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
Ymorist [56]
3 years ago
12

U1=20 m/s turn it to km/h

Physics
1 answer:
notka56 [123]3 years ago
7 0
It is 72 km/h
I hope it helps
You might be interested in
In a crash test, a 2,500 kg car hits a concrete barrier at 13 m/s2 calculate the amount of force at which the car strikes the ba
Marta_Voda [28]

Answer:

32500N

Explanation:

Data obtained from the question include:

m (mass) = 2500 kg

a (acceleration) = 13 m/s2

F (force) =?

Force is the product of mass and acceleration. It is represented mathematically as:

Force = mass x acceleration

F = m x a

With the above formula, the force with which the car strikes the barrier can be obtained as follow:

F = m x a

F = 2500 x 13

F = 32500N

Therefore, the car will strike the barrier with a force of 32500N

8 0
3 years ago
Read 2 more answers
This type of telescope uses a lens to collect<br> light.
bezimeni [28]

Optical Telescopes....................................

7 0
3 years ago
A child bounces a 52 g superball on the sidewalk. The velocity change of the superball is from 20 m/s downward to 14 m/s upward.
marusya05 [52]

Answer:

Force on superball will be =9.8222\times 10^{-4}N

Explanation:

We have given mass of superball m = 52 gram = 0.052 kg

Velocity change from 20 m/sec downward to 14 m/sec upward

Let downward velocity is positive then upward velocity is negative

So downward velocity is + 20 m/sec and upward velocity is -14 m/sec

Time is given as 1800 sec

We know that acceleration is rate of change of velocity

So a=\frac{20-(-14)}{1800}=0.0188m/sec^2

According to newton second law

Force = ma = 0.052×0.0188 =9.8222\times 10^{-4}N

6 0
3 years ago
Read 2 more answers
How is resonance used in musical instruments?
9966 [12]

Answer:

The answer is B: to Amplify the sound

7 0
3 years ago
Read 2 more answers
Search about non-ohmic devices in 3 pages​
Tomtit [17]

Answer:

electronic diode,

Explanation:

Non-ohmic conductors are materials that do not obey ohm's law and they are electronic diode, transistors, tungsten, thermistors and vacuum tube etc.

7 0
3 years ago
Other questions:
  • Three forces act simultaneously on point j. one force is 10 newton's north
    11·1 answer
  • the kinetic energy of a bowling ball is 25 (kg-m^2/sec^2). if the mass is 2 kg, the what is the speed of the bowling ball
    7·1 answer
  • If sonic the hedgehog runs 40 meters in 5 seconds, what is his speed?
    9·1 answer
  • What is science? Science is observable, testable, replicable, reliable and flexible.
    8·1 answer
  • If you are at a train station and a train comes toward you, the train blows its whistle. as the train comes closer the whistle g
    10·1 answer
  • What are the units of potential difference??
    15·1 answer
  • In a women's 100-m race, accelerating uniformly, Laura takes 1.82 s and Healan 3.07 s to attain
    9·1 answer
  • Balanced forces acting on an object
    8·1 answer
  • . The average human walks at a speed of 5 km per hour. If your PE teacher asks you to walk for 30 minutes in
    9·1 answer
  • A child rides a carousel with a radius of5.1 that rotates with a constant speed of2.2 m/s. Calculate the magnitude of the centri
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!