when an apple is resting on top of a table, how many force pairs (number of pairs not individual forces)act on the apple?

Answer:

They have the same rate of motion.

Explanation:

Electromagnetic radiation is a type of energy that is commonly known as light. Generally, light travels in waves, and all electromagnetic radiation travels at the same speed, which is about 3.0 × 108 ms− 1 through a vacuum.

Answer:

\(0.361\ \text{m}\)

Explanation:

\(f_s\) = Frequency of source = 375 Hz

\(\Delta f\) = Difference between the maximum and minimum sound frequencies = 2.75 Hz

v = Speed of sound in air = 343 m/s

T = Time period = 1.8 s

\(v_m\) = Maximum speed of the microphone

We have the relation

\(\Delta f=2f_s\dfrac{v_m}{v}\\\Rightarrow v_m=\dfrac{\Delta fv}{2f_s}\\\Rightarrow v_m=\dfrac{2.75\times 343}{2\times 375}\\\Rightarrow v_m=1.26\ \text{m/s}\)

Amplitude is given by

\(A=\dfrac{v_mT}{2\pi}\\\Rightarrow A=\dfrac{1.26\times 1.8}{2\pi}\\\Rightarrow A=0.361\ \text{m}\)

The amplitude of the simple harmonic motion is \(0.361\ \text{m}\).

Answer:

The answer is 144kg to 3s.f

Explanation:

convert cm to m

48/100=0.48

V=L³

V=0.48³

V=0.110592m³

\(density = \frac{mass}{volume} \)

1300=m/0.110592

m=1300×0.110592

M=144Kg o 3s.f

The spring constant of the ideal massless spring is approximately option c- 24.1 N/m.

The spring constant, denoted by "k," is a measure of the stiffness or rigidity of a spring. It defines the relationship between the force applied to a spring and the resulting displacement or deformation of the spring from its equilibrium position.

The period (T) of a simple harmonic oscillator is related to the spring constant (k) and the mass (m) of the object attached to the spring by the equation:

T = 2π√(m/k)

Weight of the object (W) = 2.450 N

Period (T) = 0.903 s

Acceleration due to gravity (g) ≈ 9.8 m/s²

Calculating the mass (m):

m = W/g = 2.450 N / 9.8 m/s² ≈ 0.25 kg

Calculating the spring constant (k):

k = (4π² * 0.25 kg) / (0.903 s)² ≈ 24.1 N/m

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The battery is 3 volts and the resistor is 100 ohms. The ammeter has a fuse that blows when you try to put too much current through it, like more than 10 amps. The current through the ammeter is 0.03 amps.

In order to determine the current through the ammeter, we can use Ohm's law, which states that current (I) is equal to voltage V divided by resistance (R), Or I= V/R.In this case, the voltage of the battery is 3 volts and the resistance of the resistor is 100 ohms. therefore the current through the circuit is :I = V/R I = 3/100 I = 0.03 amps.

Since the ammeter has a fuse that blows when the current exceeds 10 amps and the current in this circuit is only 0.03 amps, there is no risk of blowing the fuse. The ammeter will simply measure the current flowing through the circuit, which is 0.03 amps.

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Answer:

c

Explanation:

trust

Answer: I thinks it‘s the feathers

Explanation:

Bc feathers are warm and the hollow bones are to make the bird lighter so it can fly, the chest muscles don’t make heat, and the air sacs are probably for storing air

Answer:

Approximately \(5.76 \times 10^{-18}\; {\rm J}\) (by the external force that moved the electron.)

Explanation:

Let \(q\) denote the magnitude of a charge in an electric field of magnitude \(E\). The magnitude of the electrostatic force on that charge would be:

\(F = q\, E\).

In the electric field in this question, the magnitude of the electric force on the electron would be:

\(\begin{aligned}F &= q\, E \\ &= 1.6 \times 10^{-19}\; {\rm C} \times 600\; {\rm N \cdot C^{-1}} \\ &= 9.6 \times 10^{-17} \; {\rm N}\end{aligned}\).

Moving the electron to the other plate would thus require an external force of \(9.6 \times 10^{-17}\; {\rm N}\).

This force needs to be exerted over a distance of \(6.0\; {\rm cm}\) (\(6.0 \times 10^{-2}\; {\rm m}\).) The direction of the motion is the same direction as that of the external force. Thus, the work that needs to be done would be:

\(\begin{aligned}W &= F\, s \\ &\approx 9.6 \times 10^{-17}\; {\rm N} \times 6.0 \times 10^{-2}\; {\rm m} \\ &\approx 5.76 \times 10^{-18}\; {\rm J}\end{aligned}\).

Answer:

Im pretty sure its kingdom

Explanation:

I have a test with the same question and I got it right putting the answer as kingdom.

Set up the system under static equilibrium conditions. That is, there is no net torque acting on the system.

(a) The youngster, who weighs 600 N, moves x steps away from point A in a direction toward the right. Below is a diagram of a free body.By assuming zero positive clockwise torque about A

A =(600N)(x)+(300N)(2.50m)-F B(5.0m) 0=600x+750N cdot m 5F B 5F B=600x + 750N cm F B=120x+150N cm

0=600x+750N⋅m−5F B 5F B = 600x+ 750N m F B = 120x + 150N m

Additionally, by applying positive clockwise torques to B

sum B = F A(5.0 m) -(300 m)(2.50 m) -(600 m)(5.0 m -x) 5F A = 3750; N cm -600x; F A = 750; N cm -120x; 0=5F A -750; N cm -3000; N cm + 600x; B = F A (5.0m), (300N), (2.5m), (600N), (5.0m x), 0 = 5F A 750N m 3000N m + 600x 5F A = 3750N m 600x F A = 750N m 120x

Complete question is:

A uniform aluminum beam 9.00 m long, weighing 300 N, rests symmetrically on two supports 5.00 m apart (Fig. E11.12). A boy weighing 600 N starts at point A and walks toward the right.

(a) In the same diagram construct two graphs showing the upward forces FA and FB exerted on the beam at points A and B, as functions of the coordinate x of the boy. Let 1 cm = 100 N vertically, and 1 cm = 1.00 m horizontally

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Answer:

8550 Joules of energy.

Explanation:

                                                                                             = -8550 J

Answer:

Abiotic referfers to non-living and biotic factors are living or once living

Explanation:

The ball must be thrown down with a velocity of 14 meters per second in order to bounce 10 meters higher than its original level, neglecting any energy losses in striking the ground.

To determine the speed at which a ball must be thrown down to bounce 10 meters higher than its original level, we can use the principle of conservation of energy. Neglecting energy losses due to air resistance and assuming an idealized situation, we can equate the potential energy gained during the bounce to the kinetic energy of the ball before it hits the ground.

The potential energy gained by the ball during the bounce is equal to the gravitational potential energy at the new height, which can be calculated as mgh.

where

m = mass of the ball,

g = acceleration due to gravity (approximately 9.8 m/s²)

h = height gained (10 meters in this case).

The kinetic energy of the ball just before it hits the ground is given by (1/2)mv²,

where

v = velocity of the ball.

Equating these two energies, we have:

mgh = (1/2)mv²

Canceling out the mass (m) from both sides of the equation, we get:

gh = (1/2)v²

Simplifying further, we have:

v = √(2gh)

Substituting the values of g (9.8 m/s²) and h (10 meters), we can calculate the velocity (v):

v = √(2 * 9.8 * 10) ≈ √(196) ≈ 14 m/s

Therefore, the ball must be thrown down with a velocity of approximately 14 meters per second in order to bounce 10 meters higher than its original level, neglecting any energy losses in striking the ground.

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Answer:

top to 2\

next to top

then to up one

next to up

Explanation:

Hi there!

We can use the conservation of momentum for a perfectly inelastic collision to solve.

\(m_1v_1 + m_2v_2 = v_f( m_1+ m_2)\)

m1, v1 = mass and velocity of bullet (0.035 kg and ? m/s respectively)

m2, v2 = mass and velocity of block (5 kg and 0 m/s respectively)

vf = combined final velocity (8.6 m/s)

Plug in the givens and solve:

\(0.035 (v_1) + 5(0) = 8.6(0.035 + 5)\\ \\ 0.035v_1 = 43.301\\ \\ v_1 = \frac{43.301}{0.035} = \boxed{1237.17 \frac{m}{s}}\)

The statement ''a steady-flow system involves changes with time anywhere within the system or at the system boundaries'' is false. because a steady-flow system is one in which the properties of the fluid (such as temperature, pressure, and velocity) at any given point within the system do not change with time.

However, this does not mean that there cannot be changes at the system boundaries. For example, mass and energy may flow into or out of the system through its boundaries, but the properties of the fluid within the system remain constant.

In summary, a steady-flow system does not involve changes with time within the system, but it may involve changes at the system boundaries. This is because the steady-flow assumption applies only to the fluid properties at any given point within the system, not necessarily to the overall behavior of the system.

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Answer:

C. Hawaiian

Explanation:

Ego's father and all male relatives in his generation have the same kin name. Ego's mother and all female relatives in her generation are referred to by the same kin term.

Similarly, all brothers and male cousins are linked by giving them the same kin term. Sisters and all female cousins are also referred to by the same term.  

Answer:

Basic

Coal

Acid

Geothermal

Scrubber

Allowance

Carpool

Conservation

Ecosystem

Nutrients

Water

Sun

Answer:

B. Atoms are altered in both processes

Explanation:

Answer: B. Atoms are altered in both processes

Explanation:

Answer:if 1 m = 100 cm then there should be 200 cm in m^2

Explanation:

The capacitance of a parallel plate capacitor can be calculated using the formula C = ε₀ * (A / d), where C is the capacitance, ε₀ is the permittivity of free space (approximately 8.85 × 10^(-12) F/m), A is the plate area, and d is the plate separation distance.

Given that d = 3 mm (which is equal to 0.003 m), L = 0.75 m, and W = 0.5 m, we can calculate the capacitance as follows:

C = ε₀ * (A / d) = (8.85 × 10^(-12) F/m) * (0.75 m * 0.5 m) / 0.003 m

C ≈ 1.477 × 10^(-9) F.

Therefore, the capacitance of the parallel plate air capacitor is approximately 1.477 nanofarads (nF).

b) To calculate the amount of charge the capacitor can hold when connected to a 12V battery, we can use the formula Q = C * V, where Q is the charge, C is the capacitance, and V is the voltage.

Given that the capacitance C is 1.477 × 10^(-9) F and the voltage V is 12V, we can calculate the charge Q as follows:

Q = C * V = (1.477 × 10^(-9) F) * 12V

Q ≈ 1.7724 × 10^(-8) C.

Therefore, the capacitor can hold approximately 1.7724 × 10^(-8) coulombs of charge when connected to a 12V battery.

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Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. ... In essence, energy can be converted from one form into another.

So , the answer is true

If two vectors are represented both in magnitude and direction by the two adjacent sides of a triangle taken in an order, then their resultant is given by the third side taken in the reverse order.

Resultant vector :

                         R = sqrt of A^2 + B^2 + 2ABcosθ

given :

          A = 200 units

          B = 300 units

          θ = 30 degrees

∴ R = sqrt of 200^2 + 300^2 + 2(200)(300)cos35

the answer is 477.805656

Answer:

39.44 °C

Explanation:

To convert from °F to °C, we need to use the following equation:

Then, replacing F by 103 °F, we get:

Therefore, the temperature on the Celsius scale is 39.44 °C

Answer:

hydrogen bonding between H atoms.

Explanation:

The acceleration of the block is 6.4 m/s².

To calculate the acceleration of the block, we need to consider the forces acting on it.

The applied force is 40 N, and since it is the only horizontal force in the direction of motion, it is the net force acting on the block.

The frictional force opposing the motion is 8 N.

The acceleration, we can use Newton's second law, which states that the net force acting on an object is equal to its mass multiplied by its acceleration (F = ma).

The net force is the difference between the applied force and the frictional force:

40 N - 8 N = 32 N.

Now, we can plug the values into Newton's second law:

32 N = 5 kg × a.

Solving for the acceleration (a), we get

a = 32 N / 5 kg

a = 6.4 m/s².

Therefore, the acceleration of the block is 6.4 m/s².

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Answer:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

Explanation:

Given,

Object distance, u=25cm

Focal length, f=20cm

From mirror formula

f

1

​

=

v

1

​

+

u

1

​

−20

1

​

=

v

1

​

−

25

1

​

⇒

v

1

​

=−

20

1

​

+

25

1

​

v=100cm

The image will be real, inverted magnified

The flash and report method is a simple and common technique used to measure the speed of sound. In this method, an observer measures the time between seeing a flash, such as from a gunshot or a firecracker, and hearing the corresponding sound. The observer is usually at a known distance from the source of the flash and sound.

To perform the experiment, the observer stands at a fixed distance away from the source of the flash and sound. When the flash is seen, they start a stopwatch or use any other timing device. Once they hear the sound, they stop the timer and note the time difference between the flash and the sound. This time difference is the time it takes for the sound to travel from the source to the observer.

The speed of sound can then be calculated using the formula: speed of sound = distance / time taken. The distance between the observer and the source is divided by the time difference recorded to find the speed of sound in the medium (usually air).

It is essential to ensure that the distance between the source and the observer is accurate and that the observer's reaction time is considered when measuring the time difference. External factors such as temperature, humidity, and altitude also affect the speed of sound and should be taken into account.

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The probable question may be:

Discuss the measurement of the speed of sound using the flash and report method?

Answer:

The velocity of the pin will be 6.26 m/s in the right direction.

Explanation:

Let's use the momentum conservation equation.

\(p_{i}=p_{f}\)

Initially, we have:

\(p_{i}=m_{b}*v_{ib}\)

Where:

Now, the final momentum will be:

\(p_{f}=m_{b}*v_{fb}+m_{p}*v_{fp}\)

Where:

Then, using the equation of the conservation we have:

\(m_{b}*v_{ib}=m_{b}*v_{fb}+m_{p}*v_{fp}\)

\(6*3.5=6*2.77+0.7*v_{fp}\)

\(6*3.5=6*2.77+0.7*v_{fp}\)

\(v_{fp}=6.26 m/s\)

Therefore the velocity of the pin will be 6.26 m/s in the right direction.

I hope it helps you!

Answer: 420 km

Explanation:

120 per hour, 3.5 hours

120 x 3.5 = 420