A truck has a speed of 14 m/s. How far will the truck go in 3 minutes? O a 18,650 meters 42 meters 4.7 meters 1640 meters 2520 meters​

The force that acts on the conductor is obtained from the calculation as  15.5 N.

We know that a magnetic field has to do with the region in space where the influence of a magnet can be felt. In this case, we have been told that;

The magnetic field of the conductor (B)= 0.75 T

The current (I) =  69 A

Length of the wire = 30 cm or 0.3 m

Let us recall the formula that says;

F = BIL

F = force on the conductor

B = magnetic field

L = length of the conductor

Thus if we substitute values;

F = 0.75 * 69 * 0.3

F = 15.5 N

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2077 m distance  it move in the x direction in 3 seconds

speed=distance/time

distance=speed × time

distance= 20×3

√3x +1=60

x=119

put x's value in equation

distance= 2077 m

Distance, which is independent of direction, is the length between two points or things. Distance solely considers the overall magnitude and disregards the start and finish places because it is a scalar attribute. Distance can only have a positive or zero value because it is a scalar attribute; it cannot be negative.

The meter (m) is the most widely used unit of measurement for distance, however kilometers (km) can also be used to describe longer distances and centimeters (cm) or millimeters can be used to express shorter distances (mm). The distance traveled is frequently represented by the letter D when computing distance.

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Answer: (1) C, (2) B

Explanation: I took the test, but to solve question 1 use the inelastic collision formula m1v1+m2v2 = (m1+m2)v2 to get the answer. Question 2 is b because it states that the ball is perfectly elastic as it collides with the floor. A perfectly elastic collision is when objects collide and no net energy is lost, hence the bouncy ball still has 30 J worth of kinetic energy.

The speed of the dog as it runs with its newfound treasure is 3.75 m/sec.

The kinetic energy of the bouncy ball after it collides with floor is 30 J.

The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.

According to the given in question,

a.) Using inelastic collision formula

[tex]m_1v_1+m_2v_2 = (m_1+m_2)v_2[/tex]

[tex]v_2[/tex] = 60/16 m/sec = 3.75 m/sec

b.) Because it states that the ball is perfectly elastic as it collides with the floor. A perfectly elastic collision is when objects collide and no net energy is lost, hence the bouncy ball still has 30 J worth of kinetic energy.

The speed of the dog as it runs with its newfound treasure is 3.75 m/sec.

The kinetic energy of the bouncy ball after it collides with floor is 30 J.

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Answer:

Work:

A = 640 J

Explanation:

Given:

m = 500 kg

V₁ = 1.2 m/s

V₂ = 2.0 m/s

____________

A - ?

The work is equal to the change in the kinetic energy of the car:

A = Δ Wk

A = m·V₂² / 2 - m·V₁² / 2

A = (m/2)·(V₂² - V₁²)

A = (500/2)·(2² - 1.2²) = 640 J

Answer: 36.55

Explanation:

Answer:it is 30.03

Explanation:

[tex]g = \frac{GM}{r {}^{2} } \\ g = \frac{6.673 \times 10 {}^{ - 11} \times 10 {}^{18} }{(10 {}^{3}) {}^{2} } \\ g = \frac{6.673 \times 10 {}^{7} }{10 {}^{6} } \\ g = 6.673 \times 10 \\ g = 66.73 \: m.s {}^{ - 2} [/tex]

I have three energy levels, with 10 electrons in my outer energy level. I am calcium.

Energy levels refer to the regions around an atom where electrons can be found.

The energy levels are given by the principal quantum number, n.

Electrons in an atom are arranged in energy levels.

An atom that has three energy levels belong to period 3 of the periodic table.

The outermost energy level for an atom that has three energy levels is energy level 3.

The atom that has 10 electrons in the outermost energy level of 3 will have 10 + 8 + 2 electrons = 20 electrons.

The element is calcium.

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(a)The displacement of the car is 12.8m

(b)The average speed is 10.0 m/s.

(c)The average velocity is 7.11 m/s.

Distance is the real distance an object has traveled. The shortest distance between an object's initial and final positions is called displacement. It has a scalar value. A vector quantity, that is. An body can never travel a distance of zero.

a. The vector sum of the different displacements yields the overall displacement. The Pythagorean theorem provides the vector sum since these displacements are perpendicular.

x2 = (10.0 km)² + (8.00 km)²

x = 12.8 km.

The angle is found using

tan q = (10.0 km/8.00 km)

q = 51.3° N of E.

b. Avg. Speed = Distance/Time = (18.0 km/30.0 min)(1000 m/1 km)(1 min/60 s) = 10.0 m/s.

c. Avg. Velocity = Displacement/Time = (12.8 km/30.0 min)(1000 m/1 km)(1 min/60 s) = 7.11 m/s.

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The complete question is -

A car travels 10.0 km due north, then 8.00 km due east, the total trip taking 30.0 minutes. Find (a) the displacement of the car, (b) the average speed (in m/s), and (c) the average velocity (in m/s).

Height to which the lift of the pail is taken is 0.37m.

Height is the vertical distance of an object from the surface of the Earth.

Work done = 13 J

Weight of the pail of the water = 35-N

Gravity is defined as the force that attracts a body to the Earth or any other physical body that has mass.

W = mgh

mg = 13 J

W = 35 N

h = [tex]\frac{W}{mg}[/tex]

h = [tex]\frac{13}{35}[/tex]

h = 0.37 m

The height to which the lift of pail will be raised will be 0.37m.

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The amount of force applied to the 7kg object that caused it to accelerate at 8m/s² is 56 newtons.

A force is simply a push or a pull of an object resulting from the object's interaction with another object.

From newton's second law;

Force = mass × acceleration

Given the data in the question;

Plug the given values into the formula to determine the applied force.

Force = mass × acceleration

Force = 7kg × 8m/s²

Force = 56kgm/s²

Force = 56 N

Therefore, the applied force is 56 newtons.

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When basketball is inflated than there is more air resistance so weight that is force due to gravity is more.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Deflated and inflated ball are with air and without air so mass varies hence we say it is matter as it occupies space inside the ball.

When basketball is inflated than there is more air resistance so weight that is force due to gravity is more.

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The electron receives some of the energy that belongs to the photon. If an object's energy declines, its frequency and wavelength get longer.

When a photon with energy hf collides with an electron that is stationary, compelling proof that light is composed of particles (photons) and that photons have momentum is produced. Although the electron receives a portion of the energy and momentum (the Compton effect), the energy and momentum are conserved in this elastic collision. The photon possesses hf/ energy following the collision, while the electron has K kinetic energy.

Energy is conserved as follows: hf = hf/ + K

Combining this with the momentum conservation formulae, the following equation may be used to demonstrate the relationship between the wavelengths of the incident and emitted photons:

Δλ = λ/ - λ = (h/mec) (1 - cosθ)

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Answer:

Explanation:

velocity describes the directional speed of an object in motion as an indication of its rate of change in position (includes magnitude but not the direction) while acceleration is the change in velocity (inculdes direction and magintude)

If N placed one of these on top of item M, the acceleration when M is dragged by a force od 20 N is 10 m/s. N weighs 2 kg, but M is 4 kg in weight.

The correct answer is D

Acceleration is the rate at which the direction and speed of a moving object change over time. Anything is said to be accelerated when it goes straighter and faster or slower. Therefore, even though the speed is constant, travel on a circle increases due to the constant change in direction.

Slow acceleration can be dangerous as well as unpleasant, especially when entering a busy state road when you must accelerate rapidly to avoid being rear-ended. When you are moving slowly up a slope while driving, acceleration can sometimes be a hassle.

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The initial speed of the ball is 4.12 m/s.

Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.

Given parameters:

Mass of the ball; M = 10.0 g.

Height from where ball straight down from : h = 2.0 m.

Final speed of ball; v = 7.5 m/s.

And we known that, acceleration due to gravity; g = 9.8 m/s²

We have to find:  the initial speed of the ball: u = ?

We know that, v² = u² + 2gh

⇒ u² = v² - 2gh

⇒ u² =( 7.5)²  - 2×9.8 ×2

⇒ u² = 17.05

⇒ u = 4.12 m/s.

Hence,  the initial speed of the ball is 4.12 m/s.

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A ray of light is a segment of light that is moving in a single direction along a straight path. A beam of light is a collection of light rays that emanates from a single source.

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Answer:79g +9a(y>3

Explanation::79g +9a(y>3

Every action has an equal and opposite response, states Newton's Third Law of Motion. When a bullet is fired from a gun, the gun exerts force on the bullet that causes it to move forward. The bullet also applies an equal and opposing force to the gun as it moves backward.

The term “translational motion” refers to a motion in which the body moves in a straight line from one location to another. The motion of a bullet launched from a gun is an illustration of translational motion.As the bullet goes rearward, it exerts an equal and opposite force on the gun.

Therefore, A bullet loses kinetic energy and gains potential energy when fired vertically upward. At greater altitudes, the bullet continues to lose kinetic energy while gaining potential energy.

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The correct statement about the right ascension is "it is 3 hours to the east of zero hours right ascension.

option C is the correct answer

The right ascension of stars is the astronomical equivalent of longitude.

Right ascension is also the angular distance of the star measured eastward from the first point of Aries, also called the Vernal Equinox.

In other words, the right ascension describes how far a star is displaced from a given point towards the eastward direction along the longitude.

Lines of longitude runs from east to west. But the right ascension runs towards the east.

Thus, the correct statement describing the right ascension would measure it towards the east.

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The relative velocity of two vehicles moving in the same direction will be 42 m/s, whereas the relative velocity of two vehicles moving in different directions will be 8 m/s.

Let the velocities of the two vehicles be, v1 and v2, respectively.

Given,

The velocity of the first vehicle (v1) = 24 m/s

The velocity of the second vehicle (v2) = 18 m/s

Case-1

When they are moving in a same direction,

The relative velocity (V) of the two vehicles will be the sum of their velocities, i.e.,

V = v1 + v2

=> V = 24 + 18

=> V = 42 m/s.

Case-2

When the vehicles are moving in different directions,

The relative velocity (V) of the two vehicles will be the difference between the velocities, i.e.,

V = v1 - v2

=> V = 24 - 18

=> V = 6 m/s.

Therefore, The relative velocity of two vehicles moving in the same direction will be 42 m/s, whereas the relative velocity of two vehicles moving in different directions will be 8 m/s.

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Answer:

V = (S2 - S1) / t = (750 - 500) m / (300 - 100) s = 1.25 m/s

Likewise during segment (D)

V = (0 - 750) m / (500 - 300) s = -3.75 m/s

The potential energy of the water having height of 45 m and has a mass of 250 kg is 110,250 Joule.

The force acting on the two objects affects the potential energy formula. The formula for gravitational force is P.E. = mgh, where g is the acceleration caused by gravity (9.8 m/s2 at the earth's surface) and h is the height in meters.

Substituting the value of mass (m), height(h) and g in the formula of potential energy

P.E = mgh

P.E. = 250*9.8*45

P.E.= 110,250 J  

Potential energy is the power that a thing possesses as a result of where it is in relation to other objects. Because the earth can pull you down through the force of gravity while doing work in the process, being at the top of a stairwell gives you more potential energy than standing at the bottom.

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Use Newton’s law of universal gravitation.

F = Gm1m2/r^2

(Force) F= Newtons

G is the “Universal Gravitational Constant”. G = 6.67 × 10^-11 N m^2 kg^-2

M1 is the first mass, the Sun. Mass of the Sun = 2 x 10^30 kg

M2 is the second mass, the Earth. Mass of the Earth = 6 x 10^24 kg

DR is the distance between the two objects. Distance from the Earth to the Sun = 1.5 x 10^11 metres

F = Gm1m2/r^2

F = G x 2 x 10^30 x 6 x 10^24/ [1.5 x 10^11] ^2 = 6.7 x 10^11 N

Answer:

light travel faster than sound

Explanation:

because light, travels at about 300,000,000 meters per second, travels much faster than sound, which travels at 340 meters per second

The color of the wire is a factor that will not affect the magnetic strength of a solenoid.

A solenoid is a device that consists of a coil made of wire, a housing and a moveable armature. When an electrical current is flowing in the solenoid, a magnetic field forms around the coil which draws the plunger inside. A solenoid has the ability to convert electrical energy in the form of mechanical work.

The magnetic field created by a solenoid depends on the current and density of rounds. The energy density of the magnetic field depends on the strength of the magnetic field and also depends upon the magnetic permeability of the material present in it. Iron has a larger permeability as compared to a vacuum.

So we can conclude that option C is the correct answer.

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The mechanical advantage of the crow bar is 3 while the velocity ratio is 4. The efficiency of the machine is 75%.

We know that a machine is any device that can be used to make work a lot much easier. Thus, the machine is the object that could make less effort to be applied in making a greater work to be done as we can see in this case we have here.

From the question, the pieces of information that we can get are;

Distance moved by Effort = 200 cm

Distance moved by load = 0.5 m or 50 cm

Velocity ratio = Distance moved by Effort/Distance moved by load

= 200 cm /50 cm

= 4

Mechanical advantage is found to be; Load/Effort

= 600 N/200 N

= 3

Efficiency = Mechanical advantage/ Velocity ratio * 100/1

= 6/4 * 100/1

=3/4 * 100/1

= 75%

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Answer:

Apparently, it takes 3 * 5E-3 sec to travel from D to G

The distance is given as .68 m

V = S / t = .68 m / (3 * 5E-3 s) = 45 m/s

The surprising conclusion - the pendulum traverses a longer distance in a shorter time, than in a shorter distance, and its period is shorter.

The term "force" has a specific meaning in science. At this level, it is quite acceptable to refer to a force as a push or a pull. A force is not something that an object 'has in it.' Another object applies a force to another. The concept of a force is not limited to living or nonliving things.

The goal of this experiment is to quantify gravity's acceleration using a physical pendulum. A basic pendulum is described as a point mass connected to a massless unstretchable string connected to a rigid support. Mechanical energy is conserved in a simple pendulum with no friction. Total mechanical energy is the sum of kinetic and gravitational potential energy. There is a continual interchange of kinetic energy and gravitational potential energy as the pendulum swings back and forth.

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A statement of relation between objects is called as Concept.

How do you define a concept?

Concepts are regarded as intangible ideas. They are acknowledged as the basic conceptual building blocks of principles, thoughts, and beliefs.

They are critical to all facets of cognition. As a result, concepts are investigated by a variety of academic fields, including linguistics, psychology, and philosophy. These fields are curious about the logical and psychological structure of concepts as well as how they are combined to create thoughts and sentences.

An increasingly popular interdisciplinary approach known as cognitive science has made the study of concepts a focal point.

There are currently at least three popular approaches to understanding a concept:

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