √(2T / (mL))
Explanation:
(a) Draw a free body diagram of the mass. There are two tension forces, one pulling down and left, the other pulling down and right.
The x-components of the tension forces cancel each other out, so the net force is in the y direction:
∑F = -2T sin θ, where θ is the angle from the horizontal.
For small angles, sin θ ≈ tan θ.
∑F = -2T tan θ
∑F = -2T (Δy / L)
(b) For a spring, the restoring force is F = -kx, and the frequency is ω = √(k/m). (This is derived by solving a second order differential equation.)
In this case, k = 2T/L, so the frequency is:
ω = √((2T/L) / m)
ω = √(2T / (mL))
b. gamma rays
c. infrared rays
d. ultraviolet rays
The answer is B, Gamma rays.
Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity on the object.
B.
Weight is a measure of the amount of matter in an object, while mass is a measure of the force of gravity on the object.
C.
Mass is a measure of an object's inertial force, and weight is the force exerted by that object on other objects.
D.
Mass and weight are synonyms and ultimately describe the same principle.
Weight is a measurement of the object's gravitational pull, whereas mass is a measure of the amount of substance in the thing. The right answer is A.
Mass is a measure of a physical body's entire makeup. This term also measures inertia, or the body's resistance to acceleration when a net force is applied. The basic mass unit of the SI is the kilogram.
The weight of an object refers to the gravitational force acting on it. Weight is the term used in many widely used textbooks to describe the gravitational force acting on the object. The mass is a matter present and the weight is the force.
Therefore, the weight is a measurement of the object's gravitational pull, whereas mass is a measure of the amount of substance in the thing. The right answer is A.
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Mass is the measure of how much matter an object has and remains constant regardless of location, while weight is the measure of the force of gravity acting on that object, which varies based on the gravitational environment.
Mass is a measure of the amount of matter in an object. It is a property that reflects how much space that object occupies in three-dimensional space. It remains constant regardless of where the object is.
On the other hand, weight is a measure of the force of gravity acting on the object. Weight can change based on the gravitational force of the environment; for example, an object weighs less on the moon than it does on Earth because the moon's gravitational force is less than Earth's.
So, the answer to your question is A. Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity on the object.
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During a race, a horse's speed increases from 65 m/s to 73 m/s during the last 5.0 seconds of that race, 1.60 m/s² was the rate of acceleration during this time.
The rate of change of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, but this is not always the case. When an object moves in a circular path at a constant speed, it is still accelerating because its velocity direction changes.
Acceleration occurs when the speed of an object increases or decreases, or when it changes direction. Acceleration, like velocity, has two types: average and instantaneous.
a = v - v₀ / t
Then, a = 73 × 65 / 5
a = 1.60 m/s²
Thus, 1.60 m/s² was the rate of acceleration during this time.
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Answer:
1.6m/s²
Explanation:
It was difficult to type the answer here
Answer:
By the information given, I am not sure how the event has played out. However, using common knowledge, I can give a scenario of how it may play out.
When removing the first block (the foundation), gravity will pull the other blocks down, as the strength of gravity exceeds that of the strength of air holding it up. This means that all the blocks on top would fall.
By definition of Newton's 1st - 3rd laws, the blocks would not move unless a force is given to it (i.e., removing the bottom block, which causes gravity). Gravity would pull the other blocks downwards. This would lead to the falling of the stack of blocks.
~
Answer:
Explanation:
A stack of blocks sits in equilibrium. That means, by Newton's 1st law, all blocks will remain stationary. The weight of each block is balanced by the reaction force from the block underneath it. The bottom block experiences a reaction force equals to the total weight of all blocks from the ground.
When the bottom block is removed, there will not be any reaction force from the ground. That causes a disturbance in the equilibrium. Without the balancing reaction, the blocks will have the gravity force from their weights pulling them down. By Newton 2nd law, the unbalance force will cause the blocks to accelerate towards the ground until they all crash-land.
B. The evidence helps scientists come up with explanations about
the natural world.
C. The evidence proves that scientists are always right.
D. The evidence supports scientists' personal opinions about politics.
SUNT
Answer: B
The evidence helps scientists come up with explanations about
the natural world.
When making a research, scientists use the scientific method to collect enough evidence in an experiment related to a hypothesis, the results aiming to support or contradict a theory.