A student is given a 5.4 g mineral sample. She determines that the volume of her sample is 2 cm3. What is the density of her mineral

Answer:

d

Explanation:

The equivalent resistance of the circuit is 21.60 ohms.

When resistors are connected in series, their resistances add up to give the total resistance of the circuit. In this case, we have three 7.20 ohm resistors connected in series. To find the equivalent resistance, we simply add up the individual resistances:

7.20 ohms + 7.20 ohms + 7.20 ohms = 21.60 ohms.

Therefore, the equivalent resistance of the circuit is 21.60 ohms. This means that when a 19.0 V battery is connected to the circuit, the current flowing through the circuit can be calculated using Ohm's Law (I = V/R), where V is the voltage and R is the resistance.

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Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

v is the velocity

m is the mass

From the question we have

\(k = \frac{1}{2} \times 1300 \times {20}^{2} \\ = 650 \times 400 \\ = 260000\)

We have the final answer as

Hope this helps you

If the universe were completely empty except for one object-a solid sphere moving through space at a speed of 100 km/s, it would take forever to be able to stop the object.

We know that according to the law of inertia, a body will continue in it state of rest unless it is acted upon by an external force. On the basis of this law, we know that if the universe is empty, there would be nor force that would be able to stop any object that is moving on the earth.

Thus, if the universe were completely empty except for one object-a solid sphere moving through space at a speed of 100 km/s, it would take forever to be able to stop the object.

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Answer:

Explanation:

.

The security guard make the trip of 120 m of distance in a time of 250 s with a speed of: 0.48 m/s

The formula and procedure we will use to solve this exercise is:

v = x /t

Where:

Information about the problem:

Applying the velocity formula we have that:

v = x /t

v = 120 m /250 s

v = 0.48 m/s

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

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An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t=0 s. It then oscillates with a period of 1.7 s and a maximum speed of 32.5 cm/s. (1) the amplitude of the oscillation is approximately 8.8 cm.(2) the glider's position at t = 0.29 s is approximately 4.20 cm.

(1)To find the amplitude of the oscillation, we can use the relationship between the period and the angular frequency (ω) of the oscillation:

T = 2π/ω

where T is the period of the oscillation.

Given that the period is 1.7 s, we can rearrange the formula to solve for ω:

ω = 2π / T = 2π / 1.7 ≈ 3.69 rad/s

The maximum speed of the glider is related to the amplitude (A) and the angular frequency (ω) by the equation:

V_max = A * ω

Given that the maximum speed is 32.5 cm/s and ω is approximately 3.69 rad/s, we can solve for the amplitude:

A = V_max / ω = 32.5 cm/s / 3.69 rad/s ≈ 8.8 cm

Therefore, the amplitude of the oscillation is approximately 8.8 cm.

(2)To find the glider's position at t = 0.29 s, we can use the equation for the position of an oscillating object:

x(t) = A * cos(ωt)

Substituting the values we have:

x(0.29 s) = 8.8 cm * cos(3.69 rad/s * 0.29 s)

Calculating the cosine term:

x(0.29 s) = 8.8 cm * cos(1.07 rad)

x(0.29 s) ≈ 8.8 cm * 0.477

x(0.29 s) ≈ 4.20 cm

Therefore, the glider's position at t = 0.29 s is approximately 4.20 cm.

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As a result, the racer's final velocity is 13.00 m/s after accelerating at 0.500 m/s2 for 7.00 s.

Velocity is a vector representation of an object's or particle's displacement with respect to time. The meter per second (m/s) is the standard unit of velocity magnitude (also known as speed). Alternatively, velocity magnitude can be expressed in centimeters per second (cm/s). The direction of movement of the body or item is defined by velocity. Speed is fundamentally a scalar number. Velocity is, in essence, a vector quantity. It is the pace at which distance changes. It is the displacement rate of change.

Here,

The final velocity can be found using the equation of motion,

vf = vi + at,

where vf is the final velocity, vi is the initial velocity (11.5 m/s), a is the acceleration (0.500 m/s^2), and t is the time for which the acceleration was applied (7.00 s).

Substituting the values we get,

vf = 11.5 + 0.500 * 7.00 = 13.00 m/s.

So, the racer's final velocity is 13.00 m/s as he accelerates at the rate of 0.500 m/s2 for 7.00 s.

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Answer: space probe

Explanation: Kracc Bacc Amogus big fat sussy baka burger amogus Among Us big sussy big mac sussy sus Amogus Among us big fat sussy baka burger fard big huge mega Big sussy Among US

Space telescope can  observe electromagnetic radiation and avoid light pollution to allow for exploration beyond our solar system.

A telescope in space used to observe celestial objects is known as a space telescope or space observatory.

Space telescopes do not experience the light pollution that ground-based observatories do, nor do they experience the filtering and distortion (scintillation) of the electromagnetic radiation they detect. The two main categories of satellites are those that map the entire sky (astronomical surveys) and those that concentrate on certain astronomical objects or regions of the sky and beyond.

Space telescopes are separate from Earth imaging satellites, which are used for weather analysis, espionage, and other sorts of information gathering. These satellites look toward Earth for satellite imaging.

Thus, space telescope can easily overcome light pollution and can observe electromagnetic radiation which allow it exploring beyond our solar system.

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Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Explanation:

Answer:

hypothesis is likely tobe the answer, im indian

Answer:

somatosensory

Explanation:

The primary somatosensory cortex specializes in receiving signals from different parts of the body.

The angle through which it turn during that time interval if the angular acceleration is constant is 32 rad.

Angular displacement is defined as “the angle in radians (degrees, revolutions) through which a point or line has been rotated in a specified sense about a specified axis”. It is the angle of the movement of a body in a circular path.

The angular displacement will be

= average angular velocity × time period

=( final angular velocity + initial angular velocity/ 2) × time period

=( 12rad/s + 4rad/s/2 ) × (4 s)

= 8 × 4 rad

= 32rad.

Therefore, it turn through an angle of 32rad during that time interval.

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The data set that is most likely from the car equipped with ABS is :

Although the plots related to your question is missing attached below is the missing data.  

The First plot ( acceleration vs time ) plot is the data that represents the application of brakes in a car fitted with ABS ( antilock braking system ) because of the absence of skidding effect between 6.5 and 9 seconds in the graph.

The skidding effect is present in the second plot around the same time because the car is not fitted with ABS  

Hence we can conclude that the graph that shows the car fitted with ABS is the first plot .

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Figure 4 is the graph which best represents the relationship between the acceleration of an object falling freely near the surface of Earth and time taken.

This is defined as a pictorial representation of data in an organized and defined manner.

The acceleration of an object falling freely near the surface of Earth is constant which is why option D was chosen.

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Answer:

Calculate its momentum. Solution:

Given,

Mass of an object (m)=12kg

Velocity (v)=3m/s

then,

p=36kg m/s

Explanation:

while finding momentum ,we should use the formula p=mv

The velocity of the satellite in a stable circular orbit about Earth at an altitude equal to Earth's radius is 7.91 × 103 m/s.

Given that a satellite is in a stable circular orbit about Earth at an altitude equal to Earth's radius. Here are some facts regarding this: At an altitude equal to Earth's radius, a satellite orbits Earth in a circular orbit. The period of the satellite's rotation is the same as the period of Earth's rotation, and the satellite is in a geostationary orbit.

The velocity of the satellite in a circular orbit can be calculated using the formula:

\(v = (GM/r)^0.5\)

where G is the universal gravitational constant, M is the mass of the Earth, and r is the distance between the satellite and the center of the Earth.

Substituting\(r = 2rE\) and ME = 5.98 × 1024 kg into the above formula, we obtain:

v = (6.67 × 10-11)(5.98 × 1024)/(2(6.38 × 106))^0.5

= 7.91 × 103 m/s

Therefore, the velocity of the satellite in a stable circular orbit about Earth at an altitude equal to Earth's radius is 7.91 × 103 m/s.

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Answer:

44.44 mph/44 4/9

Explanation:

It asks for distance and not time. If it said it travels 1 mile each way then it won't be 45 mph. If it was 1 hour one way and an hour back then it would be different distances but 45 mph.

We can just say the car traveled 40 miles and use it for this equation.

40 mph for 40 miles is 1 hour

50 mph for 40 miles is 48 minutes

48+60 minutes is 108

This is 44.44 miles per hour

or 44 4/9 if you want to show it more accurately

In the given Transformer:

a)  The number of turns in the secondary coil is 35,000.

b)  The current in the line before the transformer is 200 Amps.

a) To determine the number of turns in the secondary coil of the transformer, we can use the turns ratio formula:

Turns ratio = N_primary / N_secondary

Given:

Voltage on the primary side (V_primary) = 15,000 V

Voltage on the secondary side (V_secondary) = 120 V

Number of turns on the primary coil (N_primary) = 280

We need to find the number of turns on the secondary coil (N_secondary).

Using the turns ratio formula:

Turns ratio = N_primary / N_secondary

V_primary / V_secondary = N_primary / N_secondary

Substituting the given values:

15,000 V / 120 V = 280 / N_secondary

Now we can solve for N_secondary:

N_secondary = (15,000 V / 120 V) * 280

N_secondary = 35,000

Therefore, the number of turns in the secondary coil is 35,000.

b) To determine the current in the line before the transformer, we can use the power equation:

Power = Voltage * Current

Given:

Power after the transformer (P_secondary) = 2 * 100 Amps * 120 V = 24,000 Watts

Voltage after the transformer (V_secondary) = 120 V

We need to find the current before the transformer (I_primary).

Using the power equation:

P_secondary = V_secondary * I_secondary

Substituting the given values:

24,000 Watts = 120 V * I_primary

Solving for I_primary:

I_primary = 24,000 Watts / 120 V

I_primary = 200 Amps

Therefore, the current in the line before the transformer is 200 Amps.

Thus :

a)  The number of turns in the secondary coil is 35,000.

b)  The current in the line before the transformer is 200 Amps.

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Answer: The metal with a volume is zinc.

Explanation: Got it right on Edge2020

Answer:

A 2-column table with 4 rows. The first column has entries glass, baby oil, maple syrup, wax. The second column has entries 2.40 grams per centimeter cubed, 0.83 grams per centimeter cubed, 1.37 grams per centimeter cubed, 0.93 grams per centimeter cubed.

Use the information in the table to predict whether each substance will sink or float in water. Note that the density of water is 1.0 g/cm3.

Glass:

✔ sinks

Baby oil:

✔ floats

Maple syrup:

✔ sinks

Wax:

✔ floats

(b)

When the isolated sphere of radius r₁ is at a potential of -2000V with charge Qo, the charge on the sphere is given by

q = CV. Using the above information the charge on the isolated sphere is Q = 7.03 × 10⁻⁷ C.

Q=CV

where,

C = Capacitance of the sphere

V = Potential

Q = Charge

Therefore, the charge on the sphere is given by,

Q = CV = 4πε₀r₁V

Where ε₀ is the permittivity of free space

ε₀ = 8.85 × 10⁻¹² F/m²

So, substituting the given values Q = 4π × 8.85 × 10⁻¹² × 0.20 × (-2000)

Q = 7.03 × 10⁻⁷ C

(c) When a wire is connected from the outer sphere to ground, then removed, the magnitude of the electric field in the different radius R varies according to equation E = 7.03 × 10⁻⁷ / (4π × 8.85 × 10⁻¹² × (0.20 + R)²)

R < r₁ : There is no electric field as the electric field inside a conducting sphere is zero.

r₁ < R < r₂: Since the conducting sphere is uncharged, the electric field in this region is also zero.

r₂ < R < r₃: For a spherical capacitor, the electric field inside the capacitor is given by

E = Q/4πε₀r²

Where,

Q = Charge on the isolated sphere = 7.03 × 10⁻⁷ C

ε₀ = Permittivity of free space = 8.85 × 10⁻¹² F/m²

r = Distance from the center of the isolated sphere = r₁ + RSo, substituting the given values and solving,

E = 7.03 × 10⁻⁷ / (4π × 8.85 × 10⁻¹² × (0.20 + R)²)

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Answer:

(a) The charge of -1.2C corresponds to approximately -7.5 × 10^19 electrons. (b) The mass of this many electrons is approximately 4.8 × 10^-17 kilograms.

(a) To determine the number of electrons necessary to produce a charge of -1.2C, we need to consider the elementary charge. The elementary charge represents the charge carried by a single electron, which is approximately -1.6 × 10^-19 coulombs. Dividing the given charge by the elementary charge, we find the number of electrons.

Number of electrons = -1.2C / (-1.6 × 10^-19C/electron) ≈ 7.5 × 10^19 electrons

(b) To calculate the mass of this many electrons, we utilize the mass of a single electron. The mass of an electron is approximately 9.1 × 10^-31 kilograms. Multiplying the number of electrons by the mass of a single electron, we obtain the mass.

Mass of electrons = (7.5 × 10^19 electrons) × (9.1 × 10^-31 kg/electron) ≈ 4.8 × 10^-17 kilograms

Therefore, the charge of -1.2C corresponds to approximately -7.5 × 10^19 electrons, and the mass of this many electrons is approximately 4.8 × 10^-17 kilograms.

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Answer:

The rocket hit the top half of the building.

Explanation:

Here is the formula for displacement

\(x(t)=\frac{at^{2} }{2}vt\)

Because the projectile is being launched at zero degrees, all of its velocity is in the horizontal direction and so there is no initial velocity for the fall, therefore

\(h=\frac{at^{2} }{2}\)

\(2h=at^{2}\)

\(\frac{2h}{a}=t^{2}\)

\(\sqrt{|\frac{2h}{a}| } =t\)

Now that we have the time taken for the object to fall, we can use it to find d by applying the displacement formula again. In this case we will remove the initial term because the acceleration is zero in the horizontal direction. Therefore

\(d=vt\)

\(d=v*\sqrt{|\frac{2h}{a}| }\)

\(d=22*\sqrt{|\frac{2*30}{9.81}| }\)

\(d=54.41\)

If there wasn't a building in the way the displacement in the x direction is 54.41.

\(y=(tan0*40)-[\frac{-9.81}{2(22*cos0)^{2}}]40^{2}\)

\(y=16.21\)

Like you said the building is 30 meters tall. You were looking to find out is it was going to hit the top or bottom half.

\(15 < 16.21\)

So it hit the top half of the other building.

Sampling is the process of selecting a subset of individuals or items from a larger population in order to gather information or make inferences about the whole population. This method allows researchers to collect data from a smaller group, which is more efficient and cost-effective than collecting data from the entire population.

Sampling is a crucial process in research because it helps ensure that the data collected is representative of the population and reduces the potential for bias. There are several types of sampling methods, including random sampling, stratified sampling, and convenience sampling. The choice of sampling method depends on the research question, the population being studied, and the resources available to the researcher. The accuracy of the data obtained from a sample depends on the sample size and the sampling method used. A larger sample size is generally more representative of the population and reduces the margin of error, while a smaller sample size may be more susceptible to sampling bias.

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Answer:

2000 cm³

Explanation:

Assuming the pressure is constant:

V / T = V / T

1000 cm³ / 300 K = V / 600 K

V = 2000 cm³

Based on the provided information, it can be predicted that the circadian rhythms for the astronauts would be drift toward a slightly longer cycle. (Option A)

A circadian rhythm, also known as circadian cycle, refers to a natural, internal process that regulates the sleep–wake cycle and is repeated roughly every 24 hours. It can refer to any process that originates within an organism and responds to the environment. These natural processes respond primarily to light and dark and affect most living things. A zeitgeber refers to any external cue or environmental cue that synchronizes an organism's biological rhythms such as circadian rhythm, usually naturally occurring and serving to entrain to the Earth's 24-hour light/dark and 12-month cycles. Circadian rhythms that are expressed in the absence of any 24-hour signals from the external environment are called free running, which are slightly longer cycle than usual. Hence, in the absence of external cue, the circadian rhythms for the astronauts would drift toward a slightly longer cycle.

Note: The question is incomplete as it is missing options which are a. They would drift toward a slightly longer cycle. b. They would become sporadic and show no definite pattern. c. They would stay synchronized with a 24-hour cycle. d. They would become synchronized with the light pattern around Mars.

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Answer: 267 m

Explanation:

2.99x10^8 m/s

———————-

1.12 x 10^6 Hz

Diatomaceous earth filters can be used for public water supplies, but they should be augmented by chlorination. Option A is the correct answer.

Diatomaceous earth filters are effective at removing small particles and can be used for public water supplies. However, they should be augmented by chlorination to ensure the complete removal of harmful microorganisms.

These filters consist of a thin layer of diatomaceous earth on top of a support structure. As water passes through the filter, particles are trapped in the diatomaceous earth layer.

Over time, the diatomaceous earth becomes clogged with particles and must be cleaned or replaced.

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The question is -

Diatomaceous earth filters:

a. Should be supplemented by a chlorination system

b. Should be integrated into a rapid sand filtration system

c. Can be used for a public water treatment system

d. Cane be used in a public sewer treatment system

The distance covered by Tiana is greater than the distance covered by the brother.

Distance is defined as the quantity that defines how far or near an object is from an observer which is normally measured in meters, kilometers and feet.

There are various ways by which distance can be measured which include the following:

From the scenerio created concerning Tiana and the brother, Tiana first left the doctors office to her friends house and they both left together to the school.

This shows that the distance covered by Tiana is greater than the distance covered by her brother.

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Answer:

I think C like my friend upove

Explanation: