PHYSICS HIGH SCHOOL

Calculate the resistance of a lamp that draw 0.75 A current when connected to 4.5 V.​

Answers

Answer 1
Answer: Calculate the resistance using the equation:

V=IR

In the question, the following values are given:

V = 4.5
I = 0.75

Substitute the values into the equation to find R, the resistance:

V = IR

4.5 = 0.75R

R = 4.5 / 0.75

R = 6 ohms

Related Questions

A fastball pitcher can throw a baseball at a speed of 40 m/s (90 mi/h). (a) Assuming the pitcher can release the ball 16.7 m from home plate so the ball is moving horizontally, how long does it take the ball to reach home plate? (b) How far does the ball drop between the pitcher’s hand and home plate?
According to Friar Laurence's philosophy, what is the ideal temperature?
After landing from your skydiving experience, you are so excited that you throw your helmet upward. The helmet rises 5.8 m above your hands. What was the initial speed of the helmet when it left your hands? Express your answer to three significant figures and include the appropriate units How long was it moving from the time it left your hands until it returned? Express your answer to three significant figures and include the appropriate units.
In a generator, mechanical energy is converted into which of the following? A.an electromagnet B.a moving rod C.a magnetic field D.electrical energy
PLEASE HELP. Really important

How does the color of an object affect its ability to emit or absorb thermal radiation?

Answers

Answer:

The darker the object, the better it emits heat, because it's a better absorber of light. On the other hand, a white object appears white because it reflects all the different wavelengths and absorbs little to no light. It doesn't absorb much energy, then, and puts off little to no heat.

Explanation:

Briana builds a circuit that has a resistance of 8.0 . What voltage should she apply to have a current of 0.8 A?

Answers

Given : R= 8.0 ohms  I= 0.8 amps 

Unknown: electric voltage (V)=?

Formula: V=IxR

Solution: V= 0.8 x 8.0=n

Answer: 6.4 volts (V) electric voltage

The correct answer is:

B. 6.4 V

A voltage 6.4 V should be applied to have a current of 0.8 A.

|Huntrw6|

Which cloud model uses some datacenters focused on providing cloud services to anyone that wants them, and some data centers that are focused on a single customer? A. Public cloud B. Hybrid cloud C. Multi-cloud

Answers

Answer:badge hunter lets go

Explanation:

sorry im badge hunting because i like badges

What is the mass of a pure platinum disk with a volume of 113 cm3? The density of platinum is 21.4 g/cm3.Give your answer in grams and kilograms.

Answers

The mass of the platinum if the volume is 113 cm³ and density is 21.4 g / cm³ is 2.418 kilograms or 2 kilograms and 418 grams.

What is density?

The density is the mass of a material substance per unit volume. d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density.

As an illustration, the density of Earth is 5.51 grams per cubic centimeter, whereas the density of water is 1 gram per cubic centimeter.

Given:

The volume of the platinum disk, V = 113 cm³,

The density of platinum, d = 21.4 g / cm³

Calculate the mass using density and mass relation as shown below,

density = Mass of the platinum  / Volume of the platinum

21.4 = Mass of the platinum  / 113

Mass of the platinum = 21.4 × 113

Mass of the platinum  = 2418.2 g

As we know 1 kg = 1000 grams,

Mass of the platinum = 2418.2 / 1000

Mass of the platinum  = 2.418 kg

Thus, the mass of the platinum is 2.418 kg.

To know more about Density:

brainly.com/question/6329108

#SPJ2
Multiply the density with the volume. You get 2418.2 grams or 2.4182 kilograms :)

Martha and Mary are trying to move an old toy Barbie Jeep that is broken up a hill. Martha is applying 35 N of force and Mary is applying 20 N of force. What is the net. force being applied to the box and is it balanced or unbalanced

Answers

Answer: Net Force is 15 N towards Martha

Its an unbalanced force

Explanation:

Bumper of a stationary bumper car. The momentum of the stationary car increases. Which happens to the momentum of the moving bumper car? It decreases. It stays the same. It is converted to inertia.

Answers

Bumper of a stationary bumper car. The momentum of the stationary car increases. Which happens to the momentum of the moving bumper car? It decreases. It stays the same. It is converted to inertia.

Bumper of a stationary bumper car. The momentum of the stationary car increases. The momentum of the moving bumper car It is converted to inertia.
Other Questions
At a given location in space, the magnetic field in an electromagnetic wave is increasing. How is the electric field changing at that same location? a. The electric field is increasing. b. The electric field is decreasing. c. The electric field is not changing.
An experiment is set up to measure the effect of a gasoline additive on fuel consumption rate (miles per gallon, or MPG). What would be the control in this experiment?
(PLEASE HELP) Identify the following as electromagnetic (E) or mechanical (M) waves.sound waves water waves radio waves ultraviolet waves waves in a wheat field
An object falls freely from height H. if it takes one second to travel last half of total displacement find height H priop to the fall.​