Roxy weighs 120 lbs and dead lifts 150 lbs. What is her absolute strength?

Answer:

4m/s4

Explanation:

Answer: D.

Explanation:

Moji listed the solids in order of hardness as graphite < chalk < quartz. because his peer group suggested some experimental errors that may have caused this to happen. The experimental error most likely led Moji to the conclusion that Moji could have chosen hardness tests that were not reliable. Therefore the correct option is D.

Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.

These different states of matter have different characteristics according to which they vary their volume and shape.

There are various tests to judge the mechanical hardness of any solid  material such as the Rockwell hardness test, Brinell's hardness test,Vicker's diamond hardness test, and Knoop's hardness test which is also known as microhardness test

The experimental error most likely led Moji to the conclusion that Moji could have chosen hardness tests that were not reliable. Therefore the correct option is D.

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Answer:

the answer of this question is iii .

if the answer is wrong so sorry

The tension in the horizontal portion of the rope is 39.24 N.  In a system of two blocks connected by a rope passing over two frictionless pulleys, the tension in the rope is the same throughout the rope.

We can use this fact to solve for the tension in the horizontal portion of the rope.

Let T be the tension in the horizontal portion of the rope, as shown in the figure. The weight of each block is given by mg, where m is the mass of each block and g is the acceleration due to gravity. The net force acting on each block is the tension in the rope pulling it up, minus the weight pulling it down:

For the block on the left: T - mg = ma

For the block on the right: T - mg = ma

where a is the acceleration of the system.

Since the blocks are not moving, the acceleration of the system is zero, so we can solve these two equations for T:

T = mg

Substituting m = 4 kg and g = 9.81 m/s^2, we get:

T = (4 kg)(9.81 m/s^2) = 39.24 N

So the tension in the horizontal portion of the rope is 39.24 N.

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The magnetic field determines where the particle lands on the screen.

An electric field will cause a charged particle to accelerate in that direction, whether it is initially moving or not. A charged particle traveling through a magnetic field will spiral, with the magnetic field's direction serving as the axis. The particle would move helically (like a screw) if it had a velocity component parallel to the magnetic field.

On the other hand, the field is electric if the particle follows a parabolic path. If the particle accelerates linearly, the field may also be electric. The particle is traveling parallel to a magnetic field—or there is no field—if it moves in a straight path with uniform velocity (zero acceleration).

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I agree with the application of such offenses where criminal responsibility is imposed on strict liability offenses because it is needed to protect public welfare, promote safety, and deter potential harm.

Strict liability offenses are those in which liability is imposed without requiring proof of intent or guilty mind. These offenses focus on the act itself rather than the mental state of the offender. The rationale behind strict liability offenses is often rooted in the need to protect public welfare, promote safety, and deter potential harm.

An argument in favor of strict liability offenses is that they ensure accountability for certain actions that pose a significant risk to society, even in the absence of intent or mens rea. By placing the burden on individuals to adhere to certain standards or regulations, strict liability offenses can help prevent accidents, protect public health, and maintain order.

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Answer:

0.015 seconds

Explanation:

5/330=0.015

Answer:

0.015 seconds

Explanation:

divide 5 m and 330 m/s to get 0.015 seconds.

The larger force causes more acceleration than the smaller. The correct option is A

From the question, we are to determine the relationship between the two forces.

From Newton's second law of motion, we have that

F = ma

Where F is the force

m is the mass

and a is the acceleration

Then, we can write that

F ∝ a

That is,

Force varies directly as acceleration

In order words, the larger the force, the more the acceleration; and the smaller the force, the less the acceleration.

Hence can conclude that the larger force causes more acceleration

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The direction of the induced current is counterclockwise.

This states that induced electric current flows in a direction such that the current opposes the change that induced it.

The direction of the induced current is counterclockwise as a result of the north pole being oriented downwards which is the opposite direction of the hands of a clock movement.

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From the given options let's select the example which shows a conceptual model.

A conceptual model can be said to be a model which shows an abstract representation of any concept which can be visualized or imagined than other models.

It is a model which the designers want users to understand.

From the list, the best option which is an example of a conceptual model is a mental image of gas molecules as tiny balls.

Let's say, for example, you imagine or have a mental picture of gas molecules using your imagination, it helps to understand how a vacuum system works and you can easily solve the problem if something goes wrong.

Therefore, the example of a conceptual model is:

A mental image of gas molecules as tiny balls.

• ANSWER:

A. mental image of gas molecules as tiny balls

Explanation:

μ = coefficient of friction.

F = Frictional force = 12N

R = Normal reaction = mg = Weight = 240N

m = mass

g = acceleration due to gravity ≈ 9.8ms—²

μ = F/R

μ = 12/240

μ = ¹/20

μ = 0.05

To find the current in the circuit at the instant the capacitors have lost 80.0% of their initial stored energy, we would need to know the capacitance and the resistance in the circuit. With this information, we can calculate the voltage across the capacitors and then determine the current using Ohm's Law.

The energy stored in a capacitor can be calculated using the formula: E = 0.5 * C * V^2, where E is the energy stored, C is the capacitance, and V is the voltage across the capacitor.

Since the capacitors are losing 80.0% of their initial stored energy, this means they will retain 20.0% of their initial energy. Therefore, the energy remaining in the capacitors can be calculated as 0.2 * (initial energy).

Now, let's assume that the initial energy stored in the capacitors is denoted by E0. So, the remaining energy is 0.2 * E0.

Using the formula for energy stored in a capacitor, we can equate 0.5 * C * V^2 to 0.2 * E0 and solve for the voltage across the capacitors.

Once we have the voltage across the capacitors, we can determine the current in the circuit using Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). In this case, the resistance is not given, so we would need additional information to calculate the current precisely.

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The minimum value of the transmission signal bandwidth in the case of a multi-level PAM signal with 64 levels, using a symbol waveform of a square pulse, is 8 kHz. The symbol rate is also 8 kHz.

In a multi-level PAM (Pulse Amplitude Modulation) signal, the number of levels determines the number of distinct amplitudes that can be transmitted. In this case, there are 64 levels.

To determine the minimum value of the transmission signal bandwidth, we need to consider the Nyquist criterion. According to the Nyquist theorem, the minimum bandwidth required for a signal is twice the highest frequency component of the signal. Here, the highest frequency component of the voice signal is 3.4 kHz.

Since the voice signal is sampled at a frequency of 8 kHz, the Nyquist criterion tells us that the minimum bandwidth required for transmission is 2 * 3.4 kHz = 6.8 kHz. However, in practice, it is common to choose a slightly higher value to account for the practical implementation considerations. Therefore, the minimum value of the transmission signal bandwidth is rounded up to 8 kHz.

The symbol rate is the number of symbols transmitted per second. In this case, since the voice signal is sampled at 8 kHz, the symbol rate is also 8 kHz.

Moving on to the second part of the question, when transmitting the PAM signal into binary data using PCM (Pulse Code Modulation) encoding, we need to consider the bandwidth and bit rate.

To determine the bandwidth of the transmission signal when using PCM encoding with a square wave pulse, we need to apply the Nyquist criterion again. The Nyquist criterion states that the bandwidth is equal to the highest frequency component of the signal. In PCM encoding, the highest frequency component is half the sampling rate, which is 4 kHz (8 kHz / 2).

Therefore, the bandwidth of the transmission signal when using PCM encoding with a square wave pulse is 4 kHz.

The bit rate is the number of bits transmitted per second. In PCM encoding, each sample of the PAM signal is quantized and represented using a fixed number of bits. Since the symbol rate is 8 kHz and each symbol is represented by 6 bits (64 levels), the bit rate is calculated as 8 kHz * 6 bits = 48 kbps.

In summary, the bandwidth of the transmission signal when using a multi-level PAM signal with 64 levels and a square wave pulse is 8 kHz, with a symbol rate of 8 kHz. When using PCM encoding with a square wave pulse, the bandwidth of the transmission signal is 4 kHz, with a bit rate of 48 kbps.

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On both the the celsius and kelvin temperature scales, 100 degrees is the difference between  normal freezing and boiling points of water.

Boiling point

The temperature at which a fluid bubbles and goes to fume for example significantly alters its state at climatic strain is known as the edge of boiling over of the fluid.

We know that on celsius scale,freezing temperature of water is =0°C

and,boiling point of water is =100°C

Similarly,freezing point of water in kelvin scale=273K

and boiling point of water in kelvin scale=373K.

So,difference between normal freezing point of water and boiling point of water=100-0=100°C

Hence,difference is of 100°C in both kelvin and degree scale.

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The volume of the red bird feeder is approximately 217 cubic inches. The volume of the blue bird feeder is approximately 339 cubic inches. The total volume of Mia's bird feeders is approximately 556 cubic inches.
To find the volume of a cylindrical object, we use the formula V = πr^2h, where V is the volume, π is a constant (we can use 3.14 as an approximation), r is the radius, and h is the height.

For the red bird feeder, we know that the diameter is 10 inches, so the radius is 5 inches (half of the diameter). The height is given as 8.3 inches. Plugging these values into the formula, we get V = 3.14 x 5^2 x 8.3, which simplifies to approximately 217 cubic inches when rounded to the nearest whole number.

For the blue bird feeder, we know that the diameter is 12 inches, so the radius is 6 inches. The height is given as 7.5 inches. Plugging these values into the formula, we get V = 3.14 x 6^2 x 7.5, which simplifies to approximately 339 cubic inches when rounded to the nearest whole number.

To find the total volume of Mia's bird feeders, we simply add the volumes of the red and blue bird feeders. This gives us 217 + 339 = 556 cubic inches, which rounds to approximately 556 when rounded to the nearest whole number.

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Answer:

final velocity in km/h= 67.2km/h

Explanation:

Data

initial velocity (u)= 24km/h

from 36km/h = 10m/s

then 24km/h= u

hence,

\(u= \frac{24}{36} \times 10\)

u= 20/3 m/s

Time= 6s

Acceleration= 2m/s²

\(v = u + at\)

\(v = \frac{20}{3} + 2(6)\)

\(v = \frac{20}{3} + 12\)

\(v = \frac{56}{3} \)

final velocity = 56/3 m/s

From 10m/s=36km/h

56/3 m/s = V

V(km/h)=

\( \frac{56}{3} \times \frac{36}{10} \)

V(km/h)=67.2km/h

pascal is the unit of pressure

The units of pressure is called derived units because it is simply derived from base unit which is distance and a derived unit which is force, which is derived from acceleration, a derived unit as well, and mass, a base unit. As we all know, work is defined as the force x distance. Thus making work a derived unit.Jun 23, 2020

Weighting systems are used by divers primarily to achieve and maintain neutral buoyancy underwater.

Neutral buoyancy refers to a state where the diver's overall buoyant force is equal to the force of gravity, allowing them to hover at a specific depth without sinking or floating to the surface. Achieving neutral buoyancy is crucial for divers as it provides several benefits:

1. Control and Stability: With neutral buoyancy, divers can maintain precise control over their position and movement in the water. It allows them to hover effortlessly, change depth smoothly, and conserve energy.

2. Conservation of Air and Energy: By achieving neutral buoyancy, divers can reduce the amount of effort required to move through the water. This results in more efficient swimming and helps conserve air supply and energy, allowing for longer dive durations.

3. Safety: Neutral buoyancy helps divers to avoid unintentional ascents or descents, which can be hazardous. It also allows for easier and safer interaction with marine life and delicate underwater environments, as the diver can minimize contact and disturbance.

Weighting systems, such as weight belts or integrated weight pockets in buoyancy control devices (BCDs), enable divers to adjust their buoyancy and achieve neutral buoyancy. By adding or removing weights, divers can compensate for the positive buoyancy of their bodies, wetsuits, and equipment, achieving the desired buoyancy level.

It's important for divers to properly distribute and adjust their weights based on factors like the thickness of their exposure suit, the type of equipment used, and any changes in depth or water conditions during the dive. This allows them to maintain neutral buoyancy throughout their underwater exploration, enhancing safety, control, and overall diving experience.

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Debris collecting around pilings is most likely to create a boating hazard around river bridges.

The option (c) is the correct option.

Boating Hazards:

Dams, submerged items, freezing water, rapidly changing weather, sunstroke, and current are just a few of the dangers that boaters may encounter. It's not always easy to see these risks. These risks must be recognized by boaters, and they must always be prepared to prevent hazards.

Operator negligence is the most frequent reason for boating accidents, according to US Coast Guard (USCG) recreational boating statistics from 2019. Inattentiveness on the part of the operator can result in crashes, people falling overboard, and slip-and-fall incidents on board, all of which can result in life-threatening injuries.

The greatest places to find more about any potential local risks are marinas and local boaters. Check any nearby marine charts as well to learn about potential dangers and how to avoid them.

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Decrease

The mathematical relationship between heat, internal energy and work done by the system is given as:

△U = Q + W

where △U is the change in the internal energy

W is the workdone by the system

Q is the heat energy in the system

Since the workdone by the system is negative, when a system does work, there is a depletion in the amount of energy possessed by the system.

Due to this loss of energy by the system as a result of the workdone, the internal energy decreases.

Answer:

[5710 RPM]

Explanation:

Answer:

here

Explanation:

Law of inertia states that a body remains in a position of rest or motion along a straight line unless an external force is applied..

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Answer:

A: The distance light travels in one year

Answer:

7.07 hours

Explanation:

divide the distance by the speed

so in this case, divide 672 by 95

Answer:

(A). The force acting on the rocket is mg.

(B). The initial upward acceleration of the rocket is 6.2 m/s²

Explanation:

Given that,

Mass of rocket = 5 kg

Force = 80 N

Time = 4 sec

(A). We need to draw the figure

The force acting on the rocket at each of the intervals is shown in figure.

The force acting on the rocket is mg.

(B). We need to calculate the initial upward acceleration of the rocket

Using balance equation

\(ma=F-mg\)

\(a=\dfrac{F-mg}{m}\)

Put the value in the equation

\(a=\dfrac{80-5\times9.8}{5}\)

\(a=6.2\ m/s^2\)

Hence, (A). The force acting on the rocket is mg.

(B). The initial upward acceleration of the rocket is 6.2 m/s²

The magnification is doubled when 10x oculars are used instead of 5x in our microscope with the same objectives.

When multiple lenses are lined together, the overall magnification can be calculated by multiplying the individual magnifications of each lens.

M = M1 × M2 × M3 × ... × Mn

where M is the overall magnification and M1, M2, M3, ..., Mn are the magnifications of the individual lenses.

Let M be the magnification of the objective, then the overall magnification,

when 5x ocular is used,

M1 = M × 5

M1 = 5M

when 10x ocular is used

M2 =  M × 10

M2 = 10M

Therefore, the magnification is doubled when 10x ocular is used instead of 5x in our microscope with the same objectives.

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the answer is ( True ) .

the current is the same in series circuits .

Answer:

Diurnal motion, apparent daily motion of the heavens from east to west in which celestial objects seem to rise and set, a phenomenon that results from the Earth's rotation from west to east. The axis of this apparent motion coincides with the Earth's axis of rotation.                    Retrograde motion is an APPARENT change in the movement of the planet through the sky. It is not REAL in that the planet does not physically start moving backwards in its orbit. It just appears to do so because of the relative positions of the planet and Earth and how they are moving around the Sun.