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
Debora [2.8K]
4 years ago
11

A particle travels 15 times around a 10-cm radius circle in 42 seconds. what is the average speed (in m/s) of the particle?

Physics
1 answer:
nikklg [1K]4 years ago
7 0
<span>Circumference = 2 * pi * r 62.8318 = 2 * 3.14159 * 10 cm 62.8318 * 15 rotations / 42 seconds = 22.44 cm / second 22.44 cm / 100 cm per meter = .2244 m / s</span>
You might be interested in
Katie rolls a toy car off the end of a table. Which path will the car follow when it leaves the table? A. B. C. D.
Dimas [21]

Answer:

parabolic path

Explanation:

As the cart reaches the end of the table with a horizontally directed velocity (only horizontal component), the cart will follow a parabolic path given by the combined action of:

(1) kinematic equation for motion under constant velocity in the horizontal direction (linear expression in terms of time), and

(2) kinematic equation for motion under constant acceleration (that of gravity) in the vertical direction (quadratic expression in terms of time)

8 0
3 years ago
Read 2 more answers
A butcher grinds 5 and 3/4 lb of meat then sells it for 2 and 2/3 pounds to the customer what is the maximum amount me that the
KiRa [710]

Answer:

The maximum amount of meat that the butcher can sell is  3\frac{1}{12}\:lb

Explanation:

The maximum amount can be found by taking the difference of mixed numbers.

5\frac{3}{4}-2\frac{2}{3}\\\\\mathrm{Subtract\:the\:numbers:}\:5-2=3\\\\\mathrm{Combine\:fractions:\:}\frac{3}{4}-\frac{2}{3}=\frac{1}{12}\\\\=3\frac{1}{12}\\

Best Regards!

8 0
3 years ago
1. acceleration → rate of change in velocity, which is the change in velocity divided by the change in time True False
miskamm [114]

Answer:

Yes, this is <em><u>true</u></em>. Hope this helps :)

7 0
3 years ago
(7) A 2500 lbm car moving at 25 mi/hr is accelerated at a constant rate of 15 ft/s2 up to a speed of 50 mi/hr. What is the force
balandron [24]

Answer:

The  force is  F =  1164.6\  lbf

The time is   \Delta t =  2.44 \  s

Explanation:

From the question we are told that

  The  mass of the car is  m  =  2500 \ lbm

   The  initial velocity of the car is u  =  25 \ mi/hr

   The final  velocity of the car is  v  =  50 \  mi/hr

  The acceleration is  a =  15 ft/s^2 =  \frac{15 *  3600^2}{ 5280} =  36818.2 \  mi/h^2

   

Generally the acceleration is mathematically represented as

      a =  \frac{v-u}{\Delta t}

=>   36818.2 =  \frac{50 - 25 }{ \Delta t}

=>   t = 0.000679 \  hr

converting to seconds

       \Delta t =  0.0000679 *  3600

=>     \Delta t =  2.44 \  s

Generally the force is mathematically represented as

        F  =  m * a

=>      F  =  2500 *  15

=>      F  =  37500 \ \frac{lbm *  ft}{s^2}

Now converting to foot-pound-second we have  

         F =  \frac{37500}{32.2}

=>        F =  1164.6\  lbf

7 0
3 years ago
What is the mass and volume of 1000kg/m3 of water?​
Jobisdone [24]

Answer: The mass would be 1000m3 and the volume would be 1000kg

Explanation:

4 0
3 years ago
Other questions:
  • A mis-hit golf ball flies straight up in the air. Exactly 4.0 seconds later it lands right next to the tee. How high up did the
    5·1 answer
  • The kicker now kicks the ball with the same speed as in the number of 4,but at 60.0°from the horizontal or 30.0° from the vertic
    12·1 answer
  • Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively. Which student must derive a u
    12·1 answer
  • A camcorder has a power rating of 12 watts. If the output voltage from its battery is 9 volts, what current does it use?
    7·1 answer
  • At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats faci
    8·1 answer
  • Si pudieras viajar a la Luna:
    13·1 answer
  • A coil of wire is connected to a galvanometer. When the coil is rotated in a magnetic field, the galvanometer records a current
    6·1 answer
  • Draw a conclusion, based on the solubility curves shown above, of which compound would have the greatest
    14·1 answer
  • Why can people go to the moon but they cant go to the bottom of the ocean??
    13·1 answer
  • Atp, or ____________ , provides energy for nerve impulse conduction, muscle contraction, and many other chemical reactions neces
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!