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
Citrus2011 [14]
3 years ago
6

Which of the following are scalar quantities?

Physics
1 answer:
kirill [66]3 years ago
3 0

Speed, being a scalar quantity, is the rate at which an object covers distance. The average speed is the distance (a scalar quantity) per time ratio. ... Velocity is the rate at which the position changes. The average velocity is the displacement or position change (a vector quantity) per time ratio.

You might be interested in
A flatbed truck is carrying a 20.0 kg crate along a level road. the coefficient of static friction between the crate and the bed
Dahasolnce [82]
<span>3.92 m/s^2 Assuming that the local gravitational acceleration is 9.8 m/s^2, then the maximum acceleration that the truck can have is the coefficient of static friction multiplied by the local gravitational acceleration, so 0.4 * 9.8 m/s^2 = 3.92 m/s^2 If you want the more complicated answer, the normal force that the crate exerts is it's mass times the local gravitational acceleration, so 20.0 kg * 9.8 m/s^2 = 196 kg*m/s^2 = 196 N Multiply by the coefficient of static friction, giving 196 N * 0.4 = 78.4 N So we need to apply 78.4 N of force to start the crate moving. Let's divide by the crate's mass 78.4 N / 20.0 kg = 78.4 kg*m/s^2 / 20.0 kg = 3.92 m/s^2 And you get the same result.</span>
6 0
3 years ago
Which of the following type of personal debts is usually considered wise and justified? A. credit card purchases of luxuries tha
NeTakaya

Answer:

C. Money to pay off other debts and interest

3 0
3 years ago
Read 2 more answers
a skinny girl devours food that is equivalent to 600 kcal, as she is anorexic she repents and wants to lose twice as many calori
blondinia [14]

Answer:

Explanation:

Work done in lifting the weight once = mgh

= 20 x 9.8 x (1.9+1.7)

= 705.6 J  

= 705.6 / 4.2 calorie

= 168 cals

Total energy to be spent = 600 x 10³ cals

No of times weight is required to be lifted

= 600 x 10³ / 168

= 3.57  x 10³ times

Total time to be taken = 2 x 3.57 x 10³

= 7.14 x 10³ s

=119 minutes .

4 0
3 years ago
Why does laser beam might appear blue and another laser beam might appear red?
Alenkasestr [34]
The red laser will have a hotter temperature than the blue, so it is red because it is hot
<span>hope this helps!!!</span>

4 0
3 years ago
Read 2 more answers
At the bottom of the ocean, a rock has a mass 25 g. At sea level, the same rock will have a mass of: less than 25 g, more than 2
storchak [24]
It will be same 25 g
5 0
3 years ago
Read 2 more answers
Other questions:
  • Energy that does not involve the large-scale motion or position of objects in a system is called:
    7·1 answer
  • While flying over the grand canyon the pilot
    9·1 answer
  • If a girl is standing in front of a smooth surface from which a sound is reflected, the girl may hear
    11·2 answers
  • Which is not a factor that affects the pressure of a gas in a closed container?
    12·1 answer
  • Help me rearrange this formula. <br><br>I've been trying but I can't remember how to do it.​
    13·1 answer
  • Which statement is true for objects in dynamic equilibrium?
    14·2 answers
  • Water boils at 212°F. Which temperature is an equivalent temperature?
    15·2 answers
  • A car makes a trip due north for three-fourths of the time and due south one-fourth of the time. The average northward velocity
    13·1 answer
  • What are the basic rules of basketball? Are the rules different for men’s versus women’s competition?
    12·2 answers
  • A spring (oriented horizontally, k = 40 N/m) is attached to the left side wall in a room whose floor is frictionless. A small, d
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!