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
ziro4ka [17]
3 years ago
10

A car has a momentum of 20,000 kg • m/s. What would the car’s momentum be if its velocity doubles?

Physics
2 answers:
AnnyKZ [126]3 years ago
6 0

To answer this question, it helps enormously if you know
the formula for momentum:

           Momentum = (mass) x (speed) .

Looking at the formula, you can see that momentum is directly
proportional to speed.  So if speed doubles, so does momentum.

If the car's momentum is 20,000 kg-m/s now, then after its speed
doubles, its momentum has also doubled, to 40,000 kg-m/s.

Butoxors [25]3 years ago
4 0

A car has a momentum of 20,000 kg • m/s. What would the car’s momentum be if its velocity doubles? the answer is 40,000kg'm/s you welcome have a good day?!!

You might be interested in
The energy levels of a particular quantum object are -11.7 eV, -4.2 eV, and -3.3 eV. If a collection of these objects is bombard
gogolik [260]

To solve this problem it is necessary to apply an energy balance equation in each of the states to assess what their respective relationship is.

By definition the energy balance is simply given by the change between the two states:

|\Delta E_{ij}| = |E_i-E_j|

Our states are given by

E_1 = -11.7eV

E_2 = -4.2eV

E_3 = -3.3eV

In this way the energy balance for the states would be given by,

|\Delta E_{12}| = |E_1-E_2|\\|\Delta E_{12}| = |-11.7-(-4.2)|\\|\Delta E_{12}| = 7.5eV\\

|\Delta E_{13}| = |E_1-E_3|\\|\Delta E_{13}| = |-11.7-(-3.3)|\\|\Delta E_{13}| = 8.4eV

|\Delta E_{23}| = |E_2-E_3|\\|\Delta E_{23}| = |-4.2-(-3.3)|\\|\Delta E_{23}| = 0.9eV

Therefore the states of energy would be

Lowest : 0.9eV

Middle :7.5eV

Highest: 8.4eV

8 0
4 years ago
A theory will ‘grow up’ into a law. Question 1 options: True False
Paha777 [63]
It's false I thinkkkkkk
8 0
3 years ago
There is a Full Moon on September 14th. On which date will the New Moon occur? A.September 21st B.September 28th C.13th D.Octobe
hodyreva [135]

Answer:

the answer B

Explanation:

8 0
3 years ago
The density of a hippo is approximately 1030kg/m^3,so it sinks to the bottom of the freshwater lakes and rivers. A 1500kg hippo
hram777 [196]

Answer:

14,700 N

Explanation:

The hyppo is standing completely submerged on the bottom of the lake. Since it is still, it means that the net force acting on it is zero: so, the weight of the hyppo (W), pushing downward, is balanced by the upward normal force, N:

W-N=0 (1)

the weight of the hyppo is

W=mg=(1500 kg)(9.8 m/s^2)=14,700 N

where m is the hyppo's mass and g is the gravitational acceleration; therefore, solving eq.(1) for N, we find

N=W=14,700 N

8 0
4 years ago
A 150 kg mass is on a cliff 50 m high. What is its potential energy? 9 How much work is done moving a 2.5 kg book to a shelf 3.0
Mumz [18]
PE=mgh=150kg*9.8m/c² *50m=73500 J

W=F*d=mgd = 2.5*9.8*3.0 = 73.7J

W=mgh=68.0*7.62*9.8 =50.78 J
150 lb = 68.0 kg
25 ft = 7.62m
4 0
4 years ago
Other questions:
  • What is the energy of one mole of photons with a wavelength of 418 nm? (h = 6.63 10-34 J . s, N = 6.02 1023.)
    9·1 answer
  • Alan leaves Los Angeles at 8:00 a.m. to drive to San Francisco, 400 mi away. He travels at a steady 46.0 mph . Beth leaves Los A
    9·1 answer
  • Draw the vector c⃗ =1.5a⃗ −3b⃗
    9·1 answer
  • If an object has a mass of 14 kg, what is it’s weight
    9·1 answer
  • Which is a warning sign that someone needs the help of a mental health professional
    11·2 answers
  • A toy airplane is flying at a speed of 6 m/s with an acceleration of 0.3 m/s2.
    9·1 answer
  • Which of these statements describe friction? Check all that apply. Friction allows objects to slide over each other without any
    7·2 answers
  • Which statements below are true?
    6·1 answer
  • A 40kg mass is pulled by a horizontal force of 200N, with a constant velocity. What is h^2?
    10·1 answer
  • Which statement is true of a glass lens that diverges light in air?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!