A student repeats a reaction several times to test the effects of various
changes on the reaction rate. The data table shows the results. How does
increasing the temperature of the system change thereaction rate?

A. Increasing the temperature decreases the reaction rate.
B. Increasing the temperature increases the reaction rate.
C. More information is needed to determine what happens to the reaction rate.
D. Increasing the temperature has no effect on the reaction rate.

Answer:

The wavelength is =2.87m.

Explanation:

The speed of sound, the frequency and the wavelength is related by the equation

v=fλ

speed of sound is v=340ms

frequency is f=977Hz

wavelength is λ= v/f = 977/340 =2.87m

Answer:

.348 meters

Explanation:

Speed = wavelength * frequency

 340   =    wl       *  977

340 /977 = wavelength = .348 m

Answer: B. On the right side

Explanation: Metals are located on the left of the periodic table, and nonmetals are located on the upper right.

Answer:

the detection of the equivalence point, the point at which chemically equivalent amounts of the reactants have been mixed.

Answer:

Gotta be it

Explanation:

m1*v1 = m2*v2

1200*v1 = 1600*3

1200*v1  = 4800

v1 = 4800 / 1200

v1 = 4.0 m/s

[tex]speed_{avg} = \frac{Σ\:distance}{ total\: time}[/tex]

So, according to the question:

distance = 90 miles

time = 1h 45min + 15 min + 1h = 3h

[tex]Therefore:\\ speed_{avg} = \frac{90}{3} mph \\ = \boxed {30 \: mph}[/tex]

Answer:

Spring High Tide

When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low.

Answer:

low.

Explanation:

it makes the flow easier if its lower because, the resistance isn’t pushing as hard against the flow which means that the flow is easier.

Answer:

The strength of the electric field is determined by the amount of charge on the source charge (Q) and the separation distance (d) from the source charge.

Explanation:

The interaction of charged objects is a non-contact force that operates over a certain separation distance. Distance, distance, distance. Every electrical contact is accompanied by a force, emphasizing the significance of these three factors. Whether it's a plastic golf tube attracting paper bits, two like-charged balloons repelling, or a charged Styrofoam plate interacting with electrons in a piece of metal, the three crucial factors that impact the strength of the interaction are always two charges and a distance between them.  The electrical force, like all other forces, is usually measured in Newtons. The electrical interaction's intensity is a vector quantity with both magnitude and direction since it is a force. The electrical force's direction is determined by whether the charged objects are charged with similar or opposing charges, as well as their spatial orientation. With a little logic and knowledge of the two objects' charge types, the direction of the force on either of them may be determined. Objects A and B in the figure below have similar charges, hence they repel each other.

Solved your another question same like this with scaling to Cm this time we go with metre(m)

Scale factor

Mercury

Ven us

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

Answer:

60W

Explanation:

A higher watt bulb allows more electricity through, therefore the resistance must be lower.

Answer: The power station converts stored chemical energy in the fuel to kinetic energy in the raised temperature of the steam that pushed a turbine to rotate the generator that makes electricity.

So chemical to thermal (kinetic) to thermal to kinetic to electrical. Then mostly to heat or movement.

Loads of losses, thermal, mostly.

Explanation: hopes this helps

In all of the power plants, electricity is generated by rotating turbine inside a magnetic field. That is why,  power plant transfers mechanical energy into electric energy. That is why, it  doesn’t make electricity.

An industrial facility for the production of electricity is referred to as a power plant. In most cases, power plants are wired into a grid.

A revolving device called a generator, which transforms mechanical power into three-phase electric power, is found in many power plants. An electric current is produced by the movement of a conductor in relation to a magnetic field.

The majority of power plants throughout the world produce electricity by burning fossil fuels including coal, oil, and natural gas. Nuclear energy and the usage of renewable energy sources including solar, wind, geothermal, and hydroelectricity are examples of low-carbon power sources.

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Answer:

it’s going to be times 3

Explanation:

so the answer would be three times which means it will change by a factor of 3.

I’m sorry I wrote it wrong the first time.

Answer:

A

Explanation:

d = 1/2 a t^2 = 1/2 (4)(28^2) = 1568 m  ~ 1.6 x 10^3

The net electric force acting on a positive test charge at the origin is determined as ¹/₉(kq₁q₂).

The net electric force on the charges is calculated as follows;

F = kq₁q₂/r²

where;

[tex]|r| = \sqrt{(x_2-x_1)^2+ (y_2-y_1)^2} \\\\|r| = \sqrt{(-4--4)^2+ (0--3)^2} \\\\|r| = \sqrt{(0)^2 + (3)^2} \\\\|r| = 3 \ units[/tex]

[tex]F_{net} = \frac{kq_1q_2}{3^2} \\\\F_{net} = \frac{1}{9} (kq_1q_2) , \ N[/tex]

Thus, the net electric force acting on a positive test charge at the origin is determined as ¹/₉(kq₁q₂).

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Answer:

613.5 pm

Explanation:

We know that de Broglie wavelength of an electron :

λ = 1.227 / √E nm

λ = 1.227 / √400 nm

λ = 1.227 / 20 nm

λ = 0.6135 nm

λ = 0.6135 x 10⁻⁹ m

λ = 613.5 x 10⁻¹² m

λ = 613.5 pm

Wavelength of election having kinetic energy of 400 ev.

An expression which can be used to evaluate the relative error in g (in terms of h, Δh, t, and Δt) is: [tex]\delta = \frac{t^2(h\;+\Delta \;h) }{h(t\;+\;\Delta t)^2} - 1[/tex]

Relative error can be defined as a measure of the ratio of an absolute (real) value of a measurement to an expected (theoretical) value. Also, it's independent of the magnitude of its values.

In order to write this expression, we would divide the absolute (real) value by the expected (theoretical) value as follows:

[tex]\delta = \frac{g(h\;+\;\Delta h,t \;+ \;\Delta t) - \;g(h,t)}{g(h,t)} \\\\\delta = \frac{g(h\;+\;\Delta h,t \;+ \;\Delta t) }{g(h,t)} - 1\\\\\delta = \frac{t^2(h\;+\Delta \;h) }{h(t\;+\;\Delta t)^2} - 1[/tex]

Note: g = 2h/t²

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The magnitude of the acceleration and its direction however depends on the resultant force.

In a system of forces, the resultant force is the force that has the same effect in magnitude and direction as all the forces acting together.

In an inclined plane, the friction, weight and applied force all act together on the object. The magnitude of the acceleration and its direction however depends on the resultant force.

This question is incomplete as the diagrams are missing hence the numerical values can not be computed.

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Answer:

1st law--Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net forceacting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.

2nd— The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum(mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force.) For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a:

F = m * a

For an external applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways.

3rd law-- The third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal force on object A. Notice that the forces are exerted on different objects. The third law can be used to explain the generation of lift by a wing and the production of thrust by a jet engine.

The material will go as high as 91.54 km would this material go on earth if it were ejected with the same speed as on Io.

The height of the material on earth will be derived from the given values as follows:

Tue acceleration due to gravity on Io, go is given as:

[tex]g_o = \frac{GM}{r^{2}}[/tex]

Substituting the values:

[tex]g_o= \frac{6.67×10^{-11}×8.93×10^{22}}{1821000^{2}}[/tex]

[tex]g_o = 1.796 m/s^{2}[/tex]

Height on earth, He and Height on Jupiter H is given as follows:

[tex]H_e = \frac{v^{2}}{2g}[/tex]

[tex]H = \frac{v^{2}}{2g_o}[/tex]

Taking ratio of the two heights and solving for height on earth, He:

[tex]H_e = H × \frac{g_o}{g}[/tex]

Substituting the values:

[tex]H_e = 500000 × \frac{1.796}{9.81} = 91539.245 m[/tex]

Therefore, the material will go as high as 91.54 km would this material go on earth if it were ejected with the same speed as on Io.

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The resultant physical quantity, velocity is 1.7 m/s. The correct option is A.

When two  vectors are represented by vectors, their resultant will be the closing side of the triangle.

A model airplane heads due east at 1.50 meters per second, while the wind blows due north at 0.70 meter per second.

The right angle triangle is formed from the two velocity vectors and its resultant will be its hypotenuse.

Then, from the Pythagoras theorem,

Vr ² = (0.70)² + (1.50)²

Vr = 1.65 m/s

Thus, the resultant velocity is approximately  1.7 m/s.

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Np/Ns = Vp/Vs

200/Ns=120/24000

Ns=40,000

x = R Cos wt, if x = R at t = 0

Then v = dx/dt = Rw Sinwt

a = d²x/dt² = - Rw² Cos wt = -w² x

Answer:

16  2/3 hr

Explanation:

250 000 km / 15 000 km/hr =  16 2/3 hours

Answer: Limestone Caves

Explanation: The most common feature that can be caused purely by chemical weathering is Karst Landscape, which can lead to caverns and sinkholes.