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
a_sh-v [17]
3 years ago
15

How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The

proton is 1836 times heavier than an electron
Physics
1 answer:
ra1l [238]3 years ago
4 0

Answer:

If energy is conserved, then the sum of the potential energy and the kinetic energy is a constant.

Assuming the proton starts from rest, so it's kineitc energy is zero, but it has a potential energy, PE equal to:

PE = qV

where q =1.6 x 10^-19 C

and V = 1.00 V

Assuming the proton no longer experiences the potential energy and it is all converted to kinetic energy then:

PE* = 0,

KE* = 1/(2mv^2)

Now since

PE + KE = Total energy =PE* + KE*

Therefore,

qV + 0 = 0 + 1/2mv^2

Or

KE = qV = 1.6 10^-19 J

You might be interested in
What type of simple machine is found in a wheelbarrow?<br><br> Lever<br><br> Wedge
Semenov [28]

Answer: Lever

A wheelbarrow consists of a lever to be able to lift the material, and a wheel to be able to move it horizontally. So in a sense, a wheelbarrow is a complex machine consisting of two simple machines.

8 0
3 years ago
Read 2 more answers
Write the equation for eccentricity
Svetradugi [14.3K]
<span>e=ca{\displaystyle e={\frac {c}{a}}}.</span>

3 0
3 years ago
Planets A and B have the same mass, but planet A is half the size of planet B.
pychu [463]

Answer:

c. You would weigh less on planet A because the distance between

you and the planet's center of gravity would be smaller.

Explanation:

The statement that best describes your weight on each planet is that you would weigh less on planet A because the distance between you and the planet's center of gravity would be smaller.

  • This is based on Newton's law of universal gravitation which states that "the force of gravity between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distances between them".

Since weight is dependent on the force of gravity and mass, the planet with more gravitational pull will have masses on them weighing more.

  • Since the distance between the person and the center of the planet is smaller, therefore, the weight will be lesser.
7 0
3 years ago
Read 2 more answers
A 5.5-kW resistance heater in a water heater runs for 3 hours to raise the water temperature to the desired level. Determine the
Stella [2.4K]

Answer:

16.5 kwh and 59400 kJ.

Explanation:

kWh is a measure of energy that is equivalent to the power in kw times the number of hours the device worked.

In this case, it would be equal to:

E_{kwh}=5.5kw*3h=16.5kwh

1 kw also means 1kj of energy spent per second. With this, we calculate the amount of energy in kJ spent by the resistance:

E_{kJ}=5.5\frac{kJ}{s}*3h*\frac{3600s}{1h} = 59400 kJ

5 0
3 years ago
How does Newton's second law apply to an "Egg Drop" experiment?
Black_prince [1.1K]
Because an object in rest stays in rest until an unequal force pushes it so gravity is pushing on the egg making it drop
6 0
3 years ago
Other questions:
  • Which of the following accurately describes the way in which a muscle moves?
    7·1 answer
  • When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?
    15·2 answers
  • a truck is moving around a circular curve @ a uniform velocity of 13m/s. if the centifrical force on truck is 3,300N with truck
    12·1 answer
  • How do scientists determine the number of neutrons in an isotope of an atom? A. They find the number of protons. B. They divide
    8·2 answers
  • Under many conditions, the center of mass of a system of particles can represent the system as a whole. But how far does this ru
    14·2 answers
  • A 1 kg particle moves upward from the origin to (23) m. Wit is work done by the force of gravity which is in - y direction s B.
    12·1 answer
  • Look at the picture to answer :)
    11·1 answer
  • a group of students working in a high school chemistry lab believe they have discovered a new element! how exciting! upon furthe
    11·1 answer
  • PLZ HELP, GIVING BRAINLIEST!!
    6·1 answer
  • A small rock is thrown vertically upward with a speed of 17.0m/s from the edge of the roof of a 26.0m tall building. The rock do
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!