¿Qué valor de voltaje se requiere para que pasen 35 mA a través de una resistencia de 15 kΩ? Si se aplica ese mismo voltaje a una resistencia de 500Ω, ¿Cuál será la nueva corriente?

Answers

Answer 1

Answer:

perdón yo no hablo inglés


Related Questions

(a) A pendulum that has a period of 3.00000 s and that is located where the acceleration due to gravity is 9.79m/s2 is moved to a location where the acceleration due to gravity is 9.82m/s2. What is its new period

Answers

I assume this is the motion of the simple pendulum

T = 2π × [tex]\sqrt{\frac{L}{g } }[/tex]

=> [tex]\frac{T1}{T2 }[/tex] = [tex]\sqrt{\frac{g2}{g1} }[/tex]

Given T1= 3s g1= 9.79 g2= 9.82

=> T2 = 3.00459 s

a sound wave of frequency 1210 Hz has a wave speed of 343 m/s. what is the wavelength of the wave?

Answers

Answer:

wavelength = 0.28m

Explanation:

wavelength = velocity/ frequency

wavelength = 343/1210 = 0.28m


two projectile are thrown at the same intial velocity the angle of the one is theta ,the angle of the oher is 90-theta /can both projectile strict the ground at the distance and time interval of both when they are in arir?​

Answers

Answer:

Yes, if θ = 45°

Explanation:

Convert using chain link method 5.3 MIN/m² to N/mm²​

Answers

Answer:

hohdoqjqwfojiqjwiojdq

Explanation:

huehqofjoiqjdoiwjqiojfiwjfiojeqojefiqjojeqiojoiewqdqwwqdwqd

Which of the following biogeochemical cycles moves water through the atmosphere, surface, and crust of Earth?



A. Carbon cycle

B. Hydrologic cycle

C. Nitrogen cycle

D. Phosphorus cycle

Answers

Answer is (B) Hydrologic Cycle.

Explanation: The water cycle, also known as the hydrologic cycle, describes the continuous movement of water as it makes a circuit from the oceans to the atmosphere to the Earth and on again. Most of Earth's water is in the oceans. The sun, which drives the water cycle, heats water in the oceans.
The answer is B Hydrologic cycle

in complete sentnces write down everything you know about maps. What are they for?
how Do you use them?​

Answers

maps are for locating an area or a country

Explanation:

they are really beneficial because u will have the advantage to know every country and its location and lines of longitude and latitudes

Displacement vs. Time
80.0
60.0
40.0
20.0
Displacement (m)
0.0
-20.0
-40.0
-60.0
4.0
6.0
18.0
22.0
0.0 2.0
8.0 10.0 12.0 14.0 16.0 20.0
Time (s)
What is the velocity of the objected represented by the graph between 0.0 s and 4.0 s?
O 7.5 m/s
240 m/s
15 m/s
120 m/s

Answers

Please find attached photograph for your answer. Hope it helps. Please do comment. The option is c. 15m/s.

Two falling inflated balls of different masses
land at the same time.

Answers

Answer:

-The air resistance statement goes with the pieces of paper statements

-The force of gravity statement goes with the dog statements

-The acceleration due to gravity goes with the two inflated balls

How do Newton’s laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can pass a puck as quickly as possible?

Answers

Answer:

Newton's first law

Explanation:

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. Therefore, when the ice is smooth, friction gets lesser, and the force acted on that Puck will be decreased.

Answer:

The first law states that “objects at rest and objects in motion remain in motion in a straight line unless acted upon by an unbalanced force”. Keeping the ice smooth will make sure there is not friction, friction would slow the puck down

Explanation:

The first law states that “objects at rest and objects in motion remain in motion in a straight line unless acted upon by an unbalanced force”. Keeping the ice smooth will make sure there is not friction, friction would slow the puck down

Question 1 of 10
Rays bend as they pass through a boundary between two media. This is
called:
A. indention.
B. reflection.
C. refraction.
D. diffraction.

Answers

c because it passed through
C.) refraction

The rays bend during refraction so

School PlanSchool Plannerner

Answers

School Planners Designed To Your Exact Requirements. Create Student And Teacher Planners That Are 100% Relevant To Your School. Request Info. Pack Today.
A student planner is a planner given to students in order to create organization and better communication. With these planners being a part of the classroom experience, students are more likely to keep track of their assignments, set personal goals, and enhance communication between teachers, students and parents.

Give reason

It is more difficult to climb a vertical slope than a slanted slope because ​

Answers

Answer:

because in vertical slope force of gravity is more than compared to slanted slope

Answer:

because gravity is always pulling objects down so when you climb upward gravity weighs you down, you have to use effort to move yourself in the opposite direction that gravity is pulling you that is why it is harder to climb up a slope.

which part of vernier caliper is used to measure internal diameter of cylinder ​

Answers

Answer:

Circled in Red...plus the scales, of course.

Explanation:

50 POINTS!

Motion Diagrams: Observe each motion and describe how to object is moving. If the motion diagrams show more than one kind, highlight and label each kind. Please thoroughly explain. Thank you so much!

Answers

No:1

The object is moving with constant or uniform acceleration and in average speed

No:-2

The object is de accelerating

No:-3

The object deaccelerated and came to rest so fast.

No:-4

The object moves slowly first then accelerated.

No:-5

The object accelerated at first so fast then move with constant acceleration then again accelerated .


4. The modern particle theory of matter was generally accepted
in what century? Whose concept of matter was overturned by
this revolution in science?

Answers

Answer:

the modern particle theory of matter was accepted in the mid-ninteenth century. Aistotle's continoues theory of matter was overturned. They gave matter order and determine many of its properties. your welcome :)

Why is the level of glycerin initially decreases when heated ?​

Answers

Because glucerin is hotter so it decreases faster

Question 4 A car of mass 820 kg has a maximum power of 30 kW and moves against a constant resistance of motion to 910 N. Calculate the maximum speed of the car in the following situation; b)Up an incline (hill) of 8.75° to the horizontal?​

Answers

Answer:

P = W / t = m g s / t = m g v       where work by auto = m g s

30 kw = 30000 watts = 30000 J / s

Work wasted = F v       as shown above relating work and power

Work done against incline = m g s sin 8.75  and power against incline

= m g v sin 8.75 = 1222 v Joules / sec

power in moving auto = power available - power lost to friction

power in moving auto = 30000 - resistance = 30000 - 910 v

1222 v = 30000 - 910 v

v = 30000 / 2132 = 14 m/s

Note: constant resistance to motion must mean P = W / t = F s / t = F v

Maximum speed will be v = 14.07 m/s

What is power ?

Power is defined time rate of doing work or delivering energy.

Work done = Force * displacement

Power = work done / time

           = (Force * displacement ) / time

since , displacement / time = velocity

Power  = force * (displacement / time ) = force  * velocity

Power = mass * acceleration * velocity (  as force = mass * acceleration)

since , car is travelling up in an incline of 8.75° to the horizontal

hence , it will have two components of velocity

vertical component = v sin (theta ) = v sin(8.75°)

horizontal component = v cos (theta)= v cos (8.75°)

Power = m* a * v sin (theta )

          = 820 * 9.8  * v *sin (8.75°)                        ( a = g = 9.8 m[tex]/s^{2}[/tex])

         = 1221.472 v

Power lost due to resistance in motion  = 910 * velocity = 910 v

Power = Total power - power lost due to resistance in motion

           = 30 * [tex]10^{3}[/tex]  - 910 v

     

30 * [tex]10^{3}[/tex]  - 910 v = 1221.472 v  

v = 14.07 m/s

Maximum speed will be v = 14.07 m/s

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Two cars next to each other start moving in the same direction from rest, car A accelerates at m/s2 4 for 10 s and then travels at a constant speed, while car B accelerates at m/s2 5 until it reaches 25 m/s and then maintains This speed. What is the distance between the two cars when t = 15s?​

Answers

The answer is 145 because 100 mph is equal to 25th so 145

Twelve seconds after starting from rest an object falling freely will have a speed of

Answers

Answer:

(4.9)×(12)^2 m/s

Explanation:

velocity =1/2 × g× t^2

g=9.8m/s^2

t=12sec

A car travels 40 kilometers at an average speed of 80km/h and then travels 40 kilometers at an average speed of 40km/h. The average speed of the car for this 80-km trip is

Answers

Speed = distance / time

Part 1: 40 km at 80 km per goir = 0.50 hours

Part 2: 40 km at 40 km per hour = 1 hour

The time of the trip was 1.5 hours

Total distance was 40 + 40 = 80 ins.

Speed = distance / time = 80/1.5 = 53.33 km/he ( round answer as needed)

Suppose 2kg of glycerine have a temperature of 30°C. Heat is supplied to a steady rate of 100W. The temperature after 35 minutes is 75°C.
Calculate the specific heat capacity of glycerine.

Answers

Answer:

210000.................

The specific heat capacity of glycerine is 2333.3 J/(kg·K).

We can use the formula for heat (Q) absorbed by a substance:

Q = mcΔT

Where Q is the heat absorbed, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.

We know the mass of glycerine (m = 2 kg), the time for which heat is supplied (t = 35 minutes = 2100 seconds), the rate of heat supply (P = 100 W), the initial temperature (T1 = 30°C = 303 K), and the final temperature (T2 = 75°C = 348 K).

First, we need to calculate the total heat absorbed by the glycerine:

Q = Pt

Q = 100 W × 2100 s

Q = 210000 J

Next, we can calculate the change in temperature:

ΔT = T2 - T1

ΔT = 348 K - 303 K

ΔT = 45 K

Finally, we can calculate the specific heat capacity of glycerine:

c = Q/(mΔT)

c = 210000 J/(2 kg × 45 K)

c = 2333.3 J/(kg·K)

Therefore, the specific heat capacity (c) = 2333.3 J/(kg·K).

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Help, I really need to solve this right away!!

Answers

Answer:

can you like zoom in i cant see that much.

Explanation:

It’s 25 to the nearest square

An airplane with a total mass of 950 kg has an engine malfunction, causing it
to provide a constant horizontal force of 3000 N. The pilot, who has a mass
of 65 kg, decides to eject from the airplane. With the reduced total mass,
what is the new approximate acceleration of the airplane?
A. 3.7 m/s2
B. 2.8 m/s2
C. 3.2 m/s2
D. 3.4 m/s2

Answers

Answer:

3.4 m/s2

Explanation:

Multiple choice Questions about the statement true and how you can be separated by filtration and the way you treat your business and your business to make your life easier and easier to understand and understand the importance of life and damage

The new approximate acceleration of the airplane will be D. 3.4 m/s2

What is Newton's second law of motion ?

Newton's second law of motion  states that the time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it.

Initial mass = 950 kg

mass of piolet = 65 kg

reduced mass = 950 - 65 = 885 kg

according to Newton's second law of motion

force = mass * acceleration

3000 N = 885 kg * acceleration

acceleration = 3000 / 885  = 3.39 m/s^2 = 3.4 m/s^2

correct answer is D. 3.4 m/s2

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The length, breadth and height of a box is 50cm, 20cm and 10cm respectively then find surface area of its base and volume.

Answers

Surface area of base: 1000cm^2
When calculating surface area of just the base, we ignore the height. Therefore, we just multiply the length and height values.
50cm x 20cm = 1000cm^2

Volume = 10,000cm^3
Volume of a box is calculated by multiplying length by breadth by height.
50cm x 20cm x 10cm = 10,000cm^3

Hope this helped!

I just hope this pic will help you

A lot of energy is not stored in biomass, but is used for biological processes instead. Which process
releases thermal energy?

Answers

Explanation:

Respiration releases energy - it is an exothermic process. This means it releases heat energy.

The process which releases thermal energy is respiration.

What is thermal energy?

The energy which increase the temperature is called the thermal energy.

Biomass energy is created but can not be stored. Same way, the respiration process which releases heat in form of air from nose or mouth. This process is exothermic.

Thus, Respiration releases thermal energy.

Learn more about thermal energy.

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The most suitable unit for expressing nuclear radius is

A) micro B) nanometre
C) fermi D) angstrom

Answers

Answer:

Fermi is used to express nuclear radius

Answer:

the most suitable unit for expressing nuclear radius is Fermi.

If the magnetic flux through a certain region is changing with time: _________

a. a current must flow around the boundary
b. a magnetic field must exist at the boundary
c. an electric field must not exist at the boundary
d. an emf must exist around the boundary energy must be dissipated as heat

Answers

Answer:

It's option d. an emf must exist around the boundary

Explanation:

The Faraday's law states that an emf must exist around the boundary whenever there is a change occurring in the flux of a magnetic field.

A mass of 20kg which moved vertically produced a momentum of 300kg.m/s, how much power was needed to move the mass?

Answers

Answer:

Power is 3000 W

Explanation:

Momentum = mass × velocity

[tex]300 = 20 \times v \\ velocity = 15 \: {ms}^{ - 1} [/tex]

For power:

[tex]P = \frac{force \times distance}{time} \\ \\ P = force \times ( \frac{distance}{time} )[/tex]

but distance/time is velocity, so:

[tex]P = force \times velocity[/tex]

but force = mass × acceleration:

[tex]P = (mass \times acceleration) \times velocity \\ P = (20 \times 10) \times 15 \\ P = 3000 \: \: watts[/tex]

[ taken acceleration to be 10 m/s² ]

What is the speed of a vehicle with a distance of 88 miles and a time of 4 hours????

Answers

The answer you are looking for is 22 mph.

Solution:

s=speed

d=distance

t=time

Setting up the formula for the speed of an object with distance and time:

s=d/t

Substituting the given values,

s=88 miles/4 hours

So, therefore, the final answer is 22 mph.

I hope this helped answer your question for you. Good day to you.

Answer:

352 miles answer

Explanation:

guessing that he kept going in a constant speed of 88 miles first you multiyply 88x4 which gives you 352 hoped it helped

What product is formed by a reaction in which the hydrogen atoms of an acid are replaced by
the atoms of a metal?
A base
An oxide
A salt
An acid

Answers

The reaction of Acids with most metals and, when they do, a salt is produced without water.