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
SCORPION-xisa [38]
3 years ago
10

A substance burns in the presence of oxygen.

Physics
2 answers:
valina [46]3 years ago
5 0
If I don’t know a answer I put C bc it is a 50/50 chance but it might be wrong
makkiz [27]3 years ago
5 0

Answer:

D. flammability

Explanation:

I took the test and got it right

You might be interested in
3) A dock worker pushes a 72 kg crate up a 2.0 m high,
Vlad [161]

Work done on the crate is 1411.2 J

Explanation:

Work done is defined as the product of force and the distance moved by the object. The unit of work done is in joules and denoted by the symbol J.

                                     Work done = F * d

where F represents the force and d represents the distance moved by the object.

mass = 72 kg , distance moved by the object is given by 2.0 m

Force F = mass * gravity = 72 * 9.8

             = 705.6 N =706 N.

Work done = 706 * 2.0 = 1412 J.

                   

7 0
3 years ago
D) cube
kondor19780726 [428]

Answer:

c because it makes since

Explanation:

I took the test

8 0
3 years ago
Read 2 more answers
Ahmad was moving to the south with v= 10 km/hr ,and Mohammed was moving with half of Ahmad's speed to the North .Write the vecto
Alexxx [7]

Answer:

5 km/hr to the South

Explanation:

VM = VA/2

VM = 10km/2hr =5km/hr

8 0
3 years ago
During what time interval was the object traveling most quickly?
anygoal [31]

ANSWER

0s to 3s

EXPLANATION

To find the time interval where the object was traveling more quickly, we have to find the velocity of the object during each interval.

From a position-time graph, we can obtain the velocity of the object from the slope of the graph in each interval. To find those slopes, we just have to divide the vertical difference by the time interval.

The interval from 0s to 3s:

v=\frac{7-3}{0-3}=-\frac{4}{3}m/s

The interval from 3s to 5s and the interval from 7s to 8s have a horizontal line, so the slope is zero and therefore the velocity is zero - meaning that the object was not moving during these periods.

The interval from 5s to 7s,

v=\frac{5-3}{7-5}=\frac{2}{2}=1m/s

And the interval from 8s to 12s,

v=\frac{0-5}{12-8}=-\frac{5}{4}m/s

Two of these three velocities are negative. Negative velocity indicates that the object is moving backward.

From these velocities, the greatest one, in absolute value, is the one between 0s to 3s. During this interval, the object is moving backward but at the greatest velocity.

3 0
1 year ago
An energy pyramid illustrates that energy in the form of _____ is lost to the surroundings as it's passed from one organism to t
Dima020 [189]
The answer is metabolic heat.

<span>Organisms from the higher trophic levels consume organisms from the lower trophic level and during that process, energy is lost as metabolic heat. Primary producers (plants) contain the greatest amount of energy originally from the sunlight. The next trophic level belongs to primary consumers that consume primary producers. During consumption, energy is lost. Similarly, secondary consumers eat primary consumers and energy is lost again. The highest trophic level is tertiary consumers that contains the least amount of energy.</span>
5 0
3 years ago
Other questions:
  • An 880n box is pushed across a level floor for a distance of 5.0m with a force of 440n. how much work was done on the box
    9·2 answers
  • Discuss how we are able to feel the sun's heat and see its brightness?
    5·2 answers
  • Which of the following is a vector quantity?
    14·2 answers
  • A hawk leaves its nest in Fort Worth and travels 3,000 meters east. After snacking on a tasty rodent the hawk flies another 1,50
    8·1 answer
  • A simple pendulum of length 2.5 m makes 5.0 complete swings in 16 s. What is the acceleration of gravity at the location?
    12·1 answer
  • What is an accurate definition of a heat engine? A. a system that converts mechanical energy into thermal energy B. a system tha
    10·2 answers
  • What happens when calcium reacts with chlorine?
    15·1 answer
  • Problem 1: A positively charged particle Q1 = +35 nC is held fixed at the origin. A second charge Q2 of mass m = 8.5 micrograms
    13·1 answer
  • When you are high up in the air you<br> have<br> greater potential energy<br> less potential energy
    13·1 answer
  • A soccer player runs 75m in a straight line down a soccer field in 11 seconds. What
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!