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
Mekhanik [1.2K]
3 years ago
6

Calculate the speed of a car that covers a distance of 108km in 30 mins

Physics
1 answer:
Blababa [14]3 years ago
5 0

The speed of the car is 60 m/s

Explanation:

The speed of an object is a scalar quantity telling "how fast" the object is moving, regardless of its direction. It can be calculated as follows:

speed=\frac{d}{t}

where

d is the distance covered

t is the time taken

For the car in this problem, we have

d=108 km =1.08\cdot 10^5 m is the distance covered

t=30 min \cdot 60 =1800 s is the time taken

Subsituting into the equation, we find the speed:

speed=\frac{1.08\cdot 10^5}{1800}=60 m/s

Learn more about speed:

brainly.com/question/8893949

#LearnwithBrainly

You might be interested in
The smallest separation resolvable by a microscope is of the order of magnitude of the wavelength used. What energy electrons wo
hjlf

Answer: a) for 150 Angstroms 6.63 *10^-3 eV; b) for 5 Angstroms 6.02 eV

Explanation: To solve this problem we have to use the relationship given by De Broglie as:

λ =p/h where p is the momentum and h the Planck constant

if we consider the energy given by acceleration tube for the electrons given by: E: e ΔV so is equal to kinetic energy of electrons p^2/2m

Finally we have:

eΔV=p^2/2m= h^2/(2*m*λ^2)

replacing we obtained the above values.

6 0
3 years ago
Jack has two boxes. One is 148g and one is 78g. If jack pushes both boxes with the same amount of force, which will accelerate f
Step2247 [10]
The 78g box, since it has less weight, would accelerate faster. If you had a frictionless surface, and you conducted this experiment, both boxes, without any outside forces, would accelerate at the same rate forever. However, in this problem we must assume the surface is not frictionless. Friction is determined by weight; the more weight, the more friction. Since the 78g box has less weight, it has less friction, making it easier to push with less force.
8 0
3 years ago
Although all sports require a person to be in shape to some degree, some
Alexandra [31]

Answer:

Chess

Explanation:

Chess is considered a sport

3 0
2 years ago
______ is most resistant to thermal energy transfers. a. copper wire b. aluminum foil c. water d. foam insulation
Reika [66]

Answer:

Water

Explanation:

Because it does not conduct much energy.

8 0
3 years ago
A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model
Lesechka [4]

Answer:

Subtract the atomic number from the mass number

Explanation:

The number of neurons in an atom is equal to the difference between the atomic number and the mass number

5 0
1 year ago
Other questions:
  • Find the net force and acceleration. 10 points. Will give brainliest.
    7·2 answers
  • You're driving in a car at 50 km/h and bump into a car ahead traveling at 48 km/h in the same direction. the speed of impact is
    7·1 answer
  • How to draw and label a diagram to show how you would separate each mixture
    9·1 answer
  • In a velocity versus time graph, what does the slope of a line at any point indicate?
    9·1 answer
  • List the parts of the electromagnetic spectrum from longest wavelength to shortest wavelength
    11·1 answer
  • 3. A model rocket takes 0.05 seconds to speed up from rest to its maximum velocity of 80 m/s.
    14·2 answers
  • What is the effect of divorce on females?​
    8·2 answers
  • What conclusions can you make if a hockey goalie fails to block pucks shot in the upper right hand corner of the net
    10·1 answer
  • Question 9 of 34
    8·1 answer
  • Approximately how much air is in a column 1-cm2 in cross section that extends from sea level to the top of the atmosphere?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!