The hot resistance of a 125V filament lamp is 500Ω. Determine the current taken by the lamp and its power rating.

Answers

Answer 1

Answer:

0.25 amps

Explanation:

V = IR

125 = I(500)

I = 0.25 amps


Related Questions

A body moves with constant speed but has an acceleration. This is possible if it

Answers

Answer:

This is possible if it moves in a circle.

Explanation:

hope this helps and is right :)

p.s. i really need brainliest

When a large truck pushes a small car with a given force, the small car is applying an _____and ____ force on the truck.

Answers

Answer:

Equal and opposite

Explanation:

Why is using fossil fuels considered unsustainable?

Answers

Answer:

Fossil fuels take millions of years to replenish

Answer:

Fossil Fuel is limited it is like coal there is a limit and it won't last forever. This also contributes that it is not safe for the environment as well as the safety and health of people. This is similar to when there are many factories around an area there is going to be a high percentage of respiratory diseases such as asthma.

What happend to the space pod in missing seconds?

Answers

Answer:

From our investigation of what forces are like in a collision, we learned that when two

objects collide, a force is exerted on each object. The two forces are in opposite

directions but the same strength. This allowed us to infer that an equal strength force

was exerted on the space station and the pod, but in opposite directions.

As a result, the space station and the pod are moving in opposite directions. We need to

learn more about the effects of collisions on each object’s motion so we can report back

to Dr. Gonzales at the space agency.

You will use physical materials to gather data about

forces in a collision. You will also notice how objects

are affected by collisions. Students will use their

data to infer the force direction for objects in a

collision.

Based on the velocity change of each object,

what did you infer about the direction of forces

during a collision?

• We observed that the velocity of each object changed during a collision, so we can infer

that a force had to be exerted on each object. However, the motion of the objects

changed in different ways.

• The object that was moving forward slowed down, so I can infer that the force must have

pushed backward on this object.

• The other object started moving forward, so the force must have pushed forward on that

object. If one force was backward and one force was forward, then the forces pushed

the objects in opposite directions.

Explanation:

Good Luck!

While frying French fries, Wanda burned her hand. Burns are examples of a:
a. skin abnormality.
b. homeostatic balance.
c. skin infection.
d. homeostatic imbalance.

Answers

Answer:

d. homeostatic imbalance

Explanation:

Answer:

It's D

Explanation:

I'm pretty sure but if im wrong I'll give you the points back <3

Hurry up.
When a tight fitting lid is run under hot water, the lid _________ as the temperature increases. Question 3 options: Expands Melts Breaks Contracts

Answers

Answer:

expands

Explanation:

An archer uses 2000J of energy to pull a bow string 0.15m. What is the force constant (k) of the bow string?

Answers

The answer has to be 50 J

The spring constant of the given bow spring is equal to  1.77 × 10⁵ N/m.

What is Hooke's law?

Hooke's law can be described as a law that states that the force (F) required to extend or compress a spring by displacement linearly with respect to that displacement along a straight line.

The spring force can be represented in the form of an equation:

F = -kx

where k is a spring constant of the spring and x is the deformation of the spring. The negative sign shows that force is restoring force.

The energy that can be stored in the spring when it is stretched is given by:

E = (1/2)kx²

Given, the energy stored in the spring when it is stretched, E = 1000J

The distance by which the bow spring is stretched, x = 0.15 m

2000 =  (1/2) × k (0.15)²

k = 1.77 × 10⁵ N/m

Learn more about Hooke's law, here:

brainly.com/question/13348278

#SPJ2

HELP ME PLEASE!!!THIS IS SCIENCE!!

Answers

The very first option is correct, as any other answer is either incorrect in terms of optics or does not stop you from seeing the apple.

Which magnets need electric current for magnetism?

Answers

Answer:An electromagnet is a magnet that works with electricity. It can be switched on and off. The coils are nearly always made of copper wire because copper is such an excellent electrical conductor. Electromagnets have many uses.Permanent magnets are mainly used in small generators, and they have the advantage that they don't need a power supply. Electric magnets are iron or steel wound with wire. When electricity passes through the wire, the metal becomes magnetic and creates a magnetic field.

Explanation:

the thumb is what to the phalanges?

Answers

Answer:

A thumb only has one joint and two phalanges. The thumb is referred to as “the big finger".

Brainlist pls!

guys pls help which one is it

Answers

Answer:

a mixture

since it had the power to separate as the question says

The atomic number is always equal to the total number of which is also equal to the total number of

Answers

Answer:

Protons; electrons.

Explanation:

An atom can be defined as the smallest unit comprising of matter that forms all chemical elements. Thus, atoms are basically the building blocks of matters and as such defines the structure of a chemical element.

Generally, these atoms are typically made up of three distinct particles and these are protons, neutrons and electrons. All the physical properties of a mineral result from the mineral's internal arrangement of atoms.

The atomic number is always equal to the total number of protons, which is also equal to the total number of electrons. Protons are the positively charged particles that make up an atom while electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

A chemical element is denoted by [tex] X_{Z}^{A} [/tex]

Where;

X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

Therefore, the number of neutrons = A - Z

2. The weights of four objects with different masses have been calculated to show how much each object would weigh on four different planets.Based on the table, which object would have the largest mass and greatest weight on Earth?
Weights of Four Objects on Four Planets
Planet 1
B 10 N
C 1 N
D 20 N
Planet 2
A 10N
C 0.2 N
D 4 N
Planet 3
A 100 N
B 20 N
D 40 N
Planet 4
A 5 N
B 1N
C 0.1 N

Answers

Answer:

d

Explanation:

Why does the plane, tied on a string onto the ceiling, move in a horizontal circle, and why doesn’t the plane move up and down?

Answers

Answer:

There’s a tangential velocity and centripetal force. The object moves in a circle because it’s falling towards the center of the circle (point directly under string) but the velocity is such that the object never gets closer to the center

Explanation:

A t-shirt cannon is fired into a crowd at a baseball game. The t-shirt with mass 0.17kg is fired, and the launcher (2.7kg) recoils at 1.7 m/s. Calculate the launch velocity of the t-shirt. Answer to 2 decimals

Answers

Answer:

Exactly 27 m/s

Explanation:

P=mv

P(cannon)=2.7*1.7

P(cannon)=4.59 kg*m/s

P(cannon)=P(tshirt)

4.59=0.17*v

v=27 m/s

PLEASE HELP ME!!! IREALLY NEED IT AND I WILL MARK BRAINLIST IF YOU ANSWER CORRECTLEY!!! mass of 0.22kg is oscillating on the planet Tatooine at a small angle from a light string of length 0.30m, with a period of 0.90s. What is the acceleration of gravity on Tatooine?

Answers

Answer:

The correct answer is 1.3Hz

Answer:

15 m/s

Explanation:

0.3 + 0.2 = 0.5

0.5 * 10 = 5

5 + 10 = 15

If a ball is rolling down a hill, it has both kinetic and potential energy. The ball has
38 J of potential energy because of its height and 80J of kinetic energy because
of its motion. How much mechanical energy does the ball have

Answers

The answer is 118 J :)

Explanation:

38 +80 = 118.

Please help me with these calculating velocity questions im so stressed out

Answers

Answer: -10m/s

Explanation:

Velocity is solved using the equation displacement over time. Part C shows a displacement or change in x of 30 and a change in time of 3 secs (7-10) so the equation would be 30m/3s= -10m/s it is negative because look at the slope. Its decreasing right? So that means the objects is slowing down which means it can't have a positive velocity

The net force of two forces F1 and F2 acting in the same direction is 85N.And if is 15N when they are exerted in opposite directions. Find the magnitudes of F1 and F2

Answers

Do you have like a graph to go off of?
Do you have a graph? Or like take a photo of the question because this one doesn’t make sense

i need help in (a) and (c)
please at least try​

Answers

I can’t see it can do next one again

I don't know please mark as brilliant

PLS HELP!! I will make brainliest!!

Which process is an example of a chemical reaction?

a. an iron nail rusting
b. bath water cooling while you take a bath
c. a piece of metal being heated until it expands
d. a glass window breaking when hit with a baseball​

Answers

Answer:

Rusting!

Explanation:

Rusting is a chemical reaction because it is the process of oxidation of a metal.  

Answer:

rusting

Explanation:

The engine of a 550kg car is producing a net force of 11,000N. What is its acceleration?

Answers

Answer:

Yeda

Explanation:

yshyei5rexwu drift hai used thakare I exam rest watu testing reddy

Answer:

20

Explanation:

(correct me if im wrong)

F = m×a

11000 = 550 × a

11000/550 = a

Acceleration =20

A weightlifter lifts a set of weights a vertical distance of 2.0 m. If a constant net force of 350 N is exerted on the weights, what is the net work done on the weights?

Answers

Answer:

700 Joules

Explanation:

The work done equals force times distance. Just multiply your two values there.

Side note: It would be more impressive if he'd done it in 1 second rather than 5. You know why? Because POWER=WORK/TIME. The less time it takes him to lift the weight with the same force and distance, the more powerful he is!

3 examples of newtrons 2 law

Answers

Explanation:

1) Kicking a ball.

2) Capture the ball by hand.

3) Push a car.

What are the units we measure length or distance in?















I have to type more to ask but I would greatly appreciate it if you guys could answer my question thank you very much

Answers

Answer:

U could measure it in area and in operations.

Answer:

meters, millimeters, kilometers, centimeters, inches, feet, yards, miles

A liquid has a specific heat of 9 J/g • °C and a solid has a specific heat of 3 J/g • °C. Which
substance, the solid or liquid will heat up faster? Which will cool down faster?

Answers

Explanation:

substances have been in direct sunlight for up to 60 minutes. ... cool the fastest? ... 0.60 J/g °C. Match & then label each substance with its specific heat capacity ...

Help pwease and tanks >:|

Answers

Answer:

B

Explanation:

Cause I think it is

A 3.00 kg cart on a track is pulled by a string so that it accelerates at 2.00 m/s/s. The force of tension in the string is 10.0 N. What is the force of friction on the cart?

Answers

Answer:

If the track is horizontal and the string is pulled horizontally, the friction on the cart would be [tex]4.0\; \rm N[/tex].

Explanation:

Let [tex]m[/tex] denote the mass of this cart, and let [tex]a[/tex] denote the acceleration of this cart.

[tex]m = 3.00\; \rm kg[/tex].

[tex]a = 2.00\; \rm m \cdot s^{-2}[/tex].

Apply Newton's Second Law to find the net force on this cart.

[tex]\begin{aligned}\text{Net Force} &= m \cdot a\\ &= 3.00\; \rm kg \times 2.00\; \rm m\cdot s^{-2}\\ &= 6.00\; \rm N\end{aligned}[/tex].

The following forces act upon this cart:

(downward) gravitational attraction from the earth,(upward) normal force from the track,(forward) tension from the string, and(backward) friction from the track.

Assume that the track is horizontal, and that the string was pulled horizontally. The normal force from the track would exactly balance the downward gravitational attraction from the earth. Hence, the [tex]6.00\; \rm N[/tex] net force on this cart would be equal (in size) to the size of the tension from the string ([tex]10.0\; \rm N[/tex]) minus the size of the friction from the track.

In other words:

[tex]\begin{aligned}&\text{Size of Net Force}\\ &= \text{Size of Tension} - \text{size of friction}\end{aligned}[/tex].

[tex]\begin{aligned}& 6.00\;\rm N = 10.0\; \rm N - (\text{size of friction})\end{aligned}[/tex].

[tex]\text{size of friction} = 10.0\; \rm N - 6.00\; \rm N = 4.0\; \rm N[/tex].

which material would you select to replace broken handle of electric kettle


please will mark as brainlist​

Answers

Answer:

hot glue

Explanation:

-insert the hot melt cylinder into the gun and wait until it heats up;

-gently apply a layer of substance to the crack;

-spread the hot glue in a thin layer over the surface;

-wait until it freezes.

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a
A
Question 1
Which of the following is the most accurate description of the relationship between velocity and acceleration?
Velocity and acceleration are the same thing.
O
Velocity is a type of acceleration.
Acceleration is a change in velocity.
Acceleration is positive and velocity is negative.
Question 2
An object that is undergoing a change in velocity is said to be-

Answers

Answer:

response

Explanation:

Acceleration is your changing Velocity. An object that is ACCELERATING is experiencing a change in velocity. usually positive. if an object such as a car reduces velocity, it is called deceleration

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