PHYSICS HIGH SCHOOL

Assume you have 3 light bulbs connected in a series circuit to a battery.What can you say about the current through each light bulb?
Current varies through all bulbs
There is no current through the bulbs
Current is the same through all bulbs

Answers

Answer 1
Answer:

Answer:

Current is the same through all bulbs

Explanation:

Because it's a series circuit, the current traveling through the circuit doesn't change. In a parallel circuit, however, the current would not be the same due to the different 'paths' of the circuit.

Related Questions

What sort of process converts the mechanized energy in the ocean into electricity?
Which of the following universal forces is the weakest? A. electric B. gravitational C. strong nuclear
A kilowatt-hour (kW-h) must be a unit of _____.A. mass B. force C. power D. energy
A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls in a layer at its bottom. Which change of state is shown in the model? condensation boiling sublimation freezing.
Why do objects move at constant speed

what is the kinetic energy of a 0.50 g insect traveling in a straight line at 5.0m/s? a)6.25J b) 1.25J

Answers

kinetic energy = 0.5 × mass × speed^2

Ek = 0.5 × 0.50 × 5^2

Ek = 6.25J

Does gravity exist between a pencil on a coffee mug

Answers

Answer:

Yes it does

Explanation:

Gravity is pushing down on the pencil but the coffee mug is also pushing the pencil up with the same amount of force so they both don't move

In a game of darts, the dart thrower releases the dart directly at the center of the target (the "bull’s eye") with a speed of 13.0 m/s, and the dart strikes the wall, 0.23 m directly below the center of the target. How far from the wall, along the x-axis, was the dart released?

Answers

Answer:2.81 m

Explanation:

Given

speed(u)=13 m/s

dart strikes 0.23 m below

i.e. vertical distance traveled by dart is 0.23 m

considering dart motion similar to Projectile

h=ut+(at^2)/(2)

0.23=0+(9.8t^2)/(2)

t=0.216 s

Horizontal distance travel by dart =u\times t

=13* 0.216=2.81 m

The Earlybird communications satellite hovers over the same point on Earth's equator indefinitely. This is because _____. A. its orbital period is 24 hours B. it is beyond the main pull of gravity C. it pulls as hard on Earth as Earth pulls on it D. it is kept aloft by ground control E. forces other than Earth's gravity act on it

Answers

A. its orbital period is 24
The Earlybird ... and every TV satellite ... hovers over the same point
on Earth's equator indefinitely because its orbit is continually adjusted
to ...

-- be in the plane of the equator,

-- be as perfectly circular as possible,

-- have a period exactly equal to the Earth's rotation period ...
about 23 hours 56 minutes 4 seconds, not 24 hours. 

Can you think of a scenario when the kinetic and gravitational potential energy could both be zero ? Describe or draw how this could be possible below

Answers

Both kinetic and gravitational potential energy can become zero at infinite distance from the Earth.

Consider an object  of mass m projected from the surface of the Earth with a velocity v.

The total energy of the body on the surface of the Earth is the sum of its kinetic energy (1)/(2) mv^2and gravitational potential energy -(GMm)/(R^2).

here, M is the mass of the Earth, R is the radius of Earth and G is the universal gravitational constant.

The gravitational potential energy of the object is negative since it is in an attractive field, which is the gravitational field of the Earth.

The energy of the object on the surface of the earth is given by,

E_i=(1)/(2) mv^2-(GMm)/(R^2)

As the object rises upwards, it experiences deceleration due to the gravitational force of the Earth. Its velocity decreases and hence its kinetic energy decreases.

The decrease in kinetic energy is manifested as  an equal increase in potential energy. The potential energy becomes less and less negative as more and more kinetic energy is converted into potential energy.

At a height h from the surface of the Earth, the energy of the object is given by,

E_h=(1)/(2) mv_h^2-(GMm)/((R+h)^2)

The velocity v_h is less than v.

When h =∞, the gravitational potential energy increases from a negative value to zero.

If the velocity of projection is adjusted in such a manner that the velocity decreases to zero at infinite distance from the earth, the object's kinetic energy also becomes equal to zero.

Thus, it is possible for both kinetic and potential energies to be zero at infinite distance from the Earth. In this case, kinetic energy decreases from a positive value to zero and the gravitational potential energy increases from  a negative value to zero.

Which statement(s) correctly compare the masses of protons, neutrons, and electrons?

Answers

FULL ANSWER

Neutrons and protons make up a nucleus and they are in the middle of an atom. Electrons surround the nucleus. Opposite charges attract each other. Because of this, protons do not attract other protons and electrons do not attract other electrons. Instead, protons attract electrons and electrons attract protons. When someone looks at the elements on the periodic table, they can see how many protons are present by looking at the atomic number. Since atoms have to have an equal amount of each, if an element contains 36 protons, it also has 36 electrons.
Other Questions
Which of the following do waves carry?a) matter b) energy c) matter and energy d) the medium
The heating of the lower layer of the atmosphere from radiation absorbed by certain heat- absorbing gasses is called ?
A student increases the temperature of a 556 cm3 balloon from 278 K to 308 K. Assuming constant pressure, what should the new volume of the view be? 320 cm3501 cm31232 cm3616 cm3
what organ absorbs excess water from undigested food prior to its release from the body as a solid waste