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
cricket20 [7]
4 years ago
15

When is acceleration positive, negative, and zero? Calculate the average speed if I walk to class at a speed of 20 meters/minute

for the first 2 minutes and run when they start to play 21 savage at a rate of 50 meters/minute for the last 3 minutes.
Physics
1 answer:
Marrrta [24]4 years ago
6 0
Part A: a->positive when velocity is increasing a->negative when velocity is decreasing a->zero when velocity is constant
You might be interested in
A 12-V car battery supported a current of 150 mA to bulb calculate the power absorbed by the bulb over an interval of 20 mintues
ASHA 777 [7]

Answer:

  • +1.8W
  • 2,160J

Explanation:

First, we need to solve for the power absorbed by the bulb.

Formula [ p = vi ]

p = 12 * 150 * 10^-3

p = +1.8W

Second, we can solve for the power aborbed in a interval of 20 minutes.

Formula [ e = vit ]

e = 12 * 150 * 10^-3 * 20 * 60

e = 2,160J

Just a note that "20 * 60" represents the time given in seconds.

Best of Luck!

7 0
2 years ago
Mass is a fundamental quantity ​
Oliga [24]

Explanation:

okk hope you like then comment

5 0
3 years ago
Two 8V batteries are set up with four light bulbs in a complex circuit. Light bulb A has a resistance of 4.00 Ω, light bulb B ha
Neko [114]

Answer:

Total resistance : 12.4

Total Current : 0.645

Explanation:

4 0
3 years ago
What is the effect of the mass of an object on it’s friction threshold?
Alina [70]
An object of large mass is pulled down onto a surface with a greater force than an object of low mass and, as a consequence, there is greater friction between the surface of the heavy object than between the surface and the light object.
6 0
3 years ago
Whenever energy changes form, people sometimes say that some energy is "lost." What is meant by this?
BartSMP [9]

Answer:

A. The energy is not truly lost: it transforms into forms that are not easily put to use.

Explanation:

This is due to the fact that when we use energy, it seems to have disappear, but it really hasn't. In fact, when we use energy, it is changing into another form that has to be converted in order for energy to be present once again.

7 0
3 years ago
Other questions:
  • If Jason is playing football and Jason runs with the football west at a speed of 40.0 m/s and then turns and goes north at 5.0 m
    9·1 answer
  • A disturbance that moves through a solid, liquid, gas, or a vacuum is defined as __________.
    5·2 answers
  • A charge Q = 1.96 10-8 C is surrounded by an equipotential surface with a surface area of 1.18 m2. what is the electric potentia
    8·1 answer
  • Okay questions 6 of 20
    5·1 answer
  • Two energy resources that do not depend on the sun's energy
    9·2 answers
  • Answer and I will give you brainiliest ​
    6·2 answers
  • The cation that is reabsorbed from the urine in response to aldosterone
    8·1 answer
  • Chose the one with more potential energy: a 25kg bear or a 30kg bear in a tree?
    8·1 answer
  • IS ANYONE THERE..??!​
    10·1 answer
  • A 26 kg bin is stationary on the driveway. The coefficient of static friction is 0.25. You pull on the bin with a force of 52 N
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!