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
Oxana [17]
3 years ago
6

If a car is traveling 60 mph, its tires may have an rpm of 840. How many revolutions do the car’s tires make in one second?

Physics
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Forget about the car's speed.  You don't need it.

The tires spin 840 rpm.  That's 840 <em>Revolutions per Minute</em> .

There are 60 seconds in 1 minute.  So something that happens 840 times in 1 minute happens (840 / 60) times every second.

(840 rev per minute) / (60)  =  <em>14 revs per second</em> .

You might be interested in
A sky diver, mass 90 kg, reaches a terminal velocity of 60 m/s. What is the approximate magnitude of the force of air resistance
Komok [63]

Answer:

The approximate magnitude of the force of air resistance is 540 N.

Explanation:

6 0
2 years ago
Two identical projectiles, A and B, are launched with the same initial velocity, but the angle of launch is 75.0° and 15.0° resp
stepladder [879]
The answer is the range of A and B is equal
7 0
3 years ago
Read 2 more answers
What is magnetic resonance???​
Lyrx [107]

Answer:

procedure in which radio waves and a powerful magnet linked to a computer

Explanation:

Listen to pronunciation. (mag-NEH-tik REH-zuh-nunts IH-muh-jing) A procedure in which radio waves and a powerful magnet linked to a computer are used to create detailed pictures of areas inside the body. These pictures can show the difference between normal and diseased tissue.

5 0
3 years ago
Read 2 more answers
An action force and its reaction force are:
Soloha48 [4]

Answer:

b. equal in size and opposite in direction

6 0
3 years ago
Read 2 more answers
In question 8 from “Problems 2”, you calculated that an archery arrow shot with an initial velocity of 45 m/s at an angle of 10
Zigmanuir [339]

The distance traveled by the arrow and horizontal velocity are directly proportional, thus when the distance increases, an increase in initial velocity will allow the arrow to hit the target.

<h3>Time of motion of the projectile</h3>

If the horizontal distance the projectile would travel before hitting the target is 70.67 m, the time of motion of the projectile is calculated as;

X = Vx(t)

t = X/Vx

t = X/Vcosθ

t = (70.67) / (45 x cos10)

t = 1.6 s

When the archery target is moved further away from the archer, the archer needs increase the initial velocity of the arrow assuming the angle of projection is constant.

Since the distance and horizontal velocity are directly proportional to each other, thus when the distance increases, an increase in initial velocity will allow the arrow to hit the target.

Learn more about velocity of projectile here: brainly.com/question/12870645

6 0
2 years ago
Other questions:
  • Two ways to make peace with your body are to create a positive mental outlook and to
    12·1 answer
  • The cart is initially at rest. Force F⃗ is applied to the cart for time Δ t, after which the car has speed v. Suppose the same f
    15·1 answer
  • In an RC circuit, what fraction of the final energy is stored in an initially uncharged capacitor after it has been charging for
    11·1 answer
  • What is the kinetic energy of a 10-kg bicycle moving at 10 m/s?​
    10·1 answer
  • What tension must a 50.0 cm length of string support in order to whirl an attached 1,000.0 g stone in a circular path at 5.00 m/
    8·1 answer
  • Compute the dot product of the vectors u and v​, and find the angle between the vectors. Bold v equals 7 Bold i minus Bold j and
    6·1 answer
  • Two carts (m1 = m2 = 0.400 kg) are placed on an aluminum track. The first cart is pushed with the initial velocity of 1.5 m/s to
    8·1 answer
  • A stationary block of mass 35 Kg is suspended on a string.What is the tension in the string ?( Neglect the mass of the string)
    11·1 answer
  • explain why using a parabolic mirror for a car headlight throws much more light on the highway than a flat mirror.
    9·1 answer
  • How does a push or pull affect motion?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!