Sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motionstays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
A Unbalanced force
B Newton's Second Law of Motion
С Newton's Third Law of Motion
D Newton's First Law of Motion​

The mass number of an element is the total number of protons and neutrons in the nucleus of the atom.

Mass number is the total number of protons and neutrons in an atomic nucleus with symbol: A.

An atom is the smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.

The atom of an element is made up of the following subatomic particles;

The sum of the proton and neutron in the atom's nucleus is the atom's mass number.

Learn more about atoms at: https://brainly.com/question/18803094

#SPJ1

The United States still makes use of the form of measure that includes the units: feet, miles, and gallons while others make use of yards, kilometers and liters

This refers to the classification that describes the nature of the information within the values assigned to variables.

Therefore, we can see that the United States still makes use of the form of measure that includes the units: feet, miles, and gallons while others make use of yards, kilometers and liters

Read more about measure of scale here:

https://brainly.com/question/2516315

#SPJ1

Answer:

66.67 km/h

Explanation:

20 + 30 = 50

50/.75 = 66.67

Given,

The force applied by Tory, F=60 N

Mechanical advantage after adding the second pulley, MA=2

As Tory applies 60 N of force when there is only one pulley, the weight of the ball is 60 N.

Thus the output force is 60 N.

The mechanical advantage is given by,

On substituting the known values,

Thus the minimum input force tory need to apply is 30 N

To find the mass of the object, we can use the formula for kinetic energy:

Kinetic energy (KE) = (1/2) * mass * velocity^2

Given that the kinetic energy is 426 J and the velocity is 13 m/s, we can rearrange the equation to solve for the mass:

mass = (2 * KE) / (velocity^2)

Substituting the given values:

mass = (2 * 426 J) / (13 m/s)^2

mass = (2 * 426 J) / (169 m^2/s^2)

mass = 852 J / 169 m^2/s^2

mass = 5.04 kg

Therefore, the mass of the object is 5.04 kg.

The measure of the indicated angle to the nearest degree is Sin 42°.

An angle is formed when two immediate traces or rays meet at a not-unusual endpoint.

The names of primary angles are Acute angle, Obtuse perspective, proper attitude, straight attitude, reflex angle, and full rotation. A perspective is a geometrical form shaped by using joining rays at their endpoints. An angle is normally measured in stages. there are various varieties of angles in geometry.

A right triangle or proper-angled triangle, or greater officially an orthogonal triangle, formerly called a rectangle triangle, is a triangle wherein one angle is a proper angle or facets are perpendicular. The relation among the perimeters and different angles of the proper triangle is the premise for trigonometry.

calculation:-

perpendicular = 43

hypoteneuse = 64.4

Sin θ = perpendicular / hypoteneuse

            = 43 / 64.4

Sin θ   =   0.66770

Sin θ = 41.889

Sin θ = 42° ( nearest degree)

Sin α = 90 - 42

        = 48°

Learn more about angles here:-https://brainly.com/question/26262923

#SPJ1

To find the frequency of the wave, we need to determine the number of wave crests passing a given point per second.

Given:

Number of wave crests = 7

Time taken = 10 s

Distance between wave crests = 2.43 m

We can calculate the frequency using the formula:

Frequency (f) = Number of wave crests / Time taken

f = 7 / 10

f = 0.7 Hz

Therefore, the frequency of the wave is 0.7 Hz.g

thanks

Answer:

The magnetic field is 1.16 T.  

Explanation:

speed, v = 10% of speed of light = 3 x 10^7 m/s

diameter, d = 54 cm

radius, r = 0.27 m

charge, q = 1.6 x 10^-19 C

mass, m = 1.67 x 10^-27 kg

Let the magnetic field is B.

The centripetal force is balanced by the magnetic force.  

\(qvB=\frac{mv^2}{r}\\\\B =\frac{mv}{qr}\\\\B =\frac{1.67\times 10^{-27}\times 3\times 10^{7}}{1.6\times 10^{-19}\times 0.27}\\\\B =1.16 T\)

Pressure = (force) divided by (area)

But force and area are both derived units themselves.

-- Force = (mass) times (acceleration)

But acceleration is a derived unit itself.

Acceleration = (length) divided by (time squared)

So force = (mass) · (length / time squared)

-- Area = (length squared)

So pressure = (mass · length / time-squared) / (length-squared)

Pressure = (mass) / (length · time-squared)

That sure looks to me like it's derived from a bunch of other stuff.

Answer: kfhfjffhfjfvfh.

Explanation: hfhvfffhfhf.

Answer:

276.12 pC

Explanation:

We are given that

Area,A=\(2.6 cm^2=2.6\times 10^{-4}m^2\)

Where \(1 cm^2=10^{-4} m^2\)

\(d=0.25 mm=0.25\times 10^{-3} m\)

\(1mm=10^{-3} m\)

Potential difference, V=30  V

We have to find the charge on the capacitor when the plates are pulled to a separation of 0.55 mm.

We know that

Charge ,\(Q=\frac{\epsilon_0 A V}{d}\)

Where \(\epsilon_0=8.85\times 10^{-12}\)

Using the formula

\(Q=\frac{8.85\times 10^{-12}\times 2.6\times 10^{-4}\times 30}{0.25\times 10^{-3}}\)

\(Q=2.7612\times 10^{-10} C\)

\(Q=276.12p C\)

\(1 pC=10^{-12} C\)

When the plates are now pulled to a separation of 0.55 mm.Then, the charge on the plates remain same because the  battery has been disconnected.

Therefore, charge on the capacitor=276.12 pC

Answer:

Work done in moving an object in circular path is always 0 J

Explanation:

Work doen on any moving object, in general, is given by the following formula:

W = F d Cos θ

where,

W = Work Done

F = Force applied

d = Distance covered

θ = Angle between the direction of motion and the force applied

When the object is moving in a circular path the direction of its motion is always tangential to the circular path. While, the force applied on the object is the centripetal force. And centripetal force is always directed towards the center of the circular path. Therefore, the force and direction of motion are always perpendicular to each other. This means θ = 90°

Therefore,

W = F d Cos 90° = F d(0)

W = 0 J

If you transmitted radio signal to the Moon when it is 379,000 km from Earth and waited to receive the echo, you would wait approximately 2.52 seconds.

Radio waves are the type of electromagnetic radiation with longest wavelengths in electromagnetic spectrum, with frequencies of 300 gigahertz and below.

The time it takes for a radio signal to travel from Earth to the Moon and back depends on distance between the two objects and speed of light, which is approximately 299,792,458 meters per second.

So, Time = (2 x distance) / speed of light

distance is the distance between Earth and the Moon, which is approximately 379,000 km or 379,000,000 meters.

Time = (2 x 379,000,000) / 299,792,458

Time = 2.52 seconds

Therefore, if you transmitted a radio signal to the Moon when it is 379,000 km from Earth and waited to receive the echo, you would wait approximately 2.52 seconds.

To know more about radio waves, refer

https://brainly.com/question/69373

#SPJ1

Answer:

Endurance, or aerobic

Strength, or resistance training

Balance

Flexibility

Explanation:

Answer:

Walking. Walking is simple, yet powerful. It can help you stay trim, improve cholesterol levels, strengthen bones, keep blood pressure in check, lift your mood, and lower your risk for a number of diseases (diabetes and heart disease, for example).

The stage of sleep which is marked by long slow delta brain waves is stage 4 and is therefore denoted as option B.

This is referred to as a sedentary state of mind and body and it is characterized by altered consciousness, reduced muscle activity and reduced interactions with surroundings.

In the deepest level of sleep, stage IV sleep it has been observed that it consists of low frequency and high-amplitude fluctuations called delta waves and the sequence from drowsiness to deep stage IV sleep usually takes about an hour thereby making it the correct choice.

Read more about Sleep here https://brainly.com/question/4119396

#SPJ1

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

linkcutter.ga/gyko

Answer:

Theres no given?

Explanation:

Well, whatever.

I observed the shift of their sunset time.

Examples like:

January to June = their sunset time increased while

July to December = their sunset time decreased

The characteristic of a seismic wave that the motion shown by the sensor on the seismometer represents is the amplitude of the seismic wave.

Seismic waves are waves that transport energy away from the focus of an earthquake, and they cause the ground to shake. Seismometers are instruments that measure the shaking of the Earth caused by seismic waves. The black arrows in the picture show the relative motion of the sensor on the seismometer. The sensor moves back and forth as the ground shakes, and the amplitude of this motion represents the intensity of the seismic wave.The amplitude of a seismic wave is a measure of the strength or energy of the wave. It is the maximum displacement of the ground from its resting position during the passage of the wave. The greater the amplitude of the seismic wave, the stronger the shaking of the ground and the more damage it can cause. The amplitude of a seismic wave is usually measured in millimeters or centimeters.In summary, the motion shown by the sensor on the seismometer represents the amplitude of the seismic wave. This is an important characteristic of a seismic wave as it determines the intensity of the shaking and the potential damage that the earthquake can cause. Seismologists use this information to study earthquakes and to understand their effects on the Earth.

for such more questions amplitude

https://brainly.com/question/3613222

#SPJ11

The metal with the highest heat capacity between metals A.25 B.35 C.10 and D.15 is metal A.

Heat capacity is the amount of heat required to raise the temperature of a substance by one degree Celsius. Metal A has a heat capacity of 400 J/kg°C, which means that it takes 400 joules of heat to raise the temperature of one kilogram of metal A by one degree Celsius.

Metal B has a heat capacity of 285.7 J/kg°C, metal C has a heat capacity of 1000 J/kg°C, and metal D has a heat capacity of 666.7 J/kg°C. Therefore, metal A has the highest heat capacity of the four metals.

Metal A's high heat capacity means that it can absorb a lot of heat without its temperature changing very much. This makes metal A a good material for things like heat sinks and thermal insulation.

Find out more on heat capacity here: https://brainly.com/question/16559442

#SPJ1

The heat released in the whole process in which a sample of water is cooled and frozen is 4.64 * 10⁸ J.

The problem is to be divided into two steps. This process releases a certain quantity of heat,

Step 1) Solidification of the water at 0°C into ice.

Q = m* Lf

where,

m is the mass of the water

Lf stands for the latent heat of ice fusion

Substituting numbers, we find

Q₁ = (1271 kg)* (334 kJ/kg) = 424514 kJ = 4.2* 10⁸ J

step 2) The water became ice, now we need to cool it down to -36°C . This process releases a certain quantity of heat, which is

Q₂ = m* Cs* ΔT

where,

m is the mass of ice

Cs is the specific heat of ice

ΔT is the variation of temperature

By placing the numbers in the formula, we have,

Q₂ = (1271 kg)* (2050 J/kg K) (-17-0) = 44294350 J = - 0.44 * 10⁸ J

The negative sign means the heat is released by the system.

Thus, the overall process produces heat that is

Q = Q₁ + Q₂ = 4.2* 10⁸ J + 0.44 * 10⁸ J = 4.64 * 10⁸ J

To know more about heat:

https://brainly.com/question/9833287

#SPJ4

Let the circumference of the circle be 10L.

A moves at 10L/2 = 5L per hour

B moves at 10L/5 = 2L per hour

Therefore it takes 10L/(5L+2L) = 10/7 hours

The object distance of the lens is 10 cm and the image distance of the lens is 30 cm.

The object and image distance formed by the lens is calculated by applying the following lens formula.

v + u = 40 ------- (1)

v/u = 3 ------------ (2)

v = 3u

Substitute v into equation (1);

3u + u = 40

4u = 40

u = 40/4

u = 10 cm

The image distance = 3u

= 3 x 10 cm

= 30 cm

Thus, the object distance is 10 cm and the image distance is 30 cm.

Learn more about image distance here: https://brainly.com/question/12629638

#SPJ1

The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

To learn more about acceleration

https://brainly.com/question/2303856

#SPJ8

Explanation:Beta Rays are not Electromagnetic Waves

Beta rays also known as beta radiation is obtained through the emission of an electron. Beta rays are not electromagnetic waves because they are charged particles and are capable of getting deflected by the magnetic field.

Microwaves are a form of "electromagnetic" radiation; that is, they are waves of electrical and magnetic energy moving together through space. Electromagnetic radiation spans a broad spectrum from very long radio waves to very short gamma rays. ... But the most common consumer use of microwave energy is in microwave ovens.

Visible light is carried by photons, and so are all the other kinds of electromagnetic radiation like X-rays, microwaves and radio waves. In other words, light is a particle.

So the answer is sound.

The sound wave is not an electromagnetic wave

In terms of science, electromagnetic radiation is made up of electromagnetic field waves that travel over space while carrying electromagnetic radiant energy and velocity. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves.

In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

Given data ,

Let the electromagnetic wave be represented as A

Now , when A = microwaves

Microwaves are waves of electrical and magnetic energy traveling across  radio waves and infrared radiation on the electromagnetic spectrum combined. There is a wide range of electromagnetic radiation, from very lengthy radio waves to very brief gamma rays.

And , when A = x-rays

X-rays are high-frequency, and thus high-energy, electromagnetic radiation

They are found to reside between ultraviolet radiation and gamma rays on the electromagnetic spectrum.

X-rays are more energetic because they have shorter wavelengths. When discussing X-rays, we frequently refer to their energy rather than its wavelength.

Now , the sound waves are not electromagnetic waves as sound waves are examples of mechanical waves

Hence , sound waves are not electromagnetic waves

To learn more about electromagnetic waves click :

https://brainly.com/question/25847009

#SPJ6

Answer:

5.097 m

Explanation:

This involves Bernoulli's equation, so we will use;

P + ρgh + ½ρv² = constant

Applying this equation to both points, we have;

P_i + ρ_water*g*h_i + ½*ρ_water*v_i² = P_f + ρ_water*g*h_f + ½*ρ_water*v_f²

Since open to air, P_i and P_f will cancel out.

Also, v_i = 0 and h_f = 0

ρ_water = 1 g/ml

v_f is given as 10 m/s

h_i is depth of the hole below the water surface.

Thus, plugging in values, we have;

1*9.81*h_i + 0 = 0 + ½*1*10²

9.81h_i = 50

h_i = 50/9.81

h_i = 5.097 m

The water surface is 5.10 m below the hole.

Given data:

The diameter of circular hole is, d = 6.00 mm = 0.006 m.

The speed of water escaping through hole is, v = 10 m/s.

Here, we will apply the concept of kinematic equation of motion. As per the third kinematic equation of motion,

\(v^{2}=u^{2}+2gh\)

here,

u is the initial speed of water.

g is the gravitational acceleration.

h is the vertical distance of hole from the water surface..

Solving as,

\(10^{2}=0^{2}+2(9.8)h\\\\100 = 19.6h\\\\h =5.10 \;\rm m\)

Thus, we can conclude that the water surface is 5.10 m below the hole.

For more details, refer to the link:

https://brainly.com/question/21674779

Answer:

Explanation:

Neither do we. It's just a disconnected statement devoid of any context.

From English studies, an "an" leading the phrase means the following word starts with a vowel.

If the object is moving with varying speed, then the blank could be filled with

"unbalanced"

or

"accelerating"

If the object is dropping, then the blank could be filled with a frictional air resistance acting

"upward"

If the object is wiggling, try

"alternating"

If the object is flying, try

"aerodynamic"

I'm sure I could think of others , but it seems a waste of time guessing.

The charge q(t) on the capacitor would be, \(q(t)= 0.25c(1-e^{-t/0.04s})\)

And the current I(t) in the circuit will be,\(I(t)= 0.25mA(1-e^{-t/0.04s})\)

To find the charge q(t) on the capacitor at any time t, we can use the equation for the charge on a capacitor in an RC circuit:

\(q(t)= Q_{max} (1-e^{-t/RC})\)

where Qmax is the maximum charge on the capacitor, R is the resistance, C is the capacitance, and t is time.

To find Qmax, we can use the equation for the maximum charge on a capacitor in an RC circuit:

Qmax = E × C

where E is the electromotive force.

So, we have:

Qmax = 100 V × 10⁻⁴F = 0.01 C

Using the given values of R and C, we have:

R*C = 400 ohms × 10⁻⁴F = 0.04 s

Substituting these values into the equation for q(t), we get:

\(q(t)= Q_0.01(1-e^{-t/0.04C})\)

To find the current I(t), we can use Ohm's law and the equation for the charge on a capacitor:

I(t) = (1/R) × d(q(t))/dt

where d(q(t))/dt is the derivative of q(t) with respect to time.

Taking the derivative of q(t), we get:

\(dq(t)/dt= 0.01C (1-e^{-t/0.04C})\)

Substituting this into the equation for I(t), we get:

\(I(t)= (1/400ohm)(0.01/0.04s) (1-e^{-t/0.04C})\)I

Simplifying, we get:

\(I(t)= 0.25mA(1-e^{-t/0.04C})\)

Therefore, the charge q(t) on the capacitor is:

\(q(t)= 0.25c(1-e^{-t/0.04s})\)

And the current I(t) in the circuit is:

\(I(t)= 0.25mA(1-e^{-t/0.04s})\)

To know more about current

https://brainly.com/question/31277543

#SPJ1