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
Kobotan [32]
3 years ago
7

I don't understand this question at all, can I please get some help?

Physics
1 answer:
beks73 [17]3 years ago
4 0
V^2/R=180W
v=root 180R
You might be interested in
A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040
Minchanka [31]

Answer:

r = 0.11 m

Explanation:

The radius of the proton's resulting orbit can be calculated equaling the force centripetal (Fc) with the Lorentz force (F_{B}), as follows:

F_{c} = F_{B} \rightarrow \frac{m*v^{2}}{r} = qvB (1)

<u>Where:</u>

<em>m: is the proton's mass =  1.67*10⁻²⁷ kg</em>

<em>v: is the proton's velocity</em>

<em>r: is the radius of the proton's orbit</em>

<em>q: is the proton charge = 1.6*10⁻¹⁹ C</em>

<em>B: is the magnetic field = 0.040 T </em>

Solving equation (1) for r, we have:

r = \frac{mv}{qB}   (2)

By conservation of energy, we can find the velocity of the proton:

K = U \rightarrow \frac{1}{2}mv^{2} = q*\Delta V   (3)

<u>Where:</u>

<em>K: is kinetic energy</em>

<em>U: is electrostatic potential energy</em>

<em>ΔV: is the potential difference = 1.0 kV </em>

Solving equation (3) for v, we have:

v = \sqrt{\frac{2q\Dela V}{m}} = \sqrt{\frac{2*1.6 \cdot 10^{-19} C*1.0 \cdot 10^{3} V}{1.67 \cdot 10^{-27} kg}} = 4.38 \cdot 10^{5} m/s  

Now, by introducing v into equation (2), we can find the radius of the proton's resulting orbit:

r = \frac{mv}{qB} = \frac{1.67 \cdot 10^{-27} kg*4.38 \cdot 10^{5} m/s}{1.6 \cdot 10^{-19} C*0.040 T} = 0.11 m

Therefore, the radius of the proton's resulting orbit is 0.11 m.

I hope it helps you!  

5 0
3 years ago
Which one of the following is an example of an indicator?
pshichka [43]
C: Litmus Paper. Red litmus paper turns blue in acids; blue litmus paper turns red in bases
5 0
3 years ago
Helppppp pleaseeee 25 points please?????
Sedbober [7]

Answer:

Where is question 12, we need it to answer this question

Explanation:

6 0
3 years ago
Compare 2,500 centimeters to 25 decimeters. How do each of these values compare to a meter, and which represents a longer length
Rom4ik [11]
2500 centimeters is 25 meters. 25 decimeters is 2.5 meters. 2500 centimeters is 10 times longer than 25 decimeters.
6 0
3 years ago
What do you mean by pressure​
noname [10]
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
P=F/A
8 0
3 years ago
Read 2 more answers
Other questions:
  • The thrust of a certain boat’s engine generates a power of 10kW as the boat moves at constant speed 10ms through the water of a
    13·1 answer
  • A friend claims that her car can accelerate from a stop to 60 mi/h (26.8 m/s) in 5.1 s , but the speedometer is broken. You deci
    11·1 answer
  • All describe the relationship of the parts of an electrical current except: _________.
    6·2 answers
  • Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, i
    8·1 answer
  • [25 points] Imagine two billiard balls on a pool table. Ball A has a mass of 7 kilograms and ball B has a mass of 2 kilograms. T
    9·1 answer
  • Question 3 (5 points)
    6·1 answer
  • What gas law applies to the situation you have described above. Why?
    13·1 answer
  • What is the specific heat of the masses in this experiment? Infer the substance the masses are made of and explain your inferenc
    11·2 answers
  • Air at 25°C and 5 atm is throttled by a valve to 1 atm. If the valve is adiabatic and the change in kinetic energy is negligible
    13·1 answer
  • How many sides does a dodecahedron have?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!