find the weight of a car on a 12 degree slope if the force required to push the car up the hill is 650 lbs g

Explanation:

Given parameters:

Distance hopped  = 84m

Displacement  = 84m due east

Time  = 7s

Unknown:

Speed of kangaroo  = ?

Velocity of kangaroo  = ?

Solution:

To solve this problem,

    Speed  = \(\frac{distance}{time }\)   = \(\frac{84}{7}\)  = 12m/s

  Velocity  = \(\frac{displacement}{time}\)   = \(\frac{84}{7}\)   = 12m/s due east

Answer:

.3m

Explanation:

Apex

0.3 is right i just got it right on the test for A P E X :D

Answer:

Explanation:

A) E) When the light hits a square on the CCD charge is produced

B) A) Starting in one corner the charge on each square is moved off the CCD

C) D) The charges on each square are converted into a digital signal

D) B) Light enters the camera

E) C) That signal can be stored or sent to a computer or other device

b. The delay between taking one photograph with a digital camera and taking the next photograph is due to the time it takes to capture the image and process it into a digital signal. This process includes the capturing of the light entering the camera, the conversion of the charges on each square of the CCD into a digital signal, and the storage or sending of the signal to a computer or other device.

Answer:

Kelvin to Celsius: C = K - 273 (C = K - 273.15 if you want to

Answer:

yeah it may be a risk factor

Explanation:

B. Doubling The Distance Between Capacitor Plates Will Reduce The Capacitance Two-Fold.  

Capacitor is an electrical device used to store energy. It is composed of two conducting plates separated by an insulating material called the dielectric. When a voltage is applied to the two plates, an electric field forms between them, storing energy in the form of an electrical charge. Capacitors are used in a variety of applications, such as in filter circuits, timing circuits, and power supply circuits.

The capacitance of a capacitor is directly proportional to the area of the plates and inversely proportional to the distance between the plates. Therefore, when the distance between the plates is doubled, the capacitance is halved.

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Answer:

0.748seconds

Explanation:

s = 1/2 *g*t^2

2.8 = 1/2 * 10* t^2

5.6 = 10 * t^2

0.56 = t^2

t = √0.56

t = 0.7483seconds

All components of the velocity vector are zero for t = 0, the particle is at rest for t = 0.

For what values of t is the particle at rest?

The position of a particle moving in the xy-plane is given by the parametric equations r = (3t) and v = (2t, 3t², 12t). To find for what values of t the particle is at rest, we need to find when the velocity vector (v) is equal to zero.

The velocity vector v is given by (2t, 3t², 12t). For the particle to be at rest, all components of the velocity vector must be equal to zero.

1. For the x-component (2t) to be zero: 2t = 0. Solving for t, we get t = 0.

2. For the y-component (3t²) to be zero: 3t² = 0. Solving for t, we get t = 0.

3. For the z-component (12t) to be zero: 12t = 0. Solving for t, we get t = 0.

Since all components of the velocity vector are zero for t = 0, the particle is at rest for t = 0.

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Answer:

For metric-system conversions, follow this method: Sound travels at about 340 m/s, so multiply the number of seconds you counted by 340, and you'll know how many meters away lightning struck. A three-second count, then, would place the lightning strike about 1,020 m away, or roughly 1 km.

Explanation:

hope it hep and if it doesnt sorry

The distance struck by the lighting flashes is 680 m.

The given parameters;

The distance struck by the lighting is calculated by applying the principle of echo as follows;

\(v = \frac{2d}{t} \\\\2d = vt\\\\d = \frac{vt}{2} \\\\d = \frac{340 \times 4}{2} \\\\d = 680 \ m\)

Thus, the distance struck by the lighting flashes is 680 m.

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Answer:

4

Explanation:

Frequency (MHz) = C / (2 * (mm/µs)), where C is the velocity of propagation in the PZT material.

In the given formula, the frequency (MHz) is determined by dividing the velocity of propagation in the PZT material (mm/µs) by twice the value of the wavelength (mm). The velocity of propagation, denoted by C, represents the speed at which mechanical waves travel through the PZT material. By dividing this velocity by twice the wavelength, we can calculate the frequency of the waves in megahertz. The wavelength is inversely proportional to the frequency, meaning that as the wavelength decreases, the frequency increases. This formula allows us to relate the velocity, wavelength, and frequency of mechanical waves in the PZT material.

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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The speed of the coin when dropped from the top of a building, using free fall formula after 2 and 3 seconds are, 19.6 m/s and 29.4 m/s.

The speed of an object in free fall can be determined by multiplying the acceleration due to gravity (which is approximately 9.8 m/s²) by the time elapsed. In this case, after 2 seconds, the coin will have fallen a distance of 19.6 meters and will be traveling at 19.6 m/s. Similarly, after 3 seconds, the coin will have fallen a distance of 44.1 meters and will be traveling at 29.4 m/s.

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Answer:

I Believe the Correct Answer is respiratory system; obtains oxygen so the energy in nutrients can be extracted.

Explanation:

Respiratory System is made for oxygen and involves the Lungs Diaphragm etc.

Please give me Brainliest!

The harmonic mode of the pipe that resonates with a 1. 1 kHz source is second harmonic.

The length of the pipe is given as 30 cm = 30/100 m = 0.3 m

Speed of light is known to be 330 m/s

Frequency of the source is given as 1.1 kHz = 1100 Hz

We know the relation between frequency, harmonic mode and length as,

vn = n v / 2 l

where,

n is number of harmonic mode

v is speed of light

l is length

vn is frequency of nth harmonic in an open pipe

Putting in the values, by making n as subject we have,

n = vn × 2 l/v = 1100 × 2 × 0.3/330 = 2

Thus, the harmonic mode of the pipe is calculated to be 2nd harmonic mode.

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The coefficient of kinetic friction between the bag and the ground is found to be 0.0251. It represents the ratio of the frictional force to the normal force acting between them.

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We must use the mechanical advantage formula to determine the length of the ramp:

Output force minus Input force equals Mechanical Advantage (MA). In this instance, the input force is the force required to hoist the object in the absence of the ramp, and the output force is the weight of the object being raised up the ramp

By dividing the length of the slope by its height, you may calculate the optimal mechanical advantage of an inclined plane. The ideal mechanical advantage of a ramp, for instance, is 3 metres 1 metre, or 3 metres, if you are loading a truck that is 1 metre high utilising it.

Basic Machines' Mechanical Advantage and Efficiency Calculated. The IMA is typically calculated as the resistance force (Fr) divided by the effort force (Fe). IMA is also equal to the product of the load's travel distance (d) and the distance over which the effort is applied (de).

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The arrow representing the acceleration acting on the astronaut pushing the wrench away from himself would point in the opposite direction of the force applied.

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. When the astronaut pushes the wrench away from himself, he applies a force in one direction. In response, the wrench exerts an equal and opposite force on the astronaut, as described by Newton's third law of motion.

The arrow representing the acceleration acting on the astronaut would point in the direction opposite to the force applied. This is because the acceleration is determined by the net force acting on the astronaut, which is in the opposite direction of the force he applied to the wrench. Therefore, the arrow indicating the acceleration would point in the direction opposite to the motion of the wrench, indicating that the astronaut is accelerating in the opposite direction.

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D. 36 in Kr

Let's analyze all the elements in Option

By looking at all the given options we can clearly see that Krypton has the highest number of electrons as compared to the given options so It is the answer. Also with the highest mass, in the given four options.

It can be easily seen in options as the Number of electrons and mass is already written in options.

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The radius of a 238Pu nucleus is approximately 7.44 femtometers. This information is useful for understanding the properties of the nucleus and its behavior in various situations, such as in nuclear reactions.

To find the radius of a 238Pu nucleus, we need to know its atomic number and mass number. 238Pu has an atomic number of 94 and a mass number of 238.
The radius of a nucleus can be calculated using the following formula:
r = r0 * A^1/3
where r0 is the radius constant, which is approximately 1.2 femtometers (fm), and A is the mass number of the nucleus.
So, for a 238Pu nucleus:
r = 1.2 * 238^1/3
r = 7.44 fm
Therefore, the radius of a 238Pu nucleus is approximately 7.44 femtometers. This information is useful for understanding the properties of the nucleus and its behavior in various situations, such as in nuclear reactions. This knowledge can also aid in designing and optimizing nuclear power sources for various applications, such as in space probes.

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The time constant of a circuit is given by the product of the resistance and the capacitance, or the inductance and the resistance, depending on the circuit.

When the resistance and inductance of a series LR circuit are both doubled, the time constant of the circuit will also change. In this case, we are dealing with a series LR circuit, so the time constant is given by:
     τ = L/R
Where τ is the time constant, L is the inductance, and R is the resistance.
When the resistance and inductance are both doubled, the new time constant can be calculated as:
    τ' = (2L)/(2R) = L/R
So the new time constant is the same as the original time constant, which is 8.0 seconds. Therefore, capacitance doubling the resistance and inductance of a series LR circuit will not change the time constant of the circuit.

Numerous electronic circuits, especially those involving AC signals, require careful design and analysis because of this link between capacitance and capacitive reactance. In filters, voltage regulators, oscillators, and other devices, capacitors are frequently employed to block DC signals while allowing AC signals to pass through. To guarantee optimal circuit operation and performance, it is essential to comprehend how variations in capacitance effect capacitive reactance.

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In an LR circuit, the time constant (τ) is given by the ratio of the inductance (L) to the resistance (R), which can be expressed as:

τ = L / R
Given that the initial time constant is 8.0 seconds, we have:
8.0 = L / R
Now, both the resistance and inductance are doubled, so the new values are 2R and 2L. The new time constant (τ') can be calculated as:
τ' = (2L) / (2R)
Since both the numerator and denominator are multiplied by 2, they cancel each other out:
τ' = L / R
Since τ = L / R, this means that the resulting time constant remains the same:
τ' = 8.0 seconds

So, after doubling both the resistance and inductance, the resulting time constant of the LR circuit remains 8.0 seconds.

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Answer:

The Alkali Metals

sodium is a member of the alkali metal family with potassium (K) and lithium (Li). Sodium's big claim to fame is that it's one of two elements in your table salt. When bonded to chlorine (Cl), the two elements make sodium chloride (NaCl).

Answer:

Explanation:

Sodium is a member of the alkali metal family, along with potassium (K) and lithium (Li). The fact that sodium is one of two elements in table salt is its main claim to fame. When bonded with chlorine (Cl), the two elements combine to form sodium chloride (NaCl).

The process of charging a conductor by bringing it near another charged object and then grounding the conductor is called Induction. The correct option is C.

The process described, in which a conductor is charged by bringing it near another charged object and then grounding the conductor, is known as induction. Induction involves the redistribution of charges within the conductor without direct contact between the two objects.

Here's how the process works: When a charged object is brought close to the conductor, the charges in the conductor are rearranged.

This occurs due to the electric field of the charged object influencing the distribution of charges within the conductor. However, the conductor itself remains electrically neutral overall.

If the conductor is then grounded, allowing it to make contact with the Earth or a large reservoir of charge, any excess charges in the conductor are neutralized or redistributed, resulting in the conductor becoming charged with the opposite polarity to that of the inducing object.

Therefore, the correct term for this process is c, induction.

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It is impossible to determine how much work this force does as the particle moves a distance \(\Delta r\hat i + \Delta  3\hat j\) without knowing more information about the other forces acting on the particle.

The work done by a force on a particle is given by the dot product of the force and the displacement of the particle:

W = F · Δr

where W is the work done, F is the force, and Δr is the displacement vector.

In this case, we are given that one of the forces is not constant and depends on location as given by F = (Bx + Cy)i. However, we do not know anything about the other forces acting on the particle. Therefore, we cannot determine the total force acting on the particle and hence we cannot calculate the work done by this force as the particle moves a distance\(\Delta r \hat i + \Delta 3\hat j\).

Therefore, the correct answer is "Impossible to determine; we know nothing about the other forces".

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Your driver's license is at risk of being cancelled if you have more than three traffic violations in one year​. The correct option is D.

The license by the central government to an individual to travel on road by his own vehicle on terms and conditions to be strictly followed.

When a driver is moving with his vehicle and come across the traffic signal, he must follow them. If he violates the traffic signals more than three times, he will get his license cancelled.

Thus, your driver's license is at risk of being cancelled if you have more than three traffic violations in one year​. The correct option is D.

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The amount of matter in a thing is measured by its mass in science. It is frequently referred to as an object's "weight," however weight and mass are not the same thing. The force imposed on an object by gravity is represented by its weight, whereas mass is a scalar quantity that remains constant regardless of the object's location.

To better comprehend mass, it is necessary to distinguish it from weight. Weight is a measure of the force imposed by gravity on an object, and it varies based on the object's location. An object, for example, weighs less on the Moon than on Earth because the Moon has less mass and thus less gravitational force. Nonetheless, the object's mass remains the same regardless of where it is located.

The kilogramme is the unit of mass in the International System of Units (SI) (kg). However, in physics, the unit of gramme (g) or atomic mass unit (u) is commonly used, which is defined as one-twelfth of the mass of a carbon-12 atom.

The mass of an object can be used to compute its kinetic energy, potential energy, and momentum in physics and chemistry. Furthermore, mass is important in Einstein's theory of general relativity, where it is related to the curvature of spacetime.

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Answer:

vf²=vi²+2a∆x

Explanation:

The third equation of motion gives the final velocity of an object under uniform acceleration given the distance traveled and an initial velocity: v 2 = v 0 2 + 2 a d . v^2=v_0^2+2ad. v2=v02+2ad. The graph of the motion of the object.

Answer:

HOPEFULLY i am correct but i say its D. Hopefully I helped!✨

Answer: It can be A or B

Explanation: In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

Answer: The force between the two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Hence, if the distance between charges is halved (charges remaining kept constant), the force between the two charges is quadrupled.

Explanation: hope i helped c;

What happens to the force between two charged particles if the distance between them is cut in fourth is that the force between the two charges is directly proportional to the product of the charges and proportional to the square of the distance between them.

Explanation:

tan ● = opposite / adjacent

tan 31.5 = 19 / F

0.613 = 19 / F

0.613F = 19

F = 31

sin ● = opposite / hypotenuse

sin 31.5 = 19 / a

0.52 = 19 / a

0.52a = 19

a = 36. 36

Using trigonometry, the base of the triangle is approximately 33.476, and the hypotenuse of the triangle is approximately 38.118.

To find the base and hypotenuse of a right triangle with one angle of 31.5 degrees and a given height of 19:

Here,

Opposite side = height = 19 (given)

Adjacent side = base (unknown)

Hypotenuse = hypotenuse (unknown)

First, let's find the base (adjacent side):

tan(θ) = opposite ÷ adjacent

tan(31.5 degrees) = 19/base

To find the base, we can rearrange the equation:

base = opposite ÷ tan(θ)

base = 19 ÷ tan(31.5 degrees)

Calculating the value:

base ≈ 33.476

So, the base of the triangle is approximately 33.476.

Now, using the Pythagorean theorem, we can write:

hypotenuse² = base² + opposite²

hypotenuse² = (33.476)² + 19²

hypotenuse ≈ 38.118

Therefore, the hypotenuse of the triangle is approximately 38.118.

Thus, base is 33.476, and hypotenuse is 38.118.

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