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
dimaraw [331]
3 years ago
6

A car travels 10.0 m/s. What is its velocity in km/h?

Physics
1 answer:
Vitek1552 [10]3 years ago
5 0
Since 1m/s=3.6 km/h, we can conclude that 10.0m/s = 36 km/h
You might be interested in
A pressure cylinder has a diameter of 150-mm and has a 6-mm wall thickness. What pressure can this vessel carry if the maximum s
myrzilka [38]

Answer:

p = 8N/mm2

Explanation:

given data ;

diameter of cylinder =  150 mm

thickness of cylinder = 6 mm

maximum shear stress =  25 MPa

we know that

hoop stress is given as =\frac{pd}{2t}

axial stress is given as =\frac{pd}{4t}

maximum shear stress = (hoop stress - axial stress)/2

putting both stress value to get required pressure

25 = \frac{ \frac{pd}{2t} -\frac{pd}{4t}}{2}

25 = \frac{pd}{8t}

t = 6 mm

d = 150 mm

therefore we have pressure

p = 8N/mm2

7 0
3 years ago
Sarah, who has a mass of 55 kg, is riding in a car at 20 m/s. She sees a cat crossing the street and slams on the brakes! Her se
avanturin [10]

Answer:

-2200 N

Explanation:

The change in momentum of Sarah is equal to the impulse, which is the product between the force exerted by the seatbelt on Sarah and the time during which the force is applied:

\Delta p=I\\m \Delta v = F \Delta t

where

m is the mass

\Delta v is the change in velocity

F is the average force

\Delta t is the duration of the collision

In this problem:, we have:

m = 55 kg is Sarah's mass

\Delta v = 0-20 = -20 m/s  is the change in velocity

\Delta t = 0.5 s  is the duration of the collision

Solving for F, we find the force exerted by the seatbelt on Sarah:

F=\frac{m\Delta v}{\Delta t}=\frac{(55)(-20)}{0.5}=-2200 N

Where the negative sign indicates that the direction of the force is opposite to that of Sarah's initial velocity.

5 0
3 years ago
The Burj Khalifa in Dubai is the world's tallest building. The structure is 828 m (2,716.5 feet) and has more than 160 stories.
Elena L [17]

Answer:

 h = 599.5 m

Explanation:

Given,

height of structure = 828 m

weight of the tourist = 184 lb

                                 = 184 x 0.45359 = 83.43 Kg

Potential energy = 187000 J

PE = m gd

d = \frac{PE}{mg}

d = \frac{187000}{83.43\times 9.81}

h = 228.5 m

Height of the room above the ground.

 h = 828 - 228.5

 h = 599.5 m

Height of the floor above ground is equal to 599.5 m.

4 0
3 years ago
Is this right? Please help me
morpeh [17]

Answer:

yes

Explanation:

4 0
2 years ago
Read 2 more answers
Explain the importance of having a support network when trying to achieve a healthy lifestyle. Who supports you when it comes to
Vadim26 [7]

Answer:

Who are the people for you then I can help you format the essay

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Determine for which class of lever the output force is always greater than the input force. for which class is the output force
    14·2 answers
  • If the force of the explosion was focused onto a smaller _____ of the window, then the pressure of the explosion on the window w
    9·2 answers
  • A star's transverse velocity depends on which two factors?
    6·1 answer
  • What is the current in a circuit with a 9.0 V battery and a resistance of 36.0 Ω?
    5·2 answers
  • Which of the following actions is best understood using Einstein's concepts rather than Newtonian physics?
    10·2 answers
  • What happens during the main sequence stage of a star?
    8·1 answer
  • Question 8 of 10
    13·1 answer
  • Which of the following describes the bending of light due to a change in its speed?
    13·2 answers
  • Which term describes energy stored inside the nucleus of an atom?
    10·1 answer
  • hich of the following needs is an addition to Maslow's original hierarchy and only appears in the eight-stage revised model
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!