In the following lever system, what is the counter-clockwise torque?




18 Nm

240 Nm

360 Nm

480 Nm

Answer: The direction of the magnetic field of a large magnet is toward you. ... Q: 650 kg cart is moving along a roller coaster track at 3.50 m/s at ... Q: Lab 8- Magnetic Fields: solenoids, forces on charged particles and ..... Q: Problem 7 A uniform magnetic field of magnitude 0.173 T is directed along the positive x axis.

Explanation:

The magnitude and direction of the force on the charge will be 30 N towards the +x direction.

Lorentz's force is defined as the force acting on a point charge when it is moving in an electric and magnetic field. Under the electric and magnetic field, a force is to act on the charge, known as the Lorentz force.

The given data in the problem is ;

q is the value of charge =  +0.300 c

B is the magnetic field strength = 0.400 T.

v is the velocity of moving charge = 250 m/s.

Mathematically, the Lorentz force is given by;

[tex]\rm F=qvB \\\\ F= 0.300 \times 250 \times 0.400 \\\\ F= 30 \ N[/tex]

Hence, the magnitude and direction of the force on the charge will be 30 N towards the +x direction.

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Answer:

75

Explanation:

Power is current times voltage:

P = IV

Voltage is current times resistance:

V = IR

Therefore:

P = I²R

Given I = 0.62 A and R = 195 Ω:

P = (0.62 A)² (195 Ω)

P ≈ 75 W

Answer:

the answer is A.  they are essential to life on Earth

Explanation:

Answer: the answer is a

Explanation:

because that is how we live

Answer:

945 j

Explanation:

You have just given the ball kinetic energy, which is given by the following equation:

KE= 1⁄2 m v2 = 1⁄2 (2.1 kg)(30 m/s)2 = 945 Joules

Answer:

3.0000 atm = 303.98 kPq

7.000 mmHg = 0.9333 kPa

10.00 kPa = 0.09869 atm

15.00 kPa = 112.5 mmHg

Explanation:

Just did this on edge, all these answers are correct!

C. The sun heats earth and it’s oceans unevenly.

Hope this helps chu

Have a great day

☆ Dont forget to mark brainliest ☆

Answer:

The correct answer is option C. "The sun heats earth and it’s oceans unevenly".

Explanation:

Ocean water is warmer around the equator than the currents that come farther south of the equator. This phenomenon happens because the sun heats earth and its oceans unevenly since the amount of energy that reaches the Earth is a function of latitude. The equator has a 0 degree latitude, and is at this point at which the Earth receives more heat from the Sun

A option is the right option

Answer: The sum of all the acceleration vectors. Hope this helps. :)

Explanation:

3.

If the reaction forms a new substance it's a chemical reaction.

Answer:

X-rays

Explanation:

It would be c repeated processes-that are used in a variety of ways

Answer:

the correct answer would be D. A variable or alteration to one part that affects an entire system.

the other ones dont make sense

~batmans wife dun dun dun....

The answer is 20,260,000

D) waves are used to transmit the rail signal though the air. these waves are encoded at different frequencies for different stations

Answer:

The correct answer is D.

Explanation:

The radio can pick up several different stations because the waves are used to transmit the radio signal through the air. These waves are coded at different frequencies, assigned to different radios. The waves do not mix, so we can tune several radio stations.    

Have a nice day!

Answer:

It is half the field strength at 0.5cm

Explanation:

Final answer:

The magnetic field at 0.5 cm from a current-carrying wire would be twice as strong as the field at 1 cm, based on the inverse proportional relationship between magnetic field strength and distance from the wire.

Explanation:

The magnetic field strength around a current-carrying wire follows an inverse relationship with distance, meaning as the distance from the wire increases, the magnetic field strength decreases.

Since the magnetic field at 1 cm is twice as strong as at 2 cm, we can conclude that the field follows an inverse proportional relationship with distance in this region (ignoring the complex equations at very close distances). Therefore, at half the distance from the wire (0.5 cm), the field strength would be twice as much compared to at 1 cm. This is because if doubling the distance (from 1 cm to 2 cm) halves the field, then halving the distance (from 1 cm to 0.5 cm) should double the field strength.

In longitudinal waves, the vibration or oscillation is parallel to the propagation direction of the wave itself . These disturbances are due to the successive compressions of the medium, where the particles move back and forth in the same direction as the wave.

This means, the closer together the particles are, the greater the amplitude of the wave. This is because of the distance between particles of the medium that is being compresed by the perturbation.

In this sense, the best example is the motion of a spring, since the air particles that are around the spring coil will oscillate in the same direction in which the waves propagate.

Answer: The motion of spring

Explanation: because the motion of spring represents a longitudinal wave

Answer:

D. hydrogen sulfide gas (H2S)

Explanation:

A compound is composed of two or more elements chemically bound together.

In this case, hydrogen is chemically bounded with sulfur to form a gaseous compound called hydrogen sulfide.

Answer:

D. hydrogen sulfide gas (H2S)

Explanation:

A compound is composed of two or more elements chemically bound together.

In this case, hydrogen is chemically bounded with sulfur to form a gaseous compound called hydrogen sulfide.

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Explanation:

Answer:

12200 ft/s

Explanation:

The question is on constant acceleration

→Uniform acceleration motion is given by⇒⇒⇒     Vf=Vo+ at..............(a)

→Where Vf= final velocity=?

            Vo=initial velocity =2200 ft/s

              a= acceleration= 1000ft/s²

               t= 10.0 sec

Substitute values in (a) above

Vf=Vo+ at

Vf= 2200 + ( 1000×10) = 12200 ft/s

Answer:

12,200

Explanation:

got it right on odessyware

Answer:

B. 0.16 m

Explanation:

The vertical distance by which the player will miss the target is equal to the vertical distance covered by the dart during its motion.

Since the dart is thrown horizontally, the initial vertical velocity is zero:

[tex]v_y = 0[/tex]

While the horizontal velocity is

[tex]v_x = 15 m/s[/tex]

The horizontal distance covered is

[tex]d_x = 2.7 m[/tex]

Since the dart moves by uniform motion along the horizontal direction, the time it takes for covering this distance is

[tex]t=\frac{d_x}{v_x}=\frac{2.7 m}{15 m/s}=0.18 s[/tex]

along the vertical direction, the motion is a uniformly accelerated motion with constant downward acceleration g=9.8 m/s^2, so the vertical distance covered is given by

[tex]d_y = \frac{1}{2}gt^2=\frac{1}{2}(9.8 m/s^)(0.18 s)^2=0.16 m[/tex]

Answer:

0.16 m

Explanation:

The answer is Your mouth or nose

Answer ======= the mouth/nose.

The Work [tex]W[/tex] done by a Force [tex]F[/tex] refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path.  

It should be noted that it is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy). Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter:  

[tex]1J=(1N)(1m)=Nm[/tex]  

Now, when the applied force is constant and the direction of the force and the direction of the movement are parallel, the equation to calculate it is:  

[tex]W=(F)(d)[/tex] (1)

When they are not parallel, both directions form an angle, let's call it [tex]\alpha[/tex]. In that case the expression to calculate the Work is:  

[tex]W=Fdcos{\alpha}[/tex] (2)

For example, in order to push the 200 N box across the floor, you have to apply a force along the distance [tex]d[/tex] to overcome the resistance of the weight of the box (its 200 N).  

In this case both (the force and the distance in the path) are parallel, so the work [tex]W[/tex] performed is the product of the force exerted to push the box [tex]F=50N[/tex] by the distance traveled [tex]d[/tex]. as shown in equation (1).

Hence:

[tex]W=(50N)(20m)[/tex]  

[tex]W=1000Nm=1000J[/tex] >>>>This is the work  

Answer:

B. They cannot make light rays converge.

Explanation:

Real images are defined as the image in which light rays will converge at a point after reflection through the mirror

if the light rays converge and meet at a point in front of mirror then the point of convergence is known as real image

while if the light rays will not converge and the light will diverge after reflection through the mirror then it will appear to meet at a point behind the mirror

this imaginary point is known virtual image

so here in case of plane mirror and convex mirror the light rays will not converge at a point after reflection through the mirror

so it can not form real images

so correct answer will be

B. They cannot make light rays converge.

Answer:

New technology allowed microscopes to make it easier to view things that had never been seen before, such as cells.

Explanation:

Answer:

BCDE

Explanation:

Answer:

The total resistance is 15 Ω, the total current is 1A, The potential drop in R1 and R2 are 10V and 5V respectively and the total power develped is 15 W.

Explanation:

First it is necessary to simplify the circuit. We can do this by calculating the total or equivalent resistance Re. For series resistance arrangement, Re is computed as:

RT = R1 + R2 = 5 Ω + 10 Ω = 15 Ω

According to Ohm’s law the total current can be calculated dividing the total voltage V by Re:

I = V/Re = 15V/15Ω = 1A  

This current will be the same current through R1 and R2. Then we can compute the potential drop across R2 multiplying the current across R1 by the resistance:

VR1 = I*R2 = 1 A * 10 Ω = 10 V  

The potential drop across R2 is obtained in the same way as R1, considering R2 resistance:

VR2 = I*R1 = 1 A * 5Ω = 5 V

The total power could be calculated multiplying the total current I by the total voltage:

P = I*V = 1 A * 15 V = 15 W

Calculations related to the flow of current, potential drop, power and total resistance in a circuit can be determined through the application of Ohm's Law and Power formulas. Specific values are needed for exact calculations.

In order to calculate the current, potential drop, total power developed, and total resistance in a circuit, we first need to understand some basic physics concepts. The current passing through a resistor, like R1 or R2, can be calculated using Ohm's Law, which states: Current (I) = voltage (V) / resistance (R). Similarly, the potential drop across a resistor can also be determined using Ohm's law: Potential Drop = Current * Resistance. Lastly, total power developed in a circuit can be determined using the formula: Power (P) = Voltage * Current, and total resistance can be obtained using the appropriate formula based on whether the resistors are connected in series or in parallel. Without specific values provided for voltage, resistance, or current, exact calculations cannot be done here.

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Answer:

Explanation:

Resolving the parallel resistor branches

[tex]\frac{1}{Rtotal} =\frac{1}{8.0ohm} +\frac{1}{8.0ohm} +\frac{1}{8.0ohm} =2.67Ohm[/tex]

The equivalent resistor is now in series with the 2.0 Ohm resistor

so, by using Ohm's Law

[tex]I=\frac{V}{Rtotal+R} \\I=\frac{20.0V}{2.67Ohm+2.0Ohm} \\\\I= 4.28A[/tex]

Answer:

The lowest energy of electron is the ground state.

Explanation:

The excited electrons has the lowest energy when it is in the ground state.

The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.

Energy of any exited state is given by E = nh/2π where n =0,1,2,3....

As, the number of excited state increases the energy associated with the  electron increases.

So, for n=0, the energy is the lowest and is said to be in the ground state.

Thus, the correct option is B.

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Answer:

8bfdyg8oea

Explanation:

Final answer:

Periods on the periodic table are horizontal rows that reflect the number of electron shells of elements, which range from 1 to 7. As you move across a period, the number of electrons increases. In contrast, groups are vertical columns where elements share the same number of valence electrons, leading to similar chemical properties.

Explanation:

In the context of the periodic table, periods are horizontal rows that define the arrangement of elements. These periods range from left to right and are numbered 1 through 7, starting at the top of the table. Periods indicate the number of electron shells an element has, with each period beginning when a new principal energy level commences to fill with electrons. For instance, period 1 has only two elements: hydrogen and helium. Other periods have more elements, reflecting additional electrons filling the subsequent principal energy levels.

The elements within a period have the same number of electron shells, but as you move from left to right across the table, the number of electrons in the outer shell increases for the elements. This progression affects their chemical and physical properties. When it comes to groups, the vertical columns of the periodic table, elements in the same group have identical numbers of electrons in their valence shell, contributing to similar chemical behavior.

Answer:

100 degree Celsius

373 Kelvin

212 Fahrenheit

Explanation:

The boiling point of water on celsius scale is 100 degree C.

Convert 100 degree C into kelvin

C = K - 273

100 degree C = 100 + 273 = 373 K

Convert 100 degree C into degree F

C = 5 / 9 ( F - 32)

F = 9 / 5 x 100 + 32 = 212

Water boils at 373  

✔ kelvins

.

Water boils at 100  

✔ degrees Celsius

.

Water boils at 212  

✔ degrees Fahrenheit

.

To determine if the light reflected from the surface of a pool of water is polarized, you can use a polarizer and observe if any changes occur when the polarizer is rotated.

A polarizer is a virtuously optical device that can convert an unpolarized light beam into a polarised light beam in some way.

Here,
To determine if the light reflected from the surface of a pool of water is polarized, you can use a polarizer and observe if any changes occur when the polarizer is rotated.

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Answer:

an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.

Explanation:

Look it up on google

Answer:

A satellite is an artificial body put in orbit around the earth or another planet in order to collect information or for communication.

A satellite could also be a celestial body orbiting the Earth or another planet.

Answer:

30 kgm/s

Explanation:

The momentum of a body is given by the product of mass and  its velocity.

∴ momentum = mv

                        = 15 × 2

                        = 30 kgm/s

Answer:

In longitudinal waves, particles travel in the direction parallel to that of the wave motion where as in transverse waves, particles move perpendicular to the direction of the wave motion and in surface waves, particles in the medium move in a circular motion.A good example of longitudinal waves is sound waves. Vibrating a string on the ground can serve as an example of transverse wave.For surface waves, the ocean waves travelling on the surface can illustrate the cicular movement of particles in the water.

Answer:

There are three kinds of mechanical waves depending upon the direction in which they travel or propagate through the medium.

(i) Longitudinal waves

(ii) Transverse waves

(iii) Surface waves

In transverse waves, the particles tend to move in a direction at right angles to the waves whereas in longitudinal waves, they move in parallel direction to each other. When it comes to surface waves they lie in circular motion.