You have four objects at rest, each of the same volume. Object A is partially submerged, and objects B, C, and D are totally submerged in the same container of liquid, as shown in Figure P10.60. Draw a force diagram for each object. Rank the densities of the objects from least to greatest and indicate whether any objects have the tame density.

Answer:

The answer is D.

Explanation:

You have to apply distance formula :

\(distance = speed \times time\)

\(let \: d = 200,t = 4\)

\(200 = s \times 4\)

\(4s = 200\)

\(s = 200 \div 4\)

\(s = 50 \: m {s}^{ - 1} \)

An eagle travels 200 meters in 4 seconds

Speed of the eagle

Distance=d=200m

Time=t=4s

\({\boxed{\sf Speed ={\dfrac{Distance{}_{(d)}}{Time{}_{(t)}}}}}\)

\(\qquad\quad {:}\longmapsto\sf Speed=\dfrac {200}{4}\)

\(\qquad\quad {:}\longmapsto\sf Speed=50m/s \)

\(\therefore{\underline{\boxed{\bf Speed\:of\:eagle=50m/s}}}\)

We would apply the relativistic kinetic energy formula which is expressed as

KE = (y - 1)mc^2 = [1/√(1 - v^2/c^2 - 1]mc^2

where

m is the mass of proton

c is the speed of light

v is the speed of the proton

From the information given,

m = 1.67 x 10^-27 kg

c = 3 x 10^8 m/s

v = 0.54c

Thus,

KE = 1.67 x 10^-27 x (3 x 10^8)^2[1/√(1 - (0.54c/c)^2 - 1]

KE = 28.27 x 10^-12 J

We would convert from joules to mev

1 J = 6,241,509,343,260 MeV

28.27 x 10^-12 = 28.27 x 10^-12 x 6,241,509,343,260

KE = 176.48 Mev

the translational kinetic energy is 176.48 Mev

Answer:

If the person rises 12 ft per revolution that person will

rise 18 ft in 1 and 1/2 revolutions

E = m g h = W h          where W is the weight of the person

E = 149 lb * 18 ft = 2682 ft-lbs

The force acting on the body by its weight is 656.6 N. The displacement for him is 2.4 m. Then the work done is 1595.5 J.

Work done is a physical quantity describing the force acted over a displacement. It is the dot product of force and displacement.

Given that, the weight of the person = 149 lb

1 lb = 0.45 kg

149 lb = 149 × 0.45 = 67 kg.

weight in Newton = 67 kg × 9.8 m/s² = 656.6 N

The displacement he made = 12 ft - 4 ft = 8 ft

1 ft = 0.3 m

then 8 ft = 8 × 0.3 = 2.4 m

Now, work done W = f. ds

W = 2.4 m × 656.6 N = 1595.5 J

Therefore, the work done by the person weighing 149 lb walking exactly one and a half revolution(s) up a circular, spiral staircase of radius 4 ft if the person rises 12 ft after one revolution is 1595.5 J.

To find more on work done, refer here:

https://brainly.com/question/13662169

#SPJ2

Answer:

78.2 m/time

Explanation:

Wavelength =Speed/Frequency

Speed = 46 x 1.7 =78.2 m/time.

The relative density of the substance is equal to the density of the substance concerning the density of the reference substance.

The relative density of the substance is known as the specific gravity.

Hence, option B is the correct answer.

the answer is B your welcome

The  true statement about a series circuit is: the current flow through every part of the circuit is the same. Hence, option (B) is correct.

Electrical networks and two-terminal components can be linked either serially or parallelly. The electrical network that results will have two terminals and be capable of operating in either a series or parallel topology.

It depends on your point of view whether a two-terminal "thing" is an electrical network (like resistors connected in series) or an electrical component (like a resistor). In this article, a two-terminal "thing" that participates in series/parallel networks will be referred to as a "component."

Each component connected in series travels the same "electrical path" and carries the same amount of current—equal to the network's current—through it.

Learn more about series circuit here:

https://brainly.com/question/14997346

#SPJ2

Answer: respiration by animals and plants and burning of fuel.

Explanation: would be happy if u give me branliest pls do it

Answer:

Explanation:

Given:

m = 2.0 kg

Wk = 225 J

__________

H - ?

Wp = m*g*H

Wp = Wk

m*g*H = 225

H = 225 / (m*g) = 225 / (2.0*9.8) ≈ 11,5 m

Answer: Air

Explanation:

Roffns dn b bdd

Answer:

DMs are not accessible anymore. I assume Zuka is a staff member? the only way to talk to a staff member anymore is to report something, but even then, the probably won't even look at what they're deleting :/

May I have brainliest please? :)

Explanation:

On a position vs time graph (x vs t), displacement is the difference in positions (Δx = x₂ − x₁).

On a velocity vs time graph (v vs t), displacement is the area under the graph (Δx = ∫ v dt).

Answer:

Explanation:

Solar energy is efficently present naturally , whereas coal and natural gas are more efficient by reliable applications, things like coal and natural gases are also non renewable they also cause pollution .so using solar enery are better than coal and natural gases.

the resistance of the wire to the nearest tenth of an ohm is 2Ω.

What is resistance?

resistance is a measure of the opposition to current flow in an electrical circuit. resistance always measure in ohm.It design with R.A resistor is a device designed to produce resistance. resistor can be used to the  limit current, divide voltage, or generate heat.

Sol-Potential difference (V) = current (I) * Resistance (R)

V = IR

I = 2.0A

V = 10v

So the

R = ?

V = IR

R = V / I

R = 10 / 2

R = 2Ω

Thus the,

The resistance across the wire is 2Ω.

To know more about resistance click-

https://brainly.com/question/17563681

#SPJ4

When a star can no longer fuse hydrogen to helium in its core, the core shrinks and heats up. This is because the core is no longer able to generate enough energy through hydrogen fusion to support its own weight against the force of gravity. So the correct option is B .

As a result, the core contracts and becomes denser, which causes an increase in temperature and pressure. This increased temperature and pressure eventually become high enough to ignite hydrogen fusion in a shell surrounding the core, and the star begins to expand and brighten. This phase of a star's life is called the subgiant or red giant branch, depending on its initial mass. Helium fusion does not begin until the core temperature and pressure are high enough to fuse helium, which occurs later in the star's evolution.

Learn more about hydrogen

https://brainly.com/question/28937951

#SPJ4

The new volume corresponding to a new pressure can be calculated using Boyle's law. The volume of the gas when pressure increased to 2.40 atm is 3.01 L.

According to Boyle's law, the volume of a gas is inversely proportional to the pressure of the gas. Thus PV = a constant.

If a system have initial pressure P1 and volume of V1 when changes to final pressure of P2 and volume V2, the relation between them can be written as follows:

P1V1 = P2V2

Thus for the initial pressure of 1.7 atm and 4.25 l volume, the final volume corresponding to 2.4 atm pressure is calculated as follows:

1.7 atm × 4.25 L = 2.4 atm × V2

V2 = (1.7 atm × 4.25 L)/2.4 atm

     = 3.01 L.

Thus,  volume of the gas when pressure increased to 2.40 atm is 3.01 L.

To find more about Boyle's law, refer the link below:

https://brainly.com/question/1437490

#SPJ1

Explanation: use a calculator

Answer:

hope this helps  : )

Explanation:

brainliest plz

The pressure in a liquid at a given depth is called the hydrostatic pressure. This can be calculated using the hydrostatic equation:

P = ρgh

P = (1000 kg/m³)(9.8 m/s²)(4 m)

Answer:

P = ρgh  

P = (1000 kg/m³)(9.8 m/s²)(4 m)

P = 39200 Pa

Explanation:

In the case of the water stored in a tank, the pressure at its bottom is the weight acting on a unit area of the surface where the tank is kept. To turn that into an equation: Pressure = weight/area, and weight = mass (m) * acceleration due to gravity (g). This means pressure = m * g/ area

The maximum current that can be drawn from the battery without the terminal voltage dropping below 8.90 v is 75 A.

To calculate the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.90 V, we need to use the equation: `V = E - Ir`, where `V` is the terminal voltage, `E` is the electromotive force, `I` is the current, and `r` is the internal resistance of the battery.Rearranging the equation, we get: `I = (E - V)/r`Substituting the given values, we get: `I = (9.00 V - 8.90 V)/0.012 Ω`I = 8.33 ΩΩ, or 75 A (rounded to the nearest whole number).Therefore, the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.90 V is 75 A.

We know that the internal resistance of the battery is 0.012 Ω and the electromotive force is 9.00 V. The formula used to calculate the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.90 V is I = (E - V)/r.Here, E = 9.00 V, V = 8.90 V, and r = 0.012 Ω.I = (9.00 V - 8.90 V)/0.012 ΩI = 83.3 ΩΩRounding off to the nearest whole number gives the answer of 75 A. Therefore, the maximum current that can be drawn from the battery without the terminal voltage dropping below 8.90 V is 75 A.

To know more about maximum current visit :-

https://brainly.com/question/30030208

#SPJ11

Answer:

a. normal

Explanation:

In the field of physics the normal is a line drawn at a right angle to a barrier. In other words the normal line is the line that is drawn perpendicular (right angle, 90 degrees) to the reflective surface of a mirror, or the particular boundary in which refraction occurs at the point of incidence of a light ray. This can be seen in the picture attached below.

The purpose of the rheostat in this experiment is It limits the current in the circuit and as an aid to adjusting the current in the circuit. Option C.

A rheostat is defined as,

A variable resistor which is used for controlling the inflow of electric current either by accelerating or dropping the resistance.

The term rheostat was chased by the English scientist Sir Charles Wheatstone and is concluded from the Greek word “ rheos ” and “ statis ” which means current controlling device.

All electrical circuit has three fundamental components, and they are

The circuit's applied voltage

through the circuit current

the circuit's resistance offering

A rheostat is a variable resistor that's used to control the inflow of electrical current in a circuit. By conforming the resistance of the rheostat, it's possible to acclimate the quantum of current flowing through the circuit.

This can be useful in a variety of electrical trials and operations, similar as testing the current- voltage relationship of a circuit or regulating the quantum of power supplied to a cargo.

Learn more about rheostat;

https://brainly.com/question/30620580

#SPJ4

Answer:

A healthy diet, low in sugar, caffeine, and alcohol, can promote health and reduce stress.

Explanation:

A healthy diet, low in sugar, caffeine, and alcohol, can promote health and reduce stress. Get adequate sleep: A good night's sleep makes you able to tackle the day's stress more easily. When you are tired, you are less patient and more easily agitated, which can increase stress.

We can start by using the formula for tangential acceleration:

a_t = r * α

α = a_t / r = 1.3 m/s^2 / 150 m = 0.00867 rad/s^2

a_total = √(a_t^2 + a_c^2)

where a_c is the centripetal acceleration. We can rearrange this equation to solve for a_c:

a_c = √(a_total^2 - a_t^2) = √(3.0^2 - 1.3^2) = 2.5 m/s^2

a_c = r * ω^2

where ω is the angular velocity. Rearranging this equation, we get:

ω = √(a_c / r) = √(2.5 m/s^2 / 150 m) = 0.1155 rad/s

Finally, we can use the formula for angular displacement:

θ= ω^2 * t / 2

v_i = 0

a = a_t

to find the time it takes for the car to reach the required total acceleration of 3.0 m/s^2:

a = (v_f - v_i) / t

t = (v_f - v_i) / a

t = v_f / a

where v_f is the final velocity. Using the formula for final velocity and the fact that the car starts from rest, we get:

v_f^2 = 2 * a_t * θ

v_f = √(2 * a_t * θ)

t = √(2 * θ / a_t)

t = √(2 * θ / 1.3) = √(1.5385 * θ)

t = v_f / a = √(2 * a_t * θ) / a_t = √(2 * θ / 1.3)

Setting these two expressions for t equal to each other, we get:

√(1.5385 * θ) = √(2 * θ / 1.3)

Squaring both sides and solving for θ, we get:

θ = 4.89 radians

Therefore, the car will have traveled through an angle of 4.89 radians when the magnitude of its total acceleration is 3.0 m/s^2.

To know more about tangential acceleration , check out :

https://brainly.com/question/11476496

#SPJ4

Answer:

Please find the calculated values entered into the following table;

\(\left\begin{array}{ccccc}Object & Mass \ (kg)& Weight \ (N) & Height \ (m)&G.P.E.\\A&5&50&2&100\\B&2&20&6&120\\C&8&80&5&400\\D&20&200&0.6&120\\E&5,000&50,000&2&100,000\\F&0.2&2&10&20\\G&67&670&44&29,480\end{array}\)

Explanation:

The given parameters are;

The acceleration due to gravity, g ≈ 10 N/kg

The Gravitational Potential Energy, G.P.E. = m × g × h

The weight of the object, W = m × g

∴ G.P.E. = W × h

The table is filled using the above formula for calculations as follows;

For object A, we have;

Weight = 5 kg × 10 N/kg = 50 N

G.P.E. = 50 N × 2 m = 100 J

For object B, we have;

Weight = 2 kg × 10 N/kg = 20 N

G.P.E. = 20 N × 6 m = 120 J

For object C, we have;

Weight = 8 kg × 10 N/kg = 80N

G.P.E. = 80 N × 5 m = 400 J

For object D, we have;

Weight = 20 kg × 10 N/kg = 200 N

G.P.E. = 200 N × 0.6 m = 120 J

For object E, we have;

Weight = 5,000 kg × 10 N/kg = 50,000 N

G.P.E. = 50,000N × 2 m = 100,000 J

For object F, we have;

Weight = 0.2 kg × 10 N/kg = 2 N

G.P.E. = 2 N × 10 m = 20 J

For object G, we have;

Weight = 67 kg × 10 N/kg = 670 N

G.P.E. = 670 N × 44 m = 29,480 J

Therefore, we have the table filled as follows;

\(\left\begin{array}{ccccc}Object & Mass \ (kg)& Weight \ (N) & Height \ (m)&G.P.E.\\A&5&50&2&100\\B&2&20&6&120\\C&8&80&5&400\\D&20&200&0.6&120\\E&5,000&50,000&2&100,000\\F&0.2&2&10&20\\G&67&670&44&29,480\end{array}\)

Answer:

1) e

2)c

3)b

4)d

i dont know if these are right, but something along these lines if you understand the pattern

Explanation:

The work that must be done on the hoop to stop it is calculated to be -3.888 J.

As the mass of the hoop is 120 kg and the hoop's center of mass has a speed of 0.180 m/s, the rotational inertia can be given as follows;

I= mr^2

I=120r^2

The kinetic energy of hoop = Linear kinetic energy + Rotational kinetic energy

K= (1/2mv^2) + (1/2Iw^2)

But; w= (v/r)^2

K= (1/2mv^2) + (1/2×120r^2(v/r)^2)

K = (1/2×120×0.180^2) + (1/2×120×0.180^2)

K = 3.888 J

To stop the hoop, its final kinetic energy must be 0, therefore;

Work done = Kfinal-Kinitial = 0 - 3.888

W= -3.888 J

Hence, -3.888 J of work must be done to stop the hoop.

To learn more about speed; click here:

https://brainly.com/question/14560901

#SPJ4

Given

The Sun is d=150 million kilometers away from Earth.

Light travels at v=3 × 10^5 m/s.

To find

How long does it take for light to reach Earth from the Sun?

Explanation

We know

Time taken is given by

Conclusion

The time taken is D.500 sec

Answer:

This could be possible if the continents were once connected and then separated by plate tectonics, allowing the same species to spread across the land before it was divided by oceans.

Explanation:

This isn't a Physics question, do check your category before posting next time