15) What is the frequency of a pendulum that is moving at 30 m/s with a wavelength of .35 m?show step by step

Answers

Answer 1

Answer:

We know that there is a formula velocity = frequency x wavelength for all types of waves.

If we assume one complete oscillation of a pendulum to be wavelength we can apply the above formula for the pendulum too.

So as v = fλ and f = v/λ we can just plug in the values to get our answer of frequency.

So frequency = 30/0.35 which is equal to 85.17 Hertz (Hz).

Answer 2

Answer:
I think you're trying to take the formulas for speed, wavelength, and
frequency of a wave, and apply them to a pendulum. You can't do that.
It doesn't work.

A pendulum is moving in 'simple harmonic motion', not wave motion.
It's speed is continuously changing, from zero at both ends of its swing,
to maximum as it passes through the 'rest' position at the bottom. And
there's no wavelength defined for a pendulum ... if you're thinking that
it could be the distance from end to end of its swing, or maybe half of
that, you should know that the frequency of an ideal simple pendulum
is not related to that distance at all.

Finally, in the real world, the numbers in this question really kind of
don't make any sense. You have a structure where some part of it is
roughly a foot long (0.35m = 13.8 inches), and at least at some point
during its swing, something is moving at 30 m/s ... about 67 mph !
If something like that could even stay on the table, and IF its frequency
were (speed/wavelength) ... like a wave's frequency is ... then its frequency
would be (30 / 0.35) = 85.7 Hz ! ! The thing would be wiggling back and
forth every 0.017 second ! It would need to be operated only inside
a bomb shelter, with all personnel withdrawn beyond a safe perimeter
before it flies apart and scatters shrapnel everywhere.

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How does heat differ from thermal energy

Answers

Ok, so the easiest thing to do would be to first figure out the definitions, and then compare the terms from there. So, thermal energy is basically the inside or internal temperature thats part of a system due to its temperature. And, the definition of heat is high in temperature, or or something having the quality of being hot. So, if you use those definitions, you can come up with various differences. One of those differences could be that heat is the overall temperature or measure of the heat of an object, while thermal energy can be measured as the kinetic energy held within free particles or, the thermal energy per particle.

Final answer:

Thermal energy is the total internal kinetic energy due to the random motion of particles in an object, while heat is a form of energy transfer that happens due to a temperature difference between two objects or systems.

Explanation:

Heat and thermal energy are related concepts in physics but they are not the same thing. Thermal energy is the total internal kinetic energy of an object due to the random motion of its atoms and molecules. It is dependent on the temperature, mass, and type (or specific heat) of the material.

Heat, on the other hand, is a form of energy transfer that occurs due to a temperature difference between two objects or systems. It is the process of transfer of thermal energy from a hotter object to a cooler one. So, heat is a form of thermal energy in transit, typicallyg transferrin from areas of high temperature to areas of low temperature.

Learn more about difference between heat and thermal energy here:

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The psychologist who worked with Peter and helped him associate rabbits with positive things was: a. Mary Covert-Jones
b. Ivan Pavlov
c. Elizabeth Loftus
d. John Watson

Knowing the formula for water and table salt is an example of:_________________memory.
a. episodic
b. procedural
c. semantic
d. echoic

The part of the brain that appears to be involved in the processing of short-term memories into long term is the:
a. hypothalamus
b. hippocampus
c. corpus callosum
d. cerebrum

Answers

1. Mary Cover-Jones

2.Knowing the formula for water and table salt is an example of episodic memory. so d

3.Hippocampus

Answer:

1) Mary Cover-Jones

2) episodic

3) hippocampus

Hope this helped man!

In an elements square on the periodic table the number with the number greatest value represent the

Answers

The atomic mass is the greatest number but it depends on the element for the number

What could you do to change the volume of a gas?

Answers

People are going to tell you about heating or cooling the gas, but
there's only one way to change the volume of a gas: Put it into a
different container !

A gas always expands to fill whatever you keep it in ... doesn't matter
how warm or cold it is. So the only way to make it change its volume
is to put it into a larger or smaller jar.

Heat it up to make it expand, or cool it down to make it contract. When you heat a gas, the particles of the gas get farther apart, therefore making the gas expand. The opposite happens when you make it colder.

Gravity causes___ objects to accelerate

Answers

Gravity causes falling objects to accelerate.

all?

Most likely all.

The reason is since the acceleration of gravity is about 10 m/s^2 this means that gravity would cause all objects to accelerate at the same rate. So most likely all objects.

When compounds form, what is one result for the atoms that bonded?A. a stable arrangement of electrons

B. an unstable arrangement of electrons

C. more than eight electrons in their valence shell

D. fewer than eight electrons in their valence shell

Answers

One result for the atoms that bonded together when a compound forms is a stable arrangement of electrons.

When compounds form, the result for the atoms that are bonded is a stable arrangement of electrons. The answer is letter A. An unstable arrangement of electrons, more than eight electrons in their valence shell and fewer than eight electrons in their valence shell do not result in the bonding of atoms.

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two objects were lifted by machine one object had a massive 2 kg it was lifted at a speed of 2 m/s the other had a massive 4 kg and was lifted at a rate of three meters per second which object has more kinetic energy