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
bekas [8.4K]
3 years ago
5

A car traveling with constant speed travels 150 km in 7200s. What is the speed of the car?

Physics
1 answer:
LiRa [457]3 years ago
7 0
Speed= distance/time
Speed= 150000m/7200s=20.83m/s(cor.to.2d.p.)
You might be interested in
Can a physical quantity have different dimensions in different systems of units?​
Mars2501 [29]
Answer: yes a quantity have different dimensions in different system of units . No,because in different system of units doesn't change the quantity but it only changes the numerical.

Good luck !
4 0
3 years ago
Read 2 more answers
Which of these is an example of a mechanical wave
anastassius [24]
Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves. There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves.
6 0
3 years ago
A block with mass m = 0.450 kg is attached to one end of an ideal spring and moves on a horizontal frictionless surface. The oth
svetoff [14.1K]

Answer:

k = 26.25 N/m

Explanation:

given,

mass of the block= 0.450

distance of the block = + 0.240

acceleration = a_x = -14.0 m/s²

velocity = v_x = + 4 m/s

spring force constant (k) = ?

we know,

x = A cos (ωt - ∅).....(1)

v = - ω A cos (ωt - ∅)....(2)

a = ω²A cos (ωt - ∅).........(3)

\omega = \sqrt{\dfrac{k}{m}}

now from equation (3)

a_x = \dfrac{k}{m}x

k = \dfrac{m a_x}{x}

k = \dfrac{0.45 \times (-14)}{0.24}

k = 26.25 N/m

hence, spring force constant is equal to k = 26.25 N/m

8 0
4 years ago
Read 2 more answers
An object, with a final position of x = 100.1 meters, initially started at x = -12.13 meters. What was its displacement? (Unit =
nikklg [1K]

Answer:

112.23 m

Explanation:

Displacement is the final position minus the initial position.

Δx = x − x₀

Δx = 100.1 m − (-12.13 m)

Δx = 112.23 m

8 0
3 years ago
Work is always done when
dusya [7]
Its option 3 an object has potential energy
5 0
2 years ago
Other questions:
  • A parallel-plate capacitor is charged by connecting it across the terminals of a battery. If the battery remains connected and t
    15·1 answer
  • Scientific _____ must be supported by observations and results many investigations and are not absolute
    14·1 answer
  • The radar system of a navy cruiser transmits at a wavelength of 2.0 cm, from a circular antenna with a diameter of 2.0 m. At a r
    10·1 answer
  • All endothermic reactions absorb heat and make the surroundings warm
    8·1 answer
  • *Please Help!
    7·1 answer
  • Magnetic induction is used for what?
    15·1 answer
  • An electron and a proton are both released from rest, midway between the plates of a charged parallel-plate capacitor. The only
    12·1 answer
  • The dentisty of an object relies on both the _________ of the object.
    13·1 answer
  • What is Sl system define brefly​
    6·1 answer
  • A hiker yells out "Hello!" into a canyon. If the echo of their voice
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!