did the astronauts on the challenger die instantly

Answer:

The president is permitted to veto specific legislative acts, but Congress has ... and judicial appointments and on the approval for ratification of treaties. ... State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature. ... No Bill of Attainder or ex post facto Law shall be passed.

Explanation:

The largest producer of primary air pollution in the United States is what? electricity producing plants.

Answer:

electricity production

Explanation:

San Andreas Fault--Normal Fault is associated correctly.

This is option 1.

San Andreas Fault is a right-lateral strike-slip fault that runs approximately 800 miles (1,300 km) through California in the western United States. It forms the boundary between the Pacific Plate and the North American Plate, extending from the San Francisco Bay Area to the Salton Sea near the Mexico–United States border. It is one of the most significant geological features on the planet, and it is also one of the most active, with frequent earthquakes of varying sizes being reported in the region.

A normal fault is a type of fault that occurs when the rocks in the Earth's crust are pulled apart by tension. A normal fault occurs when the block of rock above the fault line falls downwards relative to the block of rock below the fault line, which is raised upwards.

So, the correct answer is option 1

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In free-fall motion the velocity is given by the following equation of motion:

Where:

Therefore, the velocity increases linearly with time. This happens if the object encounters no air resistance. In the case that there is air resistance the object will reach a terminal velocity.

In the case of distance, this is given by the following equation:

This means that the distance increases with time following a parabolic function.

.Explanation:

.......................................................

We want to compare the gravitational acceleration of different planets by using the given table. The correct option is the last one, so we have:

Planet Y, planet W, planet Z, planet X.

First, we know that the velocity equation is written as:

V(t) = a*t + v₀

Where a is the acceleration and v₀ is the initial velocity.

With this equation, we can find the acceleration in each planet.

Planet W

The initial velocity is v₀ = -3m/s

V(t) = a*t - 3m/s

And we know that at t = 2s, the velocity is -22m/s.

v(2s) = -22m/s = a*2s - 3m/s

           -22m/s + 3m/s = a*2s

           -19 m/s = a*2s

           (-19 m/s)/2s = a = -9.5m/s^2

Now we just do the same thing for each planet.

Planet X:

v₀ = -0.5 m/s

v(1s) = -4.2 m/s = a*1s - 0.5 m/s

          -4.2 m/s + 0.5 m/s = a*1s

          -3.8 m/s^2 = a

Planet Y:

v₀ = 0 m/s

v(2s) = -21 m/s = a*2s

           (-21 m/s)/2s = a = -10.5 m/s^2

Planet Z:

v₀ = 0 m/s

v(1s) = -8 m/s = a*1s

          (-8 m/s)/1s = a = -8m/s^2

Then the order from greatest to least is:

Y, W, Z, X

So the correct option is the last one.

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As the clump of colored fluid at the bottom of the lava lamp reaches the top, Its temperature increases. Temperature directs to the hotness or coldness of a body.

Temperature directs to the hotness or coldness of a body. In clear terms, it is the method of finding the kinetic energy of particles within an entity. Faster the motion of particles more the temperature.

Temperature is essential in all areas of Science right from Physics to Geology and also it is important in most parts of our everyday life.

The clump of colorful fluid at the bottom of the lava lamp rises to the top because the clump, as the heavier liquid, absorbs heat and expands, becoming less dense and rising.

Due to this the temperature is increasing.Hence As the clump of colored fluid at the bottom of the lava lamp reaches the top, Its temperature increases

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Answer:

A density

Explanation:

all the others were wrong smh had to redo quiz after all

Answer: it’s closed

Explanation: a pex

To rank the time required for the crates to return to their initial positions from largest to smallest, you first need to calculate the time taken for each crate to return to its original position. This can be done using the formula:

Once you have the time taken for each crate to return to its original position, you can rank them from largest to smallest.

Compare the values in the list and rank them from largest to smallest. The highest value in the list will be the first, followed by the second highest value, and so on.

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Modem enables digital computers to communicate across different media, including telephone wires, cable lines, and radio waves.

A modulator-demodulator or modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. Modems converts or modulates the analog signals coming from telephone wire into digital form for example in form of 0 s and 1 s.

To transmit digital data, the sending modem must first modulate, or encode, a computer's digital signal into an analog signal that can travel over the phone line. The receiving modem must then demodulate, or decode, the analog signal back into a digital signal recognizable to a computer.

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The net force on particle q2 can be calculated by finding the net electric force acting on it. The net electric force acting on a particle is the vector sum of the forces exerted by all the other charges on it.

The electric force between two charges q1 and q2 is given by Coulomb's law: F = k * (q1 * q2)/r^2, where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

The force on particle q2 due to q1 will be:

F1 = k * (q1 * q2) / (0.980m)^2

The force on particle q2 due to q3 will be:

F2 = k * (q2 * q3) / (0.750m)^2

The net force acting on q2 will be the vector sum of F1 and F2.

Keep in mind, q1 and q3 have opposite charges, so they attract each other, while q2 has the same charge as q1, so they repel each other.

Note: The unit of charge is Coulomb (C), but in this problem you are given the charges in microCoulomb (uC) so you need to convert it to Coulomb.

To increase the temperature of 5.00 g of mercury from 15.0°C to 36.5°C, 15 Joules of heat energy are required. Hence, option B aligns well with the answer.

Specific heat capacity is the amount of heat that needs to be added or taken from a unit mass of a substance to alter its temperature by one degree. Heat energy is the total energy of all particles in a substance. Heat is the process of energy transfer between objects that occurs due to a disparity in temperature between them.

Heat capacity is a measure of the amount of heat energy needed to raise the temperature of an object by one degree Celsius (or Kelvin). It indicates the capacity or ability of a substance to store and hold heat. The information given is as follows:

Mass of liquid mercury, m = 5.00 g

Specific heat capacity of liquid mercury, c = 0.14 J/g.

K Initial temperature, T1 = 15.0 °C

Final temperature, T2 = 36.5 °C

We will apply the formula of the heat (Q) energy required to raise the temperature of a substance Q = m x c x ΔT,

Q is the heat energy in joules (J) required to raise the temperature of the substance.

m is the mass of the substance in grams (g)

c is the specific heat capacity of the substance in joules per gram per degree Celsius (J/g.K)

ΔT is the temperature change in degrees Celsius (°C).

ΔT = T2 − T1 = 36.5 °C - 15.0 °C= 21.5 °C

Substitute the given values into the formula:

Q = m x c x ΔT

Q = 5.00 g x 0.14 J/g.K x 21.5°C

Q = 15.05 J

Thus, the correct option is (B) 15 J.

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Answer:

hiatory

Explanation:

Answer:

5 cm

Explanation:

Answer:

0 N

Explanation:

suppose, you push a box with 5 N, and another person pushes the box on the opposite side of the box with 5 N, the net force (resultant ) is 0 N, the box will not move if it wasn't moving

hope this helps

The same power plant could supply approximately 270,000 homes if the average electricity consumption rises to 1,200 kWh/month in the summer.

This is due to the fact that there is now a significant increase in the demand for electricity, which must be met by power plants.

500 mW x 24 hours/day x 30 days/month x 0.9 = 324,000 MWh/month.

The number of homes that the same power plant can serve, however, may vary based on how much electricity each household has.

324,000 mWh/month x 1,000 kWh/MWh = 324,000,000 kWh/month.

324,000,000 kWh/month/1,200 kWh/month/home = 270,000 homes.

The number of homes that can be served by the same power plant in hotter parts of the United States may rise significantly if air conditioning is kept up.

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Answer:

Please do not take my word for this at all, but this is what I found, "When the pendulum swings back down, the potential energy is converted back into kinetic energy. At all times, the sum of potential and kinetic energy is constant." So I think the answer is B also you are anime fan too lol :DD I love hinata

Explanation:

Hi there!

We can begin by using the derived kinematic equation:

\(t = \sqrt{\frac{2h}{g}\)

Plug in the given values and let g = 9.8 m/s²:

\(t = \sqrt{\frac{2(20)}{g}} = \boxed{2.02 s}\)

Now, we can solve for its final velocity using the equation:

\(v_f = v_i + at\)

It is dropped from rest, so vi = 0 m/s.

\(v_f = at\)

\(v_f = 9.8(2.02) = \boxed{19.796 m/s}\)

Answer:

a. The ball would reach the ground in approximately \(2.02\; \rm s\).

b. The velocity of the ball right before landing would be approximately \(19.8\; \rm m\cdot s^{-1}\).

(Assumptions: the ball was dropped with no initial velocity; air resistance on the ball is negligible; \(g = 9.81\; \rm m\cdot s^{-2}\).)

Explanation:

Under these assumptions, the acceleration of this ball would be constantly \(a = g = 9.81\; \rm m\cdot s^{-2}\) (same as the gravitational field strength) during the descent.

Displacement of the ball: \(x = 20.0\; \rm m\).

Initial velocity of the ball: \(v_{0} = 0\; \rm m\cdot s^{-1}\).

Let \(t\) denote the duration of this descent.

The SUVAT equation \(x = (1/2)\, a\, t^{2} + v_{0}\, t\) relates the known quantities \(a\), \(x\), and \(v_{0}\) to the unknown \(t\).

Substitute the known quantities into this equation and solve to find the value of \(t\!\):

\(\displaystyle 20.0\; {\rm m} = \frac{1}{2}\times 9.81\; {\rm m\cdot s^{-2}} \times t^{2} + 0\; {\rm m \cdot s^{-1}} \times t\).

\(\displaystyle 20.0\; {\rm m} = \frac{1}{2}\times 9.81\; {\rm m\cdot s^{-2}} \times t^{2}\).

\(\displaystyle t^{2} = \frac{20.0\; \rm m}{(1/2) \times 9.81\; \rm m\cdot s^{-2}}\).

Since \(t > 0\):

\(\begin{aligned}t &= \sqrt{\frac{20.0\; \rm m}{(1/2) \times 9.81\; \rm m\cdot s^{-2}}} \\ &\approx 2.01928\; \rm s\\ &\approx 2.02\; \rm s \\ & (\text{Rounded to 2 sig. fig.})\end{aligned}\).

Since the acceleration of this ball is constant, the velocity of the ball right before landing would be:

\(\begin{aligned}v_{1} &= a\, t \\ &\approx 9.81\; \rm m\cdot s^{-2} \times 2.01928\; \rm s \\ &\approx 19.8\; \rm m \cdot s^{-1} \end{aligned}\).

Answer:

GET GOOD

Explanation:

Solution,

We know that,

\(f = ma \\ \frac{f}{m} = a \\ \frac{1000}{100} = a \\ 10 = a\)

Therefore,

Acceleration produced will be 10m/s².

The radius of a standard rate turn for a plane moving at 240 m/s  is approximately 933 meters.

A standard rate turn in aviation refers to a turn in which an aircraft completes a full 360-degree rotation in 2 minutes, resulting in an angular speed of 3 degrees per second (180 degrees per minute). To calculate the radius of a standard rate turn for a plane moving at 240 m/s, we can use the formula:

Radius = V / (G × Tan(Bank Angle))

where:
- V is the velocity of the plane (240 m/s)
- G is the gravitational constant (approximately 9.81 m/s²)
- Bank Angle is the angle at which the aircraft is tilted during the turn.

First, we need to find the bank angle. Since we know that the angular speed is 3 degrees per second, we can use the following formula to find the bank angle:

Bank Angle = Arc Tan((V² × Angular Speed) / (G × 180))

Bank Angle = Arc Tan((240² × 3) / (9.81 × 180))
Bank Angle ≈ 14.7 degrees

Now that we have the bank angle, we can calculate the radius of the turn:

Radius = 240 / (9.81 × Tan(14.7))
Radius ≈ 933 meters

So, the radius of a standard rate turn for a plane moving at 240 m/s is approximately 933 meters.

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The smallest object that a decent satellite camera can detect from a distance of 250 km is about 0.125 m in size.

A decent satellite camera can distinguish objects that subtend angles as small as 0.5 x 10-6 rad.

A subtended angle is an angle formed by two lines that are extended from the edges of the object to the observer's eye. It is also known as an angular size.

The following formula may be used to find the size of a subtended angle:

\($$\theta =\frac{S}{D}$$\)

where:θ = subtended angleS = size of the object

D = distance between the observer and the object

We can rearrange the formula above to solve for S.

\($$S =\theta D$$\)

Substituting the given values, we get:

\($$S = (0.5 \times 10^{-6})(250,000)$$\)

\($$S = 0.125$$\)

Therefore, the smallest object that a decent satellite camera can detect from a distance of 250 km is about 0.125 m in size.

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Answer:

Her altitude as she crosses the bar, h₂ is approximately 6.1 m

Explanation:

The given parameters of the motion of the pole vaulter are;

The mass of the pole vaulter, m = 57 kg

The speed with which the pole vaulter is running, u = 11 m/s

The speed of the pole vaulter when she crosses the bar, v = 1.1 m/s

The acceleration due to gravity, g = 9.8 m/s²

From the total mechanical energy, M.E. equation, we have;

M.E. = P.E. + K.E.

Where;

P.E. = The potential energy of the motion = m·g·h

K.E. = The kinetic energy of the motion = 1/2·m·v²

By the principle of conservation of energy, we have;

The change (loss) in kinetic energy, ΔK.E. = The change (gain) in potential energy, ΔP.E.

ΔK.E. = 1/2·m·(v² - u²)

ΔP.E. = m·g·(h₂ - h₁)

Where;

h₁ = The ground level = 0 m

h₂ = The altitude with which she crosses the bar

∴ 1/2·m·(v² - u²) = m·g·(h₂ - h₁)

(h₂ - h₁) = (v² - u²)/(2·g) = (11² - 1.1²)/(2·9.8) = 6.11173469388

h₂ = 6.11173469388 + h₁ = 6.11173469388 + 0 = 6.11173469388

h₂ = 6.11173469388

Her altitude as she crosses over the bar, h₂ ≈ 6.1 m.

Answer:

Violet, blue, green, yellow, orange, red

Explanation:

I just took the astronomy quiz, I got it right

A. spreadsheet or computer script, we can calculate the value, which is 9.80651834 m/s^2. B. the value gives g(90°, 10,000) ≈ 9.81937375 m/s^2. C. the value gives g(45°, 0) ≈ 9.80666553 m/s^2. D. the value gives: g(-66.5°, 3,048) ≈ 9.83065116 m/s^2. E. the cosine function is an even function (cos(-θ) = cos(θ)), the value of g will be different for φ and -φ, except when φ = 0 (equator) where cos(0) = cos(0) = 1.

To compute the acceleration of gravity at the given locations, we'll substitute the values of latitude (φ) and height above mean sea level (Z) into the formula for g(φ, Z).

(a) Baseline Road (latitude 40° North), at an elevation of one mile above mean sea level:

Latitude (φ) = 40°

Height (Z) = 1 mile = 1,609.34 meters

Substituting these values into the formula, we have:

g(40°, 1609.34) = 980.6160(1 - 0.0026373cos^2(40°) + 5.9×10^(-6)cos^2(2 * 40°)) - (3.085462×10^(-4) + 2.27×10^(-7)cos^2(40°)) * 1609.34 + (7.254×10^(-11) + 1.0×10^(-18)cos^2(40°)) * (1609.34)^2 - (1.517×10^(-17) + 6×10^(-20)cos^2(40°)) * (1609.34)^3

Using a spreadsheet or computer script, we can calculate the value, which is approximately: g(40°, 1609.34) ≈ 9.80651834 m/s^2.

(b) 10 km above the North Pole:

Latitude (φ) = 90° (North Pole)

Height (Z) = 10,000 meters

Substituting these values into the formula, we have:

g(90°, 10,000) = 980.6160(1 - 0.0026373cos^2(90°) + 5.9×10^(-6)cos^2(2 * 90°)) - (3.085462×10^(-4) + 2.27×10^(-7)cos^2(90°)) * 10,000 + (7.254×10^(-11) + 1.0×10^(-18)cos^2(90°)) * (10,000)^2 - (1.517×10^(-17) + 6×10^(-20)cos^2(90°)) * (10,000)^3

Calculating the value gives: g(90°, 10,000) ≈ 9.81937375 m/s^2.

(c) Halfway between the equator and the North Pole at mean sea level:

Latitude (φ) = 45°

Height (Z) = 0 meters

Substituting these values into the formula, we have:

g(45°, 0) = 980.6160(1 - 0.0026373cos^2(45°) + 5.9×10^(-6)cos^2(2 * 45°)) - (3.085462×10^(-4) + 2.27×10^(-7)cos^2(45°)) * 0 + (7.254×10^(-11) + 1.0×10^(-18)cos^2(45°)) * (0)^2 - (1.517×10^(-17) + 6×10^(-20)cos^2(45°)) * (0)^3

Calculating the value gives: g(45°, 0) ≈ 9.80666553 m/s^2.

(d) 10,000 feet above mean sea level at the Antarctic Circle (≈66.5 degrees South latitude):

Latitude (φ) = -66.5°

Height (Z) = 10,000 feet = 3,048 meters

Substituting these values into the formula, we have:

g(-66.5°, 3,048) = 980.6160(1 - 0.0026373cos^2(-66.5°) + 5.9×10^(-6)cos^2(2 * -66.5°)) - (3.085462×10^(-4) + 2.27×10^(-7)cos^2(-66.5°)) * 3,048 + (7.254×10^(-11) + 1.0×10^(-18)cos^2(-66.5°)) * (3,048)^2 - (1.517×10^(-17) + 6×10^(-20)cos^2(-66.5°)) * (3,048)^3

Calculating the value gives: g(-66.5°, 3,048) ≈ 9.83065116 m/s^2.

(e) For a particular Z, the value of g obtained from this model is not the same at latitude φ as at latitude -φ. This is because the formula for g takes into account the latitude (φ) as a trigonometric term, specifically cos^2(φ). Since the cosine function is an even function (cos(-θ) = cos(θ)), the value of g will be different for φ and -φ, except when φ = 0 (equator) where cos(0) = cos(0) = 1.

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Answer:

Friedrich Miescher was the scientist who first discovered DNA.

Answer:

b

Explanation:

Answer:

The bug will take 50 seconds to travel 55 m across the floor if it's traveling by 1.1 m / s​.

Explanation:

Given

Distance covered by bug = d = 55 m

The speed = s = 1.1 m/s

To determine

Time the bug will take to cover the distance = t = ?

Using the formula to determine the time the bug will take to travel 55 m across the floor if it's traveling by 1.1 m/s​.

Distance = Speed x Time

d = s x t

t = d/s

t = 55/1.1

t = 50 s

Therefore, the bug will take 50 seconds to travel 55 m across the floor if it's traveling by 1.1 m / s​.

Answer it scapes away loose anf rough pieces of wood

Explanation:

Answer:

To achieve a nice smooth finish, it's essential to sand to help prepare the area for painting application, by sanding you are removing imperfections (also known as pimples), creating a nice smooth finish while at the same time adding adhesion by developing small, rough ridges for the paint to stick to.

Using the right sandpaper can make all the difference in a woodworking, painting, or finishing project; but choosing between the many different types of sandpaper that are available can be a challenge. Here are some tips on how to choose the best sandpaper for your next project.

Explanation:

Sry if this is wrong :(

Explanation:

v = u + a * t

60 = 15 + 6 * t

t = 7.5 seconds

The statement "The apparent pitch of the source is higher than the actual pitch of the source" is true in situations where the source and observer are moving towards each other, leading to a higher observed frequency due to the Doppler effect.

The apparent pitch of a source can be higher than the actual pitch due to the Doppler effect. The Doppler effect occurs when a source of sound (or any wave) and an observer are in relative motion. As the source and observer move closer together, the observed frequency (or pitch) increases, making the apparent pitch higher than the actual pitch.
To understand this phenomenon, consider a sound source emitting waves at a constant frequency. When the source is stationary relative to the observer, the observer perceives the actual pitch.

However, when the source moves towards the observer, the sound waves in front of the source get compressed, leading to an increased frequency of the waves reaching the observer. This increased frequency translates to a higher apparent pitch.
Conversely, when the source moves away from the observer, the sound waves in front of the source get stretched, causing the frequency reaching the observer to decrease, and resulting in a lower apparent pitch. The same effect can also occur if the observer is moving towards or away from the stationary source.

Hence we can say that the given statement is true.
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