PLEASE HELP ME!! SELECT ALL THAT APPLY!!! IF WRONG THEN REPORT ANSWER!! 50 POINTS AND BRAINLIEST!!!
Choose all the answers that apply.

Magnetism _____.

O is caused by the spinning motion of electrons
O is measured in watts
O can be used to create electricity
O is a property of all metals
O is the force of attraction or repulsion between objects

PLEASE MAKE IT CORRECT!!!!

Answer:

r2 = 1.25 × 10^(6) m

Explanation:

We are given;

Initial kinetic energy; K_1= 8.0 x 10^(7) J

Mass of planet zero; M = 4.0 x 10^(23) kg

Mass of space probe; m = 10 kg

Radius of planet zero; r1 = 2 × 10^(6) m

From conservation of energy, we can say that;

Initial potential energy + Initial kinetic energy = Final potential energy + Final kinetic energy

This is;

U1 + K1 = U2 + K2

Using formula for potential energy: U = GMm/r, we can write it as;

GMm/r1 + K1 = GMm/r2 + K2

Where Maximum distance = r2

At maximum distance from the center of Zero, K2 = 0.

Thus;

GMm/r1 + K1 = GMm/r2

Making r2 the subject, we have;

r2 = GMm/((GMm/r1)+ K1)

Where G is gravitational constant = 6.67 × 10^(-11) N/m²/kg2

Thus;

r2 = (6.67 × 10^(-11) × 4.0 x 10^(23) × 10)/((6.67 × 10^(-11) × 4.0 x 10^(23) × 10)/(2 × 10^(6)) + (8.0 × 10^(7)))

r2 = 1.25 × 10^(6) m

Answer:

the units of work and energy is joule and unit of power is Watt

Answer:

The distance covered by puck A before collision is  \(z = 8.56 \ m\)

Explanation:

From the question we are told that

   The label on the two hockey pucks is  A and  B

    The distance between the  two hockey pucks is D   18.0 m

     The speed of puck A is  \(v_A = 3.90 \ m/s\)

        The speed of puck B is  \(v_B = 4.30 \ m/s\)

The distance covered by puck A is mathematically represented as

     \(z = v_A * t\)

  =>  \(t = \frac{z}{v_A}\)

 The distance covered by puck B  is  mathematically represented as

      \(18 - z = v_B * t\)

=>   \(t = \frac{18 - z}{v_B}\)

Since the time take before collision is the same

        \(\frac{18 - z}{V_B} = \frac{z}{v_A}\)

substituting values

          \(\frac{18 -z }{4.3} = \frac{z}{3.90}\)

=>      \(70.2 - 3.90 z = 4.3 z\)

=>       \(z = 8.56 \ m\)

For the hunter holding his rifle so that they muzzle of the rifle is 2.00 m above the ground and who shoots his rifle at an angle of 27.2 degrees above the horizontal, the bullet's range is 14507.92 meters.

The range of the projectile is the displacement in the horizontal direction. The range has no acceleration in this direction since gravity only acts vertically.

From the question, the parameters given are:

angle = 27.2 degrees

muzzle velocity= 412m/s

vertical distance of muzzle above the ground = 2.0 m

To calculate the range, we use the formula :

Range = U² sin2∅/ g

where g = 9.81 (acceleration due to gravity)

Substituting in the formula, we have

Range = U² sin2∅/ g

Range = (412)² sin(2* 27.2)/ 9.81

Range = 14507.92 meters

The maximum horizontal distance covered by any projectile is called the range and can be calculated using the formula :

Range = U² sin2∅/ g

where u= velocity

∅ = angle

g= acceleration due to gravity

The range of a projectile is the horizontal distance the projectile travels from the time it is launched to the time it comes back down to the same height at which it is launched.

Therefore, the horizontal distance is determined by the initial velocity, and the time interval during which the projectile stays in the air, which therefore also determined by the initial velocity.

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The speed of the wind is 20 miles per hour.

To solve this problem, we can use the formula:

Speed = Distance/Time

Let's assume that the speed of the wind is x miles per hour.

With the wind, the plane travels at a speed of 460 miles per hour. This means that its speed relative to the ground is the sum of its airspeed and the speed of the wind:

460 = Airspeed + x

Against the wind, the plane travels at a speed of 420 miles per hour. This means that its speed relative to the ground is the difference between its airspeed and the speed of the wind:

420 = Airspeed - x

We can solve this system of equations to find the airspeed of the plane:

460 = Airspeed + x

420 = Airspeed - x

Adding the two equations gives:

880 = 2Airspeed

Dividing both sides by 2 gives:

Airspeed = 440 miles per hour

Now that we know the airspeed of the plane, we can find the speed of the wind by substituting this value into one of the equations we obtained earlier:

460 = Airspeed + x

460 = 440 + x

x = 20

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We can find the mass of the unknown substances by looking at the peak that is the highest in the spectrum.

The mass spectrometer is the device that could be used to obtain the masses of the various isotopes of an element. It can also be used to derive the molecular mass of a substance.

We know that in the equipment, the read out shows various peaks that corresponds to various fragments of the compound or isotopes of an element.  Then the careful observation of the various peaks that we can be able to obtain from the substance gives the mass.

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Answer:

0.96 m

Explanation:

First, convert km/h to m/s.

162.3 km/h × (1000 m/km) × (1 hr / 3600 s) = 45.08 m/s

Now find the time it takes to move 20 m horizontally.

Δx = v₀ t + ½ at²

20 m = (45.08 m/s) t + ½ (0 m/s²) t²

t = 0.4436 s

Finally, find how far the ball falls in that time.

Δy = v₀ t + ½ at²

Δy = (0 m/s) (0.4436 s) + ½ (-9.8 m/s²) (0.4436 s)²

Δy = -0.96 m

The ball will have fallen 0.96 meters.

Take action on climate change has a positive effect on health of organisms and environment.

Spread awareness and encourage friends, family and co-workers to reduce carbon pollution, reduce burning of fossil fuels by using electrical vehicle and devices. Always buy sustainable products and avoid the use of plastics.

We have to take action on climate change because it improved health,  maintain the population of organism, and reduced inequality. So we can conclude that take action on climate change has a positive effect on health of organisms and environment.

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Answer:

The correct answer is 0.022

Divide the volume value by 1000

22 divided by 1,000 = 0.022

Explanation:

Hope this helps!! :))

Answer:

We can solve for the magnitude of vector C by first isolating it on one side of the equation:

2A - 6B + 3C = 2j

3C = 2j - 2A + 6B

C = (2/3)j - (2/3)A + 2B

Now that we have an expression for vector C, we can find its magnitude using the formula:

|C| = sqrt(Cx^2 + Cy^2 + Cz^2)

where Cx, Cy, and Cz are the x, y, and z components of vector C, respectively.

Since the equation only gives us information about the y-component of vector C, we can assume that the x and z components are zero. Therefore,

Cx = 0

Cy = 2/3

Cz = 0

|C| = sqrt((0)^2 + (2/3)^2 + (0)^2)

|C| = sqrt(4/9)

|C| = 2/3

Therefore, the magnitude of vector C is 2/3.

Determine the test's reliability. Test-retest reliability is a metric of dependability that is acquired by giving the same test to a set of people twice over time.

Although the ideal testing interval will vary depending on the construct being assessed, its stability over time, and the target population, several research have demonstrated that the target time of 2 weeks is the most frequently advised interval [15].

The degree to which various raters and observers provide consistent estimates of the same occurrence is measured by inter-rater or inter-observer reliability. Test-Retest Reliability: Used to evaluate a measure's consistency across time.

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Answer:

B Gravitational potential energy

Explanation:

r = (x, y) + (6.5*cos(18°)-x, 6.5*sin(18°)-1)

v1= (x, y), v2=(6.5*cos18°-1, 6.5*sin18°-1)

You can choose any real numbers for x and y. See attached for a little more depth.

Answer:

what

Explanation:

what I dont get it??

Answer:

that makes me confused I don't think of pizza the same again LOL

Answer: ill do deeper reaseach because thats hard

Explanation:

Answer:

Explanation:

In a reversible reaction which has reached dynamic equilibrium , rate of forward reaction is equal to rate of backward reaction .

Following is a reversible chemical reaction .

A + B = C + D

Rate of forward reaction = k₁ x [ A ] x [ B ]

Rate of backward reaction = k₂ x [ C ]  x [ D ]

k₁ x [ A ] x [ B ] =  k₂ x [ C ]  x [ D ]

[ A ] x [ B ] = k₂ / k₁  [ C ]  x [ D ]

[ A ] x [ B ] = k   [ C ]  x [ D ]

The products of the forward and backward reactions remain

constant at equilibrium.

Hence option A and D are correct statement .

Answer: 490

Explanation:

Answer:

F

Explanation: Its common sence

Answer:

It’s false

Explanation:

2020 (WORST YEAR EVER) on Edge ;-)

The average acceleration can be written as:

Then, for our case, we can find out the time taken by applying:

Then, the total time taken is equal to 6.5s

Answer:

From the SUN

Explanation:

Hope it helps!!!

Follow me if you want :)

Answer:

 t ’= \(\frac{1450}{0.6499 + 2 v_r}\),  v_r = 1 m/s       t ’= 547.19 s

Explanation:

This is a relative velocity exercise in a dimesion, since the river and the boat are going in the same direction.

By the time the boat goes up the river

        v_b - v_r = d / t

By the time the boat goes down the river

        v_b + v_r = d '/ t'

let's subtract the equations

       2 v_r = d ’/ t’ - d / t

       d ’/ t’ = 2v_r + d / t

       \(t' = \frac{d'}{ \frac{d}{t}+ 2 v_r }\)

In the exercise they tell us

         d = 1.22 +1.45 = 2.67 km= 2.67 10³ m

         d ’= 1.45 km= 1.45 1.³ m

at time t = 69.1 min (60 s / 1min) = 4146 s

the speed of river is v_r

      t ’= \(\frac{1.45 \ 10^3}{ \frac{ 2670}{4146} \ + 2 \ v_r}\)

      t ’= \(\frac{1450}{0.6499 + 2 v_r}\)

In order to complete the calculation, we must assume a river speed

          v_r = 1 m / s

let's calculate

      t ’= \(\frac{ 1450}{ 0.6499 + 2 \ 1}\)

      t ’= 547.19 s

Answer:

false

Explanation:

because high- test molasses is produced from cane juice instead of sugar , not as a by product of sugar production

Julianna's resultant displacement when she walks 10 meters East, and 15 meters South and 20 meters North is 11.18m North-East.

displacement can be defined as distance in a specified direction.

To calculate the resultant displacement of the Julianna, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Julianna's resultant displacement is 11.18 m North-East.

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Answer:

hope it helps.

i) The slope of the line (m) would be ln(a), and the intercept (c) would be 0.

ii)  The slope and intercept obtained from the linearized equations provide valuable information about the relationship between the variables involved.

To linearize the given equations, we need to rewrite them in a linear form. Let's work through each equation:

(i) Y = aX¹

To linearize this equation, we can take the natural logarithm (ln) of both sides:

ln(Y) = ln(aX¹)

Using the logarithmic property, we can simplify it as:

ln(Y) = ln(a) + ln(X¹)

Now, we can introduce a new variable, let's say ln(Y), and rewrite the equation as:

ln(Y) = ln(a) + X¹ln(X)

Now, we have a linear equation in the form Y' = mX' + c, where Y' = ln(Y), X' = ln(X), m = ln(a), and c = 0. In this linearized form, Y' would be plotted on the y-axis, and X' would be plotted on the x-axis. The slope of the line (m) would be ln(a), and the intercept (c) would be 0.

(ii) C = aT + BT²

To linearize this equation, we can introduce a new variable, let's say Z, defined as Z = C/T. Now, we can rewrite the equation as:

Z = a + BT

Now, we have a linear equation in the form Z = mT + c, where Z = C/T, m = B, and c = a. In this linearized form, Z would be plotted on the y-axis, and T would be plotted on the x-axis. The slope of the line (m) would be B, and the intercept (c) would be a.

By linearizing the equations, we can transform the nonlinear relationships into linear relationships, which allows for easier analysis and interpretation of the data. The slope and intercept obtained from the linearized equations provide valuable information about the relationship between the variables involved.

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Answer:

0.5 m x 1.5 m

A bat is flying at a wall and making a constant 1,70 kHz sound. The bat must fly at a speed of 0.8 m/s in order to detect an 8.00 Hz beat frequency.

The frequency of a repeated event is its number of instances per unit time. It differs from angular frequency and is sometimes referred to as sampling rate for clarification. The unit of frequency is hertz (Hz), or one occurrence per second.

The spring constant of a standing human body is approximately 7.5 Hz, and the rate of a sitting position in a cab is typically 4-6 Hz, according to the research that has already been done. Table 1 displays the natural frequencies of the major body parts.

Frequency = 1.70 kHz

New frequency = 8.00 Hz

V = ?

8.00 / 1700 = 2 * v / 340m/s

v = 0.8 m/s

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Answer:

=> Black holes are points in space that are so dense they create deep gravity sinks. Beyond a certain region, not even light can escape the powerful tug of a black hole's gravity.

=> Anything that ventures too close—be it star, planet, or spacecraft—will be stretched and compressed like putty in a theoretical process aptly known as spaghettification.

\( \infty \infty \)

Answer:

32.7 m

Explanation:

If it is in the air for 5.16 s    the highest point is at one-half of this time

  =   5.16/2 = 2.58 s    <====== at this point velocity = zero

vf = vi + at

0 = vi - 9.8 (2.58)      shows vi = 25.3 m/s

d = vi t  + 1/2 at^2

 = 25.3 (2.58) - 1/2 (9.8) (2.58^2 )   = max height = 32.7 meters

Answer:

both are only physical changes

Explanation:

Physical changes are changes that do not alter the identity of a substance.

The liquid soap is still liquid soap when mixed into water.

The dry ice is still dry ice when it changes state from solid to gas.