Answer:
400 m/s
Explanation:
From the question;
We are required to calculate the speed of the wave;
Speed of the wave = 200 Hz × 2 m
= 400 m/s
Answer:
The main difference between silicate minerals and nonsilicate minerals is that silicate minerals are composed of silicate groups whereas Nonsilicate minerals have no silicate groups.
eras and then smaller periods based on geologic and biologic events that occurred during those times
millennia and then smaller periods based on geologic and biologic events that occurred during those times
periods and then smaller eras based on geologic and biologic events that occurred during those times
Studies of sedimentary rocks and fossils have helped scientists understand the history of Earth. the geologic time is organized on the geologic time scale as eras and then smaller periods based on geologic and biologic events that occurred during those times, therefore the correct answer is B .
Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.
As given in the problem statement Studies of sedimentary rocks and fossils have helped scientists understand the history of Earth .
Studies of fossils and sedimentary rocks have aided in the understanding of Earth's history. The correct response is B since the geologic time is divided into eras and then smaller periods depending on the geology and biological events that took place during those times .
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The answer is B) eras and then smaller periods based on geologic and biologic events that occurred during those times. I took this test :)
The originalmomentum of a pencil is distributed equally to the other half of
the pencil.
The pencil breaking into two is as a result of the internalforces acting in
opposite direction which caused the breakage.
The total momentum of a body before collision being equal to the total
momentum of the two objects after collision has occurred which is why the
pencil will have momentum distributed equally in this scenario.
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Answer:
ORIGINAL MOMENTUM OF THE PENCIL GETS DISTRIBUTED TO THE BROKEN HALFS EQUALLY .
Explanation:
GENERALLY :
IN THIS CASE :
(neglecting the impulse and force of gravity)
To accelerate a shopping cart with a mass of 65kg at a rate of 0.3 m/sec2, you would need to exert a force of 19.5 Newtons, according to Newton's second law of motion.
The subject of this problem is physics, specifically the concept of force, mass, and acceleration within the domain of Newton's second law of motion. The law states that the force needed to accelerate an object is equal to the mass of the object multiplied by the desired acceleration.
Given the mass of the cart is 65 kilograms and the acceleration is 0.3 m/sec2, you can calculate the required force using the formula:
Force = mass * acceleration.
So, Force = 65 kg * 0.3 m/sec2 = 19.5 Newtons. Therefore, you would have to exert a force of 19.5 Newtons to accelerate the shopping cart at the specified rate.
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The transfer of thermal energy as heat requires a difference in temperature between the two points of transfer. Heat may be transferred by means of conduction, convection, or radiation. Conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object.
Heat transfer between two objects ends when they reach the same temperature or thermal equilibrium. This process is guided by the second law of thermodynamics and can be observed via changes in temperature. Once no net heat transfer occurs over time, a state of thermal equilibrium is reached.
The transfer of heat, or thermal energy, between two objects ends when those objects reach the same temperature, a state known as thermal equilibrium. This process is guided by the second law of thermodynamics, which indicates that heat will naturally transfer from a hotter object to a cooler one. For instance, if you put ice into a hot drink, heat transfers from the warmer drink to the colder ice until they both reach the same temperature. Furthermore, the internal energy of a system, which includes its thermal energy, is directly proportional to its temperature. Hence, observing the temperature change can provide an indication of when heat transfer has ceased.
However, it's important to note that the absence of a temperature difference doesn't mean energy isn't there; it just isn't available for work because no more heat transfer can occur without a temperature difference. This provides a fundamental characterization of a thermodynamic system and exemplifies that observation of no net heat transfer over time indicates a state of thermal equilibrium.
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saw, how far out would Mickey have to sit if he wants to apply
the same force onto you that you apply onto him? meters
To apply the same force as the person, the brother have to sit at a distance of 5 m.
What is meant by torque ?
Torque is defined as the rotational analogue of force. It is the cross product of force and the displacement of the object.
Here,
Mass of the person, m₁ = 50 kg
Mass of the brother, m₂ = 20 kg
Distance of the person, d₁ = 2 m
For the see-saw to get balanced, the torque applied by the two persons each side must be equal.
τ₁ = τ₂
where τ₁ is the torque applied by the person and τ₂ is that applied by the brother.
So, F₁d₁ = F₂d₂
m₁g x d₁ = m₂g x d₂
m₁d₁ = m₂d₂
Therefore, distance of the brother,
d₂ = m₁d₁/m₂
d₂ = 50 x 2/20
d₂ = 5 m
Hence,
To apply the same force as the person, the brother have to sit at a distance of 5 m.
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Answer:
5
Explanation: