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
Tomtit [17]
3 years ago
6

A Formula One race car with mass 770.0 kg is speeding through a course in Monaco and enters a circular turn at 235.0 km/h in the

counterclockwise direction about the origin of the circle. At another part of the course, the car enters a second circular turn at 190.0 km/h also in the counterclockwise direction. If the radius of curvature of the first turn is 125.0 m and that of the second is 100.0 m, compare the angular momenta of the race car in each turn taken about the origin of the circular turn. (Compare using the magnitudes of the angular momenta for each turn.)
Physics
1 answer:
Marat540 [252]3 years ago
4 0

Answer:

Explanation:

Given

mass of first car m_1=770 kg

speed =235 km/h\approx 65.27 m/s

radius of first turn=125 m

And Angular momentum is given by =mvr

Angular momentum of first car

L_1=770\times 65.27\times 125=6282,237.5 N-m/s

v_2=190\approx 52.77 m/s

r_2=100m

similarly L_2=770\times 52.77\times 100=4063290 N-m/s

\frac{L_1}{L_2}=\frac{r_1v_1}{r_2v_2}=\frac{125\times 65.27}{100\times 52.77}=1.546

Thus angular momentum of first car is 1.54 times of second one

You might be interested in
Please help right now!!! MARK BRAINLIEST
hram777 [196]
For #2.
(A) The resultant velocity of the boat is the hypotenuse of a right triangle with the sides being the river and boat velocities.
The Pythagorean theorem: h^2 = a^2 + b^2
then you can use: soh cah toa to find any angles.
(B) The river velocity is not opposing the direction of travel, it increases the boats velocity from 2m/s to 2.5m/s
5 0
2 years ago
A video game includes an asteroid that is programmed to move in a straight line across a 17-inch monitor according to the equati
Ainat [17]

Answer:

The asteroid's acceleration at this point is 2.71\ m/s^2

Explanation:

The equation that governs the trajectory of asteroid is given by :

x=6.5t-2.3t^3

The velocity of asteroid is given by :

v=\dfrac{dx}{dt}\\\\v=\dfrac{d(6.5t-2.3t^3)}{dt}\\\\v=6.5-6.9t^2

At some point during the trip across the screen, the asteroid is at rest. It means, v = 0

So,

6.5-6.9t^2=0\\\\t=0.971\ s                      

Acceleration,

a=\dfrac{dv}{dt}\\\\a=\dfrac{d(6.5-6.9t^2)}{dt}\\\\a=-13.8t                        

Put t = 0.971 s

a=-13.8\times 0.197\\\\a=-2.71\ m/s^2

So, the asteroid's acceleration at this point is 2.71\ m/s^2 and it is decelerating.

6 0
3 years ago
The following is the longitudinal characteristic equation for an F-89 flying at 20,000 feet at Mach 0.638. The Short Period natu
BartSMP [9]

Answer:

hello your question is incomplete  attached below is the missing part  

answer : short period oscillations frequency  = 0.063 rad / sec

              phugoid oscillations natural frequency ( w_{np} ) = 4.27 rad/sec

Explanation:

first we have to state the general form of the equation

= ( S^2 + 2\alpha _{p} w_{np} S + w^{2} _{np} ) (S^{2} + 2\alpha _{s} w_{ns}S + w^{2} _{ns}  ) = 0

where :

w_{np}  = Natural frequency of plugiod oscillation

\alpha _{p} = damping ratio of plugiod  oscilations

comparing the general form with the given equation

w^{2} _{np}  = 18.2329

w^{2} _{ns} = 0.003969

hence the short period oscillation frequency ( w_{ns} ) =  0.063 rad/sec

phugoid oscillations natural frequency ( w_{np} ) = 4.27 rad/sec

8 0
2 years ago
Section 2.2
Feliz [49]

Answer:

Speed changes at the rate of 24 m/s for each second over time.

Explanation:

We are told the object's acceleration is equal to 24 m/s²

Now we know that acceleration can also be defined as the rate of change of speed with time. Also speed has a unit known as m/s.

Thus, we can rephrase the acceleration in this question to mean;

Speed changes at the rate of 24 m/s for every second with time.

6 0
2 years ago
While playing Quidditch you throw the quaffle straight down to the person below you at
oee [108]

Answer:

the ans will be because it has 1.672

3 0
3 years ago
Other questions:
  • Which of these characteristics can only be attributed to a wave of red light? A) The energy of the wave travels in the same dire
    13·1 answer
  • Calculate the quantity of heat required to melt 5kg of ice​
    12·1 answer
  • A person pushing a horizontal, uniformly loaded, 25.30 kg wheelbarrow of length L is attempting to get it over a step of height
    7·1 answer
  • If an object moves in uniform circular motion in a circle of radius R = 1.0 meter, and the object takes 4.0 seconds to complete
    6·2 answers
  • In hydroelectric dams, gravitational potential energy is used to produce electrical energy. What is the mass of water that must
    10·1 answer
  • Which of these abiotic factors is most likely the reason some plants cannot live very close to the ocean?
    12·1 answer
  • Match the correct center and scale factor to each figure.
    12·1 answer
  • To test the strength of a retainment wall designed to protect a nuclear reactor,
    14·1 answer
  • 2. Which activity requires a scientist to use
    10·2 answers
  • A child has fallen while riding a bike. When should a bystander call 911 ?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!