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
Zinaida [17]
3 years ago
15

What is the acceleration of a ball rolling down a ramp that starts from rest and travels 0.9 m in 3 s?

Physics
1 answer:
cupoosta [38]3 years ago
3 0
Given:
u = 0, initial velocity
s 0.9 m, distance traveled.
t = 3 s, the time taken.

Let a =  the acceleration. Then
s = ut + (1/2)*a*t²
(0.9 m) = 0.5*(a m/s²)*(3 s)²
0.9 = 4.5a
a = 0.2 m/s²

Answer: 0.2 m/s²
You might be interested in
What relationship exists betwen air resistance and acceleration of falling objects
ololo11 [35]
They both make a thing go faster and slower but the relationship is force.
5 0
4 years ago
Read 2 more answers
In a given neuron, the current membrane potential is 60 mv. what does this tell you about the current potential compared to the
alekssr [168]

The membrane is depolarized compared to the resting membrane potential.

Through conformational changes from closed, nonconducting states to an open, current-conducting state, membrane depolarization activates sodium channels. Na+ channels open slowly and change from an open state to a nonconducting, rapidly inactivated state as a result of delayed openings, which contribute to the declining fraction of INa induced by prolonged depolarization. Additionally, sodium channels can move swiftly from the closed state to the fast-inactivated state. When the membrane is depolarized, inactivated channels are prevented from opening.

The distribution of channels between the closed and slow-inactivated states, however, limits the number of excitable sodium channels as a function of the membrane potential since slow inactivation acts at greater negative potentials than fast inactivation.

To learn more about membrane potential please visit-
brainly.com/question/8438145
#SPJ1

3 0
2 years ago
Light travels approximately 982,080,000 ft/s, and one year has approximately 32,000,000 seconds. A light year is the distance li
diamong [38]

So to solve this problem, we must convert units and then cancel units simultaneously:

(\frac{982,080,000ft}{s})*(\frac{32,000,000s}{1})*(\frac{12inches}{1ft})=3.77x10^{17} inches

Therefore we know that the distance that light travels in one year is 3.77x10^{17} inches.

7 0
4 years ago
Predict how heat would flow if beaker A is moved so that it's touching beaker B A. Heat would flow from beaker B to beaker A. B.
jek_recluse [69]
Zeroth Law of Thermodynamics, which in turn will mean the heat will transfer between both of them up to the point where they are in thermodynamic equilibrium. So the answer is C.
6 0
3 years ago
True or False: Newton's Second Law of Motion states acceleration depends on the objects mass and on the force acting on the obje
natulia [17]

That is true, i think.

8 0
3 years ago
Other questions:
  • A skydiver falls 3km in 15s. How fast are they going. i need my answer in meters! (20 PTS)
    13·1 answer
  • Select all that apply. The resistance to an object being pulled over a surface is called _____. starting friction, sliding frict
    11·2 answers
  • Any unit of acceleration MUST have the form of _____.
    11·1 answer
  • What is the gravitational potential energy of a 150 kg object suspended 5m above the Earth's surface
    13·1 answer
  • A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3
    8·1 answer
  • Electric current is the flow of charged particles called blank .
    14·2 answers
  • Tina is looking out a window and throws marble straight downward toward the sidewalk below at a speed of 5.00 m/s and the window
    14·1 answer
  • Jake designed an experiment to demonstrate a solar eclipse. The steps of the experiment are listed below.
    8·2 answers
  • Explain the purpose of capacitors.
    15·1 answer
  • Question 1 (1 point) There were 3 friends that decided to race their bikes down a hill without peddling. They all approached the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!