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
pav-90 [236]
3 years ago
8

A car can move from rest to 35 m/s in 5.0 seconds. It's acceleration is

Physics
1 answer:
lord [1]3 years ago
6 0

Answer:

A) 7.0 m/s²

Explanation:

Acceleration is found by using the formula:

  • a = Δv/Δt

This means the change in time divided by the time interval will give us the car's acceleration.

Since the car starts from rest, its initial velocity is 0 m/s. Its final velocity is 35 m/s. The time interval for the car to go from 0 to 35 m/s is 5.0 seconds.

  • a = (v - v₀)/t

Substitute the final and initial velocity into the formula.

  • a = (35 - 0)/5
  • a = 35/5
  • a = 7

The acceleration of the car is A) 7.0 m/s².

You might be interested in
Use the ratio version of Kepler’s third law and the orbital information of Mars to determine Earth’s distance from the Sun. Mars
frez [133]

Answer:

<em>1.49 x </em>10^{11}<em></em>

<em></em>

Explanation:

Kepler's third law states that <em>The square of the orbital period of a planet is directly proportional to the cube of its orbit.</em>

Mathematically, this can be stated as

T^{2} ∝ R^{3}

<em>to remove the proportionality sign we introduce a constant</em>

T^{2} = kR^{3}

k = \frac{T^{2} }{R^{3} }

Where T is the orbital period,

and R is the orbit around the sun.

For mars,

T = 687 days

R = 2.279 x 10^{11}

for mars, constant k will be

k = \frac{687^{2} }{(2.279*10^{11}) ^{3} } = 3.987 x 10^{-29}

For Earth, orbital period T is 365 days, therefore

365^{2} = 3.987 x 10^{-29} x R^{3}

R^{3} = 3.34 x 10^{33}

R =<em> 1.49 x </em>10^{11}<em></em>

8 0
3 years ago
Read 2 more answers
The uniform bar of mass m and length l is balanced in the vertical position when the horizontal force p is applied to the roller
WARRIOR [948]
Which of the following is NOT a factor in efficiency?<span><span>A.metabolism</span><span>B.type of movement</span><span>C.muscle efficiency</span><span>D.digestion</span></span>
7 0
3 years ago
Which bike rider has the greatest momentum?
Sphinxa [80]
My guesses would be g. or F
5 0
3 years ago
An experiment is set up to test the angular resolution of an optical device when red light (wavelength ????r ) shines on an aper
Neko [114]

Explanation:

As per Rayleigh criterion, the angular resolution is given as follows:

\theta=\frac{1.22 \lambda}{D}

From this expression larger the size of aperture, smaller will be the value of angular resolution and hence, better will be the device i.e. precision for distinguishing two points at very high angular difference is higher.

4 0
4 years ago
R,=4.00 R, = 1000.00
lisabon 2012 [21]

Answer:1000.00

Explanation:

6 0
3 years ago
Other questions:
  • Which activity best reflects a muscle movement working against gravity? a lifting the torso during a sit up b lowering the body
    13·2 answers
  • what is the acceleration of a bowling ball that starts at rest and moves 300m down the gutter in 22.4 sec
    10·1 answer
  • Coal is generally formed from high heat and pressure turning _____________ into a fossil fuel. oil and natural gas are generally
    14·1 answer
  • What is the formula to used to find work?
    9·1 answer
  • According to Le Châtelier’s principle, what happens when a system in equilibrium is subjected to a change?
    14·2 answers
  • Although the currents that cause this field are quite complicated, we can get a rough estimate of their size by modeling them as
    10·1 answer
  • An electron in a vacuum chamber is fired with a speed of 9800 km/s toward a large, uniformly charged plate 75 cm away. The elect
    10·1 answer
  • The diagram below depicts all the forces acting on an object. Use both vector resolution and vector
    12·1 answer
  • Im bored help me join this if u want with friends
    5·1 answer
  • I need a Science EXPERT some one who is really good at Science
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!