Please give me an easy to study experiment on this topic.

Answer:

A

Explanation:

Answer:

Explanation:

the SI base unit of mass length and time

mass =kg =kilogram

length=m=meter

time=s=second

Answer:

mass: kilogram length: metre time: seconds

Explanation:

Answer:

me to I have the same question

Explanation:

She can put an ice cube on each cup to see which cube melts faster.

First, we know two things:

We can also assume, because of the second thing, that all ice cubes have the same temperature.

Then, one way to know which cup has more temperature is to put one ice cube on each cup, then measure the time it takes for the cube to melt completely.

When you put the ice cube on the cup, it will start to "drain" the heat energy from the liquid. If the liquid has more temperature, more energy can the cube drain, thus faster it will change to the liquid phase.

Then with a single cube on each cup you will have enough evidence to determine which cup has more temperature.

If you want to learn more about heat, you can read:

https://brainly.com/question/13439286

A boat is pulled into a dock by means of a winch 20 feet above the deck of the boat. If the boat is moving toward the dock at 2 feet per second, when there is 25 feet of rope out. The rate at which the winch is pulling in the rope at this instant is 25 feet per second.

The correct answer is option G.

To solve this problem, we can use the concept of related rates. Let's denote the length of the rope as "r" and the distance between the boat and the dock as "d". We are given that the boat is moving towards the dock at a rate of 2 feet per second.

We need to find the rate at which the winch is pulling in the rope, which can be represented by the derivative dr/dt.

Using the Pythagorean theorem, we can relate the variables "r" and "d":

\(d^2 = r^2 + h^2\)

where h is the height of the winch above the deck of the boat. In this case, h is given as 20 feet.

Differentiating both sides of the equation with respect to time t, we get:

2d * dd/dt = 2r * dr/dt

Simplifying the equation, we have:

dd/dt = (r/dr) * (dr/dt)

We are given that when there is 25 feet of rope out (r = 25), the boat is moving towards the dock at a rate of 2 feet per second (dr/dt = -2).

Substituting these values into the equation, we have:

dd/dt = (25/-2) * (-2) = 25 feet per second

For more such information on: rate

https://brainly.com/question/29110645

#SPJ8

The question probable may be:

A boat is pulled into a dock by means of a winch 20 feet above the deck of the boat. If the boat is moving toward the dock at 2 feet per second, when there is 25 feet of rope out, what is the rate at which the winch is pulling in the rope at this instant?

A) -2.5

B) 1.5

C) -1.8

D) 1.2

E) 3.1

F) 2.4

G) 25

Secondary rainbow is dimmer than a primary bow as : there is a second reflection with loss of light. The colors are arranged in the opposite order of the primary bow that is  red on the inside instead of the outside.

The intensity of light is reduced further by the second reflection, therefore secondary rainbows are not as bright as primary rainbows. Fewer light rays go through four-step sequence than the three-step sequence and the color scheme of the secondary rainbow is opposite of the primary rainbow.

Double reflection in a drop produces a secondary bow and because of this extra reflection, the secondary bow is much dimmer and its colors are also reversed.

To know more about double rainbow, refer

https://brainly.com/question/7965811

#SPJ4

Acceleration

Now

Apply Newtons second law

To find frictional force we need coefficient of friction which is not given .

generally for car case the value of coefficient is 0.6-0.8 .

Putting max 0.8

Note:

Last part is assumption not accurate

The force acting on the sports car is the product of its mass and acceleration. The force on the car is 3300 N.

Force is an external agent acting on a body to deform it or to change it from the state of rest or motion. There are different kinds of forces such as frictional force, gravitational force, nuclear force, magnetic force etc.

Frictional force is acting as a hindrance to the motion of an object. The frictional force is the product of normal force and coefficient of friction.

According to second law of motion, force is the product of mass and acceleration.

Given mass m = 1000 Kg

change in velocity = 20 - 0 m/s

Acceleration = 20 m/s / 6.6 s

= 3.3 m/s².

Force = m a

= 3.3 m/s² × 1000 Kg

= 3300 N.

Now, product of this normal force and coefficient of static friction.

To find more on frictional force, refer here:

https://brainly.com/question/1714663

#SPJ2

The possible sums are: 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. So there are 10 possible values for x.

The number of ways to choose 2 balls from 5 balls is 5 choose 2, which can be calculated as 5! / (2! (5-2)!). This can also be written as 5C2. The result is 10. Hence, there are 10 possible sums that can be obtained by choosing 2 balls out of 5 balls numbered 1, 2, 3, 4, and 5.

Therefore, the possible sums are: 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11. So for x, there are 10 possible values.

You can learn more about combinition at

https://brainly.com/question/28065038

#SPJ4

Answer:

Option C, Turbines

Explanation:

An electric motor comprise of following components-

a) Magnets

b) Electric wire or solenoid

c) Motor shaft

Turbine is a component of power producing plant that is essential to rotate the shaft of the motor. Once the shaft is rotated, the electric coil placed between the magnets is also rotated. Rotating coil cut the magnetic fields to induce emf and hence electric current is produced from mechanical work (i.e rotation).

Hence, option C is correct

The equation below is completed by the chromium nucleus.

Chromium is mostly found in chromite. The locations where this ore can be found include South Africa, India, Kazakhstan, and Turkey. In an electric arc furnace, chromite is often reduced with carbon to generate chromium metal, as is chromium(III) oxide when it is reduced with silicon or aluminum.

An important mineral called chromium helps insulin work properly in the body by regulating blood sugar levels. Your body uses the hormone insulin to convert sugar, starchy carbs, and other foods into the energy you require for daily activities.

To know more about chromium nucleus visit:

https://brainly.com/question/681602

#SPJ1

Answer:

The iris

Explanation:

In the iris mohit have blue eyes Iris. The colored part of the eye which helps regulate the amount of light entering the eye. When there is bright light, the iris closes the pupil to let in less light. Ok so please mark me as brainleast

The current drawn by the bus is 73.3 ampere.

The amount of AC current that an amplifier uses when it is in use is referred to as "current draw." All channels are operated concurrently while measurements are taken for a range of idle loads, 1/8 of average full power, 1/3 of average full power, and full power.

P = IV, where P is power, I is current, and V is voltage, can be used to calculate power.We need to convert the power to watts and the voltage to volts:

59 hp = 44,000 W (since 1 hp = 746 W)

V = 600 V

The distance between the cables is not needed for this calculation.

We may now rearrange the equations to find I:

I = P/V = 44,000 W / 600 V = 73.3 A

Therefore, the current drawn by the bus is 73.3 A.

To know more about ampere visit:-

https://brainly.com/question/27415579

#SPJ1

Answer:

about 2.7liters for women and 3.7liters for men

Explanation:

In order to successfully train for a marathon, Jamar will need to focus on building his slow twitch fibers. These are the muscle fibers that are responsible for endurance activities, like long-distance running. Slow twitch fibers have a high capacity for aerobic energy production.

Fast twitch fibers, on the other hand, are better suited for short bursts of intense activity, like sprinting or weightlifting. These fibers have a high capacity for anaerobic energy production, which means they can produce energy quickly but fatigue more quickly as well.

While Jamar may want to build some fast twitch fibers to help with speed and power, the majority of his training should focus on building his slow twitch fibers. This can be achieved through a combination of endurance training, such as long-distance runs, and strength training exercises that specifically target the slow twitch fibers, like bodyweight squats and lunges.

To know more about muscle fibers visit:-

https://brainly.com/question/31200275

#SPJ11

Answer:

Distance = speed*time = (52/1.6)*0.25 = 8.125miles

Explanation:

(52/1.6)*0.25 = 8.125miles

The height of the cliff is 8.7 meters while 65kg mass falls off a cliff and hits the ground with the velocity of 18.25m/s.

Velocity is a measure of an object's speed and direction of motion. It is a vector quantity, meaning it has both magnitude (speed) and direction. Velocity is often represented by the symbol "v" and is usually measured in meters per second (m/s). The velocity of an object can be changed by applying a force to it, causing it to accelerate. The acceleration can be positive, negative, or zero, depending on the direction and magnitude of the force.

Calculation for finding height of the cliff

The equation of motion to find the height of the cliff

\(h = vi \times t + 1/2 \times a \times t^2\)

where h is the height of the cliff, vi is the initial velocity (which is 0 m/s because the object is starting from rest), t is the time it takes to fall, and a is acceleration due to gravity \((9.8 m/s^2)\).  Final velocity of the object \((18.25 m/s)\) to find t should be used.

\(vf^2 = vi^2 + 2\times a \times h\)

\(18.25^2 = 0 + 2 \times9.8 \times h\)

Hence,

\(h = (18.25^2) / (2 \times9.8) = 170.5625 m/s^2 / 19.6 m/s^2 = 8.7 meters\)

To know more about velocity, visit:

https://brainly.com/question/80295

#SPJ1

Answer: 35 m/s

Explanation: Gravitational acceleration only affects the vertical component of motion meaning the horizontal component never changes. This means 35 m/s is the correct answer.

A projectile is fired horizontally at an initial horizontal speed of 35 meters per second from a height of 65 meters, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar number.

Speed is calculated using the formula s=d/t, where s is the speed in m.s⁻¹, d is the distance in m, and t is the time in s.

Variable speed is when an object travels a different distance at the same time intervals, whereas uniform speed is when an item travels the same distance at the same time intervals.

Therefore, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

Learn more about speed, here:

https://brainly.com/question/13649166

#SPJ2

Answer: Any chemical reaction is an example of a chemical change. Examples include: Combining baking soda and vinegar (which bubbles off carbon dioxide gas)Jan 13, 2020

Explanation:

Question

Which particles act together to make atoms behave as solids

Answer:

Electrons. Mutually repel elections of other atoms when they get close

Explanation:

A demonstration of the behavior of particles as solids, liquids and gases. Crystals, on the other hand, aren't at all haphazard. Particles are held together by forces of attraction. Protons (+) and Electrons (-) Which subatomic particles act together to make atoms behave as a solids because they are found buzzing around the nucleus.

The findings of Fritz Zwicky and Jan Oort suggest the motion of neighboring stars in our galaxy and galaxies in the Coma cluster do not follow Newton's law of gravity.

In fact, the gravitational pull that dark matter appears to have on visible stuff is the only way that researchers have been able to deduce its existence. Dark matter, which makes up about 27% of the cosmos, appears to outnumber visible matter by a factor of nearly six to one.

Given the rates at which astronomers observe the galaxies revolving, the prevailing view among cosmologists holds that dark matter permeates nearly every galaxy and provides the extra gravity that prevents stars from swirling out into space.

Learn more about gravity here:

https://brainly.com/question/2888262

#SPJ4

The difference between the experimental value and the value on the bottle could be due to several factors. It is possible that the measuring instrument used during the experiment was not calibrated correctly or had some inherent error, leading to a discrepancy in the value obtained.

Additionally, factors such as human error, environmental conditions, and variability in the sample being tested could also contribute to the difference observed.

Determining which value is the most accurate would require further investigation. It is possible that the value on the bottle was obtained through a different method or under different conditions than the experimental measurement. In general, however, it is recommended to consider the experimental value as the most accurate, as it is based on direct measurement and is specific to the conditions and materials used in the experiment.

Ultimately, it is important to consider the accuracy and precision of any measurement, as well as any potential sources of error, in order to determine the most accurate value possible.

To know more about experimental value , refer

https://brainly.com/question/28347059

#SPJ11

The distance from the axis of the force applied is 2.05 m.

The distance from the axis of the force applied is calculated as follows;

The formula for torque;

τ = Fr

where;

Another formula for torque is given as;

τ = Iα

where;

τ = (mr²)α

τ = (25 kg x (0.925 m)²) x (1.84 rad/s²)

τ = 39.36 Nm

The distance is calculated as;

r = τ/F

r = ( 39.36 Nm ) / (19.2 N)

r = 2.05 m

Learn more about torque here: https://brainly.com/question/14839816

#SPJ1

Answer: 2.5 seconds

Explanation:

We know that the acceleration is:

a(t) = 1.7 m/s^2

To get the velocity function, we must integrate over time, and we will get:

v(t) = (1.7m/s^2)*t + v0

Where v0 is the initial velocity, in this case, we assume that we start at 23.6m/s, then the initial velocity is:

v0 = 23.6 m/s

Then the velocity equation is:

v(t) =  (1.7m/s^2)*t + 23.6 m/s

Now we want to find the value of t such v(t) = 27.8 m/s

Then:

v(t) =  27.8 m/s =  (1.7m/s^2)*t + 23.6 m/s

        27.8 m/s  - 23.6 m/s =  (1.7m/s^2)*t

         4.2 m/s = (1.7m/s^2)*t

         4.2m/s/(1.7m/s^2) = t = 2.5 s

Then at that acceleration, you need 2.5 seconds.

Answer:

(a) η = 0.1742 = 17.42 %

(b) W = 31.64 W

(c) m = 0.58 kg

Explanation:

(a)

The efficiency of a Carnot's engine is given as follows:

\(\eta = 1-\frac{T_2}{T_1}\)

where,

η = efficiency = ?

T₁ = source temperature = 100°C + 273 = 373 K

T₂ = sink temperature = 35°C + 273 = 308 K

Therefore,

\(\eta = 1 - \frac{308\ k}{373\ k} \\\)

η = 0.1742 = 17.42 %

(b)

Another formula for the efficiency of Carnot's Engine is:

\(\eta = 1 - \frac{Q_2}{Q_1}\)

where,

Q₁ = Input heat rate

Q₂ = Heat rejected = 150 W

Therefore,

\(0.1742 = 1 - \frac{150\ W}{Q_1}\\\\ \frac{150\ W}{Q_1} = 1-0.1742\\\\Q_1 = \frac{150\ W}{0.8258}\)

Q₁ = 181.64 W

Now, for the useful power output:

\(W = Q_1-Q_2\\W = 181.64\ W - 150\ W\\W = 31.64\ W\)

where,

W = Useful Output

W = 31.64 W

(c)

The heat required to condense steam i given as:

\(Q = mH\\Q_1t=mH\\m = \frac{Q_1t}{H}\)

where,

m = mass of steam condensed = ?

t = time = 2 h = 7200 s

H = Latent heat of condensation of steam = 2260 KJ/kg = 2260000 J/kg

Therefore,

\(m = \frac{(181.64\ W)(7200\ s)}{(2260000\ J/kg)}\)

m = 0.58 kg

Answer:

1. Genetic diversity are the differences in DNA among individuals within a species or population while ecosystem diversity is the number or variety of ecosystems within a particular area.

2. Genetic diversity is the genetic material of microorganisms,  plants and animals contains information that  determines the characteristics of all species and  individuals that make up the diversity of the living  world while the ecosystem diversity is the enormous range of terrestrial and  aquatic environments on earth has been classified into a number of ecosystems.

Those who favor the free trade policies would most likely believe that restrictions harm consumers.

A trade policy known as "free trade" does not impose import or export quotas. It also can be thought of as the market economy concept used in global trade. Political parties with economic liberal stances generally support free trade while protectingionism, which is the antithesis of free trade, is typically backed by parties with economic nationalism and left-wing stances.

The International Commerce Organization's international trade deals currently include the majority of countries as members.

To know more about  Free trade Policy:

https://brainly.com/question/3893045

#SPJ1

1. there are roughly 3 × 10^12 more electrons than protons in object A before the two objects come in contact.

2.  there are roughly 4 × 10^12 more protons than electrons in object B before the two objects come in contact.

3.  the net charge on object A after touching is -4.81 × 10^-7 C, and the net charge on object B is +4.81 × 10^-7 C.

The electron is described as a subatomic particle with a negative one elementary electric charge.

We divide the charge by the charge of one electron to get the number of  electrons are there than protons in object A before the two objects come in contact:

excess electrons = charge on object A / charge of one electron

= -4.81 × 10^-7 C / -1.602 × 10^-19 C

≈ 3 × 10^12 electrons

2.

we divide the charge by the charge of one proton to get protons that are there than electrons in object B before the two objects come in contact:

excess protons = charge on object B / charge of one proton

= 6.41 × 10^-7 C / 1.602 × 10^-19 C

≈ 4 × 10^12 protons

3.

charge on object A + charge on object B = 0

-4.81 × 10^-7 C + charge on object B = 0

charge on object B = 4.81 × 10^-7 C

Learn more about electrons at: https://brainly.com/question/860094

#SPJ1

Answer: I do not know (is this an RP question? ;-;)

Explanation:

Answer:

Applications in which ionizing radiation are not used are  

MRI

ultrasound

laser surgery

Explanation:

hope its right

bestfriend