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
pantera1 [17]
2 years ago
7

A car of mass 1200 kg, moving with a speed of 72 mph on a highway,

Physics
1 answer:
Keith_Richards [23]2 years ago
8 0

momentum(p) = mass(m) x velocity(v)

KE = kinetic energy = 1/2 mv²

a.

the ratio of the momentum of the SUV to that of the car

\tt \dfrac{mv}{1.5m\dfrac{2}{3}v }=1:1

b.  the ratio of the KE of the SUV to that of the car

\tt \dfrac{1/2\times mv^2}{1/2\times 1.5m\times (\dfrac{2}{3}v )^2}=\dfrac{mv^2}{1.5m\dfrac{4}{6}v^2 }=1:1

You might be interested in
Here is a graph of speed vs time. If the object is moving to the east, which BEST describes the speed and velocity of the graph?
Artemon [7]

Answer:

Both speed and velocity are changing.

Explanation:

They are both going up so both are changing

5 0
3 years ago
An object is lifted upward at a constant speed. The gain in potential energy of the object is due to the
Ann [662]

Answer:

b

Explanation:

7 0
3 years ago
if you have 10,000 red blood cells, how many red blood cells and white blood cells do you have altogether
ivolga24 [154]
I believe its 17,000 blood cells in your body 

6 0
3 years ago
What is the component in a car engine that would detect the need for air?​
Ipatiy [6.2K]

Answer:

Control of air–fuel ratio

Oxygen sensors tell the ECU whether the engine is running rich (too much fuel or too little oxygen) or running lean (too much oxygen or too little fuel) as compared to ideal conditions (known as stoichiometric).

Explanation:

4 0
3 years ago
(i) Calculate the energy, in electron volts, of a photon whose frequency is (a) 620 THz}, (b) 3.10GHz , and(c) 46.0 MHz
DedPeter [7]

The energy in electron volts of the photons that has the following frequencies is as follows:

  1. 620 THz = 2.564eV
  2. 3.10GHz = 1.28 × 10-⁵eV
  3. 46.0 MHz = 1.902 × 10-⁷eV

<h3>How to calculate energy?</h3>

The energy of a photon can be calculated using the following formula:

E = hf

Where;

  • E = energy
  • h = Planck's constant (6.626 × 10-³⁴ J/s)
  • f = frequency

First, we convert the frequencies to hertz as follows;

  • 620THz = 6.2 × 10¹⁴Hz
  • 3.10GHz = 3.1 × 10⁹Hz
  • 46.0MHz = 4.6 × 10⁷Hz

  1. E = 6.626 × 10-³⁴ × 6.2 × 10¹⁴ = 2.564eV
  2. E = 6.626 × 10-³⁴ × 3.1 × 10⁹ = 1.28 × 10-⁵eV
  3. E = 6.626 × 10-³⁴ × 4.6 × 10⁷ = 1.902 × 10-⁷eV

Learn more about energy of a photon at: brainly.com/question/2393994

#SPJ1

6 0
1 year ago
Other questions:
  • Which is most likely an example of pseudoscience?
    5·2 answers
  • How many milligrams are equivalent to 150 dekagrams?
    10·2 answers
  • Which of the following examples could be represented by this free body diagram? (Check all that apply)
    12·1 answer
  • Time period of a simple pendulum is measured at Karachi. What change will occur in the time period, if it is measured on mount e
    14·1 answer
  • 3. If there is an atomic mass of 47
    6·1 answer
  • PLEASE ANSWER ASAP BEFORE MY TEACHER AND MY MOM KILLES ME PLEASE ASAP
    8·2 answers
  • Momentum is mass times velocity, so another way to think of momentum is ____ in motion.
    9·1 answer
  • Zach, whose mass is 85 kg, is in an elevator descending at 8 m/s. The elevator takes 3.2 s to brake to a stop at the first floor
    9·1 answer
  • Wirte Different Methods of Transmission of heat? ​
    13·2 answers
  • A proton is projected into a magnetic field that is directed along the positive x axis. Find the direction of the magnetic force
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!