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
Lena [83]
3 years ago
8

A friend asks you how much pressure is in your car tires. You know that the tire manufacturer recommends 30 psi, but it's been a

while since you've checked. You can't find a tire gauge in the car, but you do find the owner's manual and a ruler. Fortunately, you've just finished taking physics, so you tell your friend, "I don't know, but I can figure it out." From the owner's manual you find that the car's mass is 1550 kg. It seems reasonable to assume that each tire supports one-fourth of the weight. With the ruler you find that the tires are 16 cm wide and the flattened segment of the tire in contact with the road is 14 cm long. What answer will you give your friend?
Physics
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

25 psi

Explanation:

The weight of the car is:

W = mg

W = 1550 kg * 9.8 m/s²

W = 15,190 N

Divided by 4 tires, each tire supports:

F = W/4

F = 15,190 N / 4

F = 3797.5 N

Pressure is force divided by area, so:

P = F / A

P = (3797.5 N) / (0.16 m × 0.14 m)

P ≈ 170,000 Pa

101,325 Pa is the same as 14.7 psi, so:

P ≈ 170,000 Pa × (14.7 psi / 101,325 Pa)

P ≈ 25 psi

You might be interested in
My buddy and I have just finished a dive to 15 metres/50 feet for 60 minutes. We want to return to the same site and depth and s
marishachu [46]

Answer:

1) Periodically check the no stop or NDL time on their computers

2) The dive computer planning mode can be used if available

3) Make use of a dive planning app

4) Check data from the RDP table or an eRDPML

Explanation:

The no stop times information from the computer gives the no-decompression limit (NDL) time allowable which is the time duration a diver theoretically is able to stay at a given depth without a need for a decompression stop

The dive computer plan mode or a downloadable dive planning app are presently the easiest methods of dive planning

The PADI RDP are dive planners based on several years of experience which provide reliable safety limits of depth and time.

7 0
3 years ago
Guyss i need helpp plss plsss ​
garri49 [273]

Answer:

trees

Explanation:

referring to the tree to prove his/her point.

7 0
3 years ago
The number of electrons in an element with atomic number 20 is
Alex787 [66]

Answer:

the answer is calcium....

5 0
3 years ago
Read 2 more answers
Below is an oscilloscope trace from an AC supply. Calculate the frequency of the supply if each horizontal division represents 0
GuDViN [60]

Answer:

20 hertz of frequency produced.

Explanation:

\boxed{frequency = \frac{1}{period} }

Here we will find frequency and period should be in second, here given: 0.05 seconds

using the formula:

\boxed{frequency = \frac{1}{0.05} }

\boxed{frequency =20}

8 0
2 years ago
Question 4 (1 point)
Valentin [98]

cardiovascular endurance :))

4 0
3 years ago
Other questions:
  • A hockey puck on a frozen pond is given an initial speed of 20.0 m/s. If the puck always remains on the ice and slides 115 m bef
    10·1 answer
  • Shortly after exercising ________, people become less restrained in their aggressive responses to provocation.
    13·1 answer
  • A sensor is used to monitor the performance of a nuclear reactor. The sensor accu-rately reflects the state of the reactor with
    13·1 answer
  • The amount of pressure exerted by a solid is based on
    11·2 answers
  • A negative slope on the velocity vs. time graph indicates that the object is not accelerating​
    11·1 answer
  • A point charge Q is located a distance d away from the center of a very long charged wire. The wire has length L >> d and
    11·1 answer
  • What can a human still do better and faster than any machine learning solution<br>​
    9·1 answer
  • 4. You bought a block of cheddar from the grocery store. If you cut a small piece and a large piece from the same block of chees
    5·1 answer
  • Each statement below is a definition or an example of force, work, potential energy, or kinetic energy. Drag each into the box t
    10·1 answer
  • What happens to light when it strikes a concave or convex lens?.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!