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
Lady bird [3.3K]
3 years ago
6

10-cm-long wire is pulled along a U-shaped conducting rail in a perpendicularmagnetic field. The total resistance of the wire an

d rail is 0.20 Ω. Pulling the wire with aforce of 1.0 N causes 4.0 W of power to be dissipated in the circuit.
What is the speed of the wire when pulled with a force of 1.0 N?
What is the strength of the magnetic field?
Physics
1 answer:
SCORPION-xisa [38]3 years ago
6 0

Answer: Speed = 4m/s

Strength = 7.1T

Explanation: P= 4.0w

N = 1.0

V= ?

Power = force x velocity

Velocity = power/ force

V= 4.0w/1.0N

V = 4m/s

Strength of the magnetic field

B = √PR / lv

Where; l = length 10cm

R= 2.0

P= 4.0w

V= 4m/s

B = √ (4.0w) × (2.0) / (10cm) × (4m/s)

B = 7.1T

You might be interested in
If Joey ran 60 meters in 10 seconds, then his velocity is ________ m/s.
BabaBlast [244]

Answer:

6 m/s

Explanation:

6 0
3 years ago
Read 2 more answers
How do I calculate the efficiency of motor
zepelin [54]

Answer:

the formula is efficiency = output / input × 100%

7 0
3 years ago
Can you guys please help me with this science quiz
Xelga [282]

Answer:

1 is 90, 2 is 200 and 3 is 5

Explanation:

im big brain so i know lol

8 0
2 years ago
A train increases its speed steadily from 10 m/s to 20 m/s in
rewona [7]

Answer:

15m/s

Explanation:

add the two speeds and divide by 2

10+20=30

30/2=15

3 0
3 years ago
Which shows the order of mechanical advantage from least to greatest?
Eduardwww [97]
What do you mean? I'm confused... You need to put the rest  of the question

3 0
2 years ago
Other questions:
  • Particle 1 and particle 2 have masses of m1 = 2.2 × 10-8 kg and m2 = 4.8 × 10-8 kg, but they carry the same charge q. The two pa
    11·1 answer
  • Pitch describes the loudness of a sound. <br> True False?
    5·1 answer
  • Two pans of a balance are 24.1 cm apart. The fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest
    15·1 answer
  • A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on the left. if you cut the ma
    14·1 answer
  • rce versus time during the collision of a 44- tennis ball with a wall. The initial velocity of the ball is 36 perpendicular to t
    8·1 answer
  • Review 1: A plane is located x = 40 miles (horizontally) away from an airport at an altitude of h miles. Radar at the airport de
    6·1 answer
  • Drag each label to the correct location.
    15·1 answer
  • An astronaut has a mass of 150 kg on earth. what would be the mass of the astronaut on the moon.
    15·1 answer
  • Which is an example of an exothermic process?
    12·1 answer
  • The way roughness of surfaces affects kinetic friction is called the __________ of kinetic friction?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!