1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leona [35]
4 years ago
9

How much resistance does led bulb in a 4.5 volt flashlight provide if it draws .05 amps of current

Physics
1 answer:
marishachu [46]4 years ago
5 0

Answer:

90 Ω

Explanation:

Ohm's law states voltage is the product of current and resistance:

V = IR

Given V = 4.5 V and I = 0.05 A:

4.5 V = (0.05 A) R

R = 90 Ω

You might be interested in
What is hooke's law? Also what does it say about how elastic materials respond to force? Explain.
gogolik [260]
It <span>states that the force F needed to extend or compress a spring by some distance X is proportional to that distance.

For elastic materials, they extend more in same amount of force, (as they are directly proportional), due to it's elastic nature (presence of large deforming force)

Hope this helps!</span>
3 0
3 years ago
A mass m0 is attached to a spring and hung vertically. The mass is raised a short distance in the vertical direction and release
iragen [17]

Answer:

The frequency of the oscillations in terms of fo will be f2=fo/3

E xplanation:

T= 2pie\frac sqrt {m}{k}

 \frac {{f2}/times {fo}}=1:3

⇒f2=fo\3

Here frequency f is inversely poportional to square root of mass m.

so the value of remainder of frequency f2 and fo is equal to 1:3.

⇒\frac{f2} {f1} = \frac sqrt{m1}[m2}

⇒\frac{f2}{fo} = 1:3

⇒f2=\frac{fo} {3}

6 0
3 years ago
PLEASEEEE HELPPPPPPPPPPPP
lesantik [10]

Answer:

240 meter

Explanation:

d= s*d=60m/s * 4sec=240 meter

7 0
3 years ago
Plsss help me!!!!!!!!!
natali 33 [55]
It should be the B
Low frequency and long wavelength
6 0
3 years ago
Suppose a ball is dropped from shoulder height, falls, makes a perfectly elastic collision with the floor, and rebounds to shoul
Bezzdna [24]

Answer:Same magnitude

Explanation:

When ball is dropped from shoulder height h then velocity at the bottom is given by

v_1=\sqrt{2gh}

if it makes elastic collision then it will acquire the same velocity and riser up to the same height

If m is the mass of ball then impulse imparted is given by

J=m(v_2-v_1)

J=2m\sqrt{2gh}

Thus impulse imparted by gravity and Floor will have same magnitude of impulse but direction will be opposite to each other.

7 0
4 years ago
Other questions:
  • Why does water stay in a straw if you put your finger over it?
    15·1 answer
  • A vehicle traveling at a steady speed takes 4 hours to travel 244 km. calculate the average speed of this vehicle.
    8·1 answer
  • Which of the follwoing is not an example of an abiotic factor?
    11·2 answers
  • A circuit with several current paths, whose total current equals the sum of the current in its branches is a _____ circuit.
    15·2 answers
  • A swimmer bounces straight up from a diving board and falls feet first into a pool. she starts with a velocity of 4.00m/s4.00m/s
    14·1 answer
  • Using the standard convention "positive is up", what is the sign of the acceleration of a rock you throw up (a) as it is going u
    10·1 answer
  • The motor of a four wheeler traveling along a muddy trail generates an average power of 7.48 104 W when moving at a constant spe
    13·2 answers
  • A 12 kg deer is running with 126 kg•m/s of momentum. What is the deer’s velocity?
    9·1 answer
  • What accommodations can be made for people with impaired vision?
    8·1 answer
  • Why is acceleration not constant near the speed of light
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!