PLEASE HELP!! THIS IS DUE RN!!

Answer:

A. Indians who were part of the East India Company’s private army.

Explanation:

The sepoys were Indian soldiers who were recruited into the Company's army. Just before the rebellion, there were over 300,000 sepoys in the army, compared to about 50,000 British. The forces were divided into three presidency armies: Bombay, Madras, and Bengal.

Answer:

A-Indians who were part of the East India Company’s private army

Explanation:

Answer:

(a) θ = 20°

(b) Time Delay = 2.84 s

Explanation:

(a)

This is the case of the projectile motion. In projectile motion, for the same launch speed, the range of a projectile is the same for the complimentary launch angles. Hence, the snowball will have the same range when launched at 70°, at an angle of:

[tex]\theta = 90^{0} - 70^{0}[/tex]

θ = 20°

(b)

The time of flight of snowball can be found by the following formula:

[tex]T = \frac{2\ u\ Sin \theta}{g}[/tex]

where,

T = Time of flight = ?

u = launch speed = 23.3 m/s

g = acceleration due to gravity = 9.81 m/s²

For θ = 70° :

[tex]T_{70} = \frac{(2)(23.3\ m/s)Sin70^{0}}{9.81\ m/s^{2}}[/tex]

T₇₀ = 4.46 s

For θ = 20° :

[tex]T_{20} = \frac{(2)(23.3\ m/s)Sin20^{0}}{9.81\ m/s^{2}}[/tex]

T₂₀ = 1.62 s

Therefore, the time delay can be calculated as follows:

[tex]Time\ Delay = T_{70} - T_{20}\\Time\ Delay = 4.46\ s - 1.62\ s\\[/tex]

Time Delay = 2.84 s

A. The angle at which the second ball should be thrown is 20°

B. The delay time between the two throws is 2.83 s

From the question given above, we were told that:

From the above data, the angle at which the second ball should be thrown will be = 90 – 70 = 20°

T = 2uSineθ / g

T = (2 × 23.3 × Sine 70) / 9.8

T = 4.45 s

T = 2uSineθ / g

T = (2 × 23.3 × Sine 20) / 9.8

T = 1.62 s

Delay time = 4.45 – 1.62

Delay time = 2.83 s

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Answer:

6.28 * 10⁴ m/s

Explanation:

Using the relation :

Given :

Radius, R = 10km

Period, T = 1.0 s

v = (2πR) / T

Where v = velocity of a point

R in meters ;

1km = 1000m = 10³m

10km = 10 * 10³m = 1 * 10^4 m

v = (2π*10^4m) / 1 s

v = 6.2831853 * 10⁴ m/s

v = 6.28 * 10⁴ m/s

Answer:

The direction of the resultant force is approximately 189.462º.

The magnitude of the resultant force is approximately 1216.553 newtons.

Explanation:

Let consider postive the direction of motion of Daisy's foot and the upward direction (perpendicular to direction of motion). Friction ([tex]f[/tex]), measured in newtons, is directed against motion, whereas normal force from ground to the foot ([tex]N[/tex]), measured in newtons, is in the upward direction. Then, resulting direction must be greater than 180º but less than 270º with respect to the axis of the direction of motion, which is found by the following formula:

[tex]\theta = 270^{\circ}-\tan^{-1} \frac{N}{f}[/tex] (1)

Where [tex]\theta[/tex] is the direction of the resultant force, measured in sexagesimal degrees.

If we know that [tex]N = 1200\,N[/tex] and [tex]f = 200\,N[/tex], then the direction of the resultant force is:

[tex]\theta = 270^{\circ}-\tan^{-1} \frac{1200\,N}{200\,N}[/tex]

[tex]\theta \approx 189.462^{\circ}[/tex]

The direction of the resultant force is approximately 189.462º.

The magnitude of the resultant force ([tex]F[/tex]), measured in newtons, is determined by Pythagorean Theorem:

[tex]F = \sqrt{f^{2}+N^{2}}[/tex]

[tex]F =\sqrt{(200\,N)^{2}+(1200\,N)^{2}}[/tex]

[tex]F \approx 1216.553\,N[/tex]

The magnitude of the resultant force is approximately 1216.553 newtons.

Answer:

See answer below

Explanation:

As the temperature of the air decreased, its particles lose kinetic energy, and there is a reduction in the average speed of the particles which collide with each other, and with the walls of the container which in turn reflects into the reduction of the air pressure in the container.

Answer:

B.) Pressure traps dissolved gases in magma

Explanation:

I hope this answer is correct

Answer:

B

Explanation:

The spring stretched 0.476 meter from equilibrium position.

The work done is given as,

                             [tex]workdone=\frac{1}{2}kx^{2}[/tex]

Where x is the distance stretched from  equilibrium position.

Given that,   [tex]k=440N/m,W=25J[/tex]

              [tex]25=\frac{1}{2}*440*x^{2} \\\\x^{2} =\frac{100}{440}=0.227\\\\x=\sqrt{0.227}=0.476m[/tex]

Therefore, the spring stretched 0.476 meter from equilibrium position.

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Answer:

See the answer below

Explanation:

The best thing one can do in this case would be to return the microscope's objective to low power and then re-center the specimen before switching back to high-dry power.

Most of the time, what makes the specimen under the microscope to be out of focus at higher objective powers after being in focus at low power is because they are not properly centered on the stage.  Hence, before calling on the instructor, it would be wise to first return to low power, re-center the specimen and bring it into focus after which the high power objective can be returned to and the fine focus adjusted to bring the image back to focus.

After doing the above and the specimen still does not come into focus, then the instructor can be called upon.

Answer:

The block moves at 1.25 m/s

Explanation:

Law Of Conservation Of Linear Momentum

It states the total momentum of a system of bodies is conserved unless an external force is applied to it. The formula for the momentum of a body with mass m and speed v is  

P=mv.  

If we have a system of two bodies, then the total momentum is the sum of the individual momentums:

[tex]P=m_1v_1+m_2v_2[/tex]

If a collision occurs and the velocities change to v', the final momentum is:

[tex]P'=m_1v'_1+m_2v'_2[/tex]

Since the total momentum is conserved, then:

P = P'

Or, equivalently:

[tex]m_1v_1+m_2v_2=m_1v'_1+m_2v'_2[/tex]

The bullet of m1=0.049 kg moves at v1=421 m/s. Then it strikes a wooden block of m2=4.7 kg originally at rest (v2=0).

After the collision, the bullet continues at v1'=301 m/s. The speed of the block can be calculated by solving for v2':

[tex]\displaystyle v'_2=\frac{m_1v_1+m_2v_2-m_1v'_1}{m_2}[/tex]

[tex]\displaystyle v'_2=\frac{0.049*421+0-0.049*301}{4.7}[/tex]

Calculating:

[tex]\displaystyle v'_2=\frac{5.88}{4.7}=1.25\ m/s[/tex]

The block moves at 1.25 m/s

Answer:

Described below

Explanation:

When you see a car behind you in the rear view mirror, it means that light rays travelling from the right hand side of the car driver behind are being reflected by the mirror to get to your eyes on the right side of the light rays from the drivers left hand side.

Answer:

C. Value

Explanation:

Science is the study of natural and observable measurable phenomenon based on evidence.

Science is not able to answer questions related to value because they are not based on on evidence or facts. Questions related to value can not be answered through scientific investigation.

Hence, the correct answer is "C. Value".

Answer:

the 2nd one is the right one

Explanation:

wave length is on top

The figure 2 correctly shows the part of the wave that represents the wavelength.

A wave is a dynamic disturbance that propagates and causes a change in equilibrium of one or more parameters in physics, mathematics, and related subjects. Quantities may oscillate regularly around an equilibrium (resting) value at certain frequency if a wave is periodic.

A travelling wave is one in which the entire waveform moves in one direction; in contrast, a standing wave is one in which two periodic waves are overlaid and move in the opposing directions.

In a standing wave, there are some points where the wave amplitude seems reduced or even zero, and these positions have null vibration amplitudes. A wave equation (standing wave field comprising two opposing waves) or a one-way wave equation (for single wave propagation in a certain direction) is frequently used to describe waves.

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Answer:

We know that, the kinetic energy

ke=  \frac{1 }{2} m{v}^{2}  

and we also know that the acceleration causes the speed's value to be doubled

Hence, v becomes 2v

When 2v is squared, it becomes 4v^2. After substituting this value in the equation above and comparing it,

We can conclude that the Kinetic Energy has increased

by a factor of 4

Answer:

she rode for 166.66 seconds , which is about 2 minutes and 47 seconds

Explanation:

We use the kinematic equation that relates initial and final velocities with time and distance travelled that is shown below:

[tex]distance=\frac{(v_i+v_f)*t}{2}[/tex]

which in our case gives:

[tex]distance=\frac{(v_i+v_f)*t}{2}\\500=\frac{(0+6)*t}{2}\\500=3*t\\t=\frac{500}{3} \,s\\t\approx 166.66\,sec[/tex]

which reduced to minutes gives 2 minutes and approximately 47 seconds

Answer: columbs

Explanation:

Electrical charge are measured in columbs, usually demoted as C. Hence, the charges on proton and electron will be measured in Coloumbs. It typically measures the amount of electricity conveyed per second by a current of 1 ampere. The other units Given such as ; Volt is used for measuring voltage, which is the pressure in an electrical source. AMPERE is used for measuring the current flowing through an electrical circuit.

Dalton is a unit of mass and is about 1.660 * 10^-27 kg

Answer:

2106 W

Explanation:

Given that

The coefficient of heat transfer, h = W/m².K

Area of cabin exposed to air, A = 9 m²

Initial ambient temperature, T1 = 33 °C

Final system temperature, T2 = 20 °C

To find the cooling rate needed, we use the formula

Q = h * A * ΔT

where, ΔT = T1 - T2

ΔT = 33 - 20

ΔT = 13 °C

Cooling rate, Q = 18 * 9 * 13

Cooling rate, Q = 2106 W

This means that the cooling rate needed is 2106 W

Answer:

1. Gravity

2. Increases

Explanation:

Gravity is the force that attracts all objects toward each other. This is the force that keeps us grounded on Earth instead of floating in the air.

Although people have gravitational forces, the attraction force is a negligible amount. However, as the mass of the objects are increased, they will exert  far greater gravitational powers to other objects or individuals such as humans.  

Answer: in cases neither of two equations in the system will contain a variable.

Explanation:

Answer:

Acceleration.

Explanation:

American football is one of the sports with the highest physical contact, along with boxing, mixed martial arts and rugby. Therefore, the risk of injury for players who play the sport is higher. However, many injuries in this sport have to do with blows to the head, where concussions occur that generate small neuronal short circuits due to the impact, which can cause fainting, amnesia and even vomiting.

This type of injury occurs due to the acceleration of the players when impacting their rival, which increases their strength (since it is known that the greater the acceleration the weight acquires a greater impact force).

Answer:

Acceleration causes the force of concussions for many professional football players.

Answer:

it snaps

Explanation:

the more force you put on it, the wired out it gets than it snaps. I think

Answer:

the cost to leave the lights on 24 hours a day for one year is 31,536 cents or 315.36 dollars

Explanation:

Given that;

P = 300 watts = 300/1000 = 0.3

t = 24hrs a day

In a calendar year, we have 365 days

so;

E = 0.3 × 365 × 24

E = 2628 KWh

given that;  1 KWh = 12 cent

then 2628  KWh is x

x = 2628 × 12

x = 31,536 cents or 315.36 dollars

Therefore, the cost to leave the lights on 24 hours a day for one year is 31,536 cents or 315.36 dollars

Answer:

no one really answers on here anymore but can u click on my profile and help me with my question

Explanation:

the answer is A homogeneous electric field has the same magnitude and direction at any place. A good example of a homogeneous field is the field between two charged metal plates. The field strength depends on the voltage U and the plate distance d.

The anomalous expansion of water refers to the fact that water, unlike most substances, expands when it freezes. The density of water increases as temperature decreases but reaches a maximum at 4° C then begins to expand.

When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

Answer:

See Explanation

Explanation:

Temperature affects the amount of sugar that will be dissolved in a liquid. It is general knowledge in chemistry that solutes tend to dissolve in hot solvents compared to cold solvents.

Hence, there is a positive relationship between dissolution of sugar in a liquid and increase in temperature.

To test this hypothesis, the variables are temperature and amount of solute. The volume of solvent and type of solvent must be held constant.

Different amounts of solute are dissolved in the same volume of solvent and heated to a constant temperature and the extent of dissolution of the sugar is observed for each experimental unit.

A control experiment is also set up in which different amount of sugar is dissolved in the same volume of solvent as above without heating and the results are compared.

Answer:

On Jupiter, the man would weigh  1.903 kN

Explanation:

Given that;

a mans weight is 720 N

on earth, g = 9.8 m/s²

so mass on earth will be;

m = F/g = 720 / 9.8 = 73.4693 kg

In Jupiter, g = 25.9 m/s²

so the man's weight in Jupiter will be;

F = mg

F = 73.4693 × 25.9

F = 1902.8549

F = 1.903 kN

Therefore, on Jupiter, the man would weigh  1.903 kN

Answer:

heat given , nature of body, and temperature rise

Answer:

a) Δd=v₂Δt+[tex]\frac {1}{2}[/tex]aΔt²

v₂=0 (hits ground)

Δd=[tex]\frac {1}{2}[/tex]aΔt²

Δt²=Δd÷[tex]\frac {1}{2}[/tex]a

t=√25÷[tex]\frac {1}{2}[/tex](9.8)  9.8m/s²=gravity

t=5÷4.8

t=1.04s

b) a=[tex]\frac{v_2-v_{1} }{t}[/tex]

a×t=v₂-v₁

v₂=(a×t)+v₁

v₂=(9.8×1.04)+20

v₂=10.192 + 20

v₂=30.192

v₂=30.2m/s rounded

Answer:

A. Gasoline

B. Apple juice

Explanation:

A homogeneous mixture can be defined as any liquid, solid or gaseous mixture which has an identical or uniform composition and properties throughout any given sample of the mixture. In Chemistry, all solutions are considered to be a homogeneous mixture.

For instance, aqueous hydrogen chloride, HCl(aq) is a homogeneous mixture. The aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride. This ultimately implies that, aqueous hydrogen chloride HCl(aq) is a solution of hydrogen chloride in water and it is commonly referred to as Hydrochloric acid.

Hence, the two mixtures that are homogeneous are gasoline and apple juice.

Answer:

A. Gasoline

B. Apple juice

A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. The salt water described above is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform.  The difference is that the composition of the substance is always the same. The amount of salt in the salt water can vary from one sample to another. All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution.

One characteristic of mixtures is that they can be separated into their components. Since each part of the mixture has not reacted with another part of the mixture, the identities of the different materials is unchanged.

Hence, the two mixtures that are homogeneous are gasoline and apple juice

Explanation: