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
adelina 88 [10]
2 years ago
7

Plz help me on science about cells

Physics
1 answer:
tatuchka [14]2 years ago
6 0
Cell theory states that all living things are made of cells. And cells can only come from other cells, this disproves spontaneous generation and therefore proves the view that organisms can grow from food or dirt is wrong.
You might be interested in
What would happen if the atmosphere consisted of pure oxygen.
mezya [45]

Answer:

Then our fires would become massive.

Explanation:

Hope this helps

5 0
1 year ago
Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?
mr_godi [17]
That would be a total of 150 minutes.
7 0
3 years ago
Read 2 more answers
A cable that weighs 4 lb/ft is used to lift 1000 lb of coal up a mine shaft 700 ft deep. Find the work done.
Shkiper50 [21]

Answer:

<h2>980000ft-lbs</h2>

Explanation:

Step one:

given data

mass of cable= 4lb/ft

mass of coal= 1000lb

dept of mine= 700ft

Step two:

Required

the work-done to lift the coal and the rope combined

Work-done to lift coal

Wc=1000*700= 700,000 lb-ft

Work-done to lift rope

Wr=\int\limits^{700} _0 {4(700-y)} \, dx \\\\Wr=4(700y-\frac{1}{2}y^2 )\limits^{700}_0

substitute y=700 we have, since y=0 will result to 0

Wr=4(700*700-\frac{1}{2}*700^2 )\\\\Wr=4(490000-245000)\\\\Wr=4(245000)\\\\Wr=980000ft-lbs

6 0
3 years ago
The total distance from a house to a school to is 9.5 km. A student travels all the way from his house to the school and back to
marysya [2.9K]

Answer:

0

Explanation:

Displacement is a vector from initial to final point. Because initial and final point are the same, so displacement is 0.

6 0
2 years ago
Jonas and his family are moving to another part of the city. As Jonas, his brother, and his Dad were driving one of the trucks f
vredina [299]

Answer:

i think the answer would be:Jonas’ brother gets out of the cab of the truck and sits in the back of the truck with the furniture. With less mass, they should be able to push the truck to the gas station.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • If a car accelerates at a constant rate of 3m/s^2, what is the velocity of the car after 4 seconds
    11·2 answers
  • A 0.50-kg object moves on a horizontal frictionless circular track with a radius of 2.5 m. An external force of 3.0 N, always ta
    14·1 answer
  • Explain how the gas laws apply to the act of breathing. Describe the changes that occur in each step of the process in terms of
    11·1 answer
  • Sitting in a second-story apartment, a physicist notices a ball moving straight upward just outside her window. The ball is visi
    7·1 answer
  • A similarity between radio waves and microwaves is that both are used for _____.
    9·2 answers
  • Lena is studying the properties of light in a laboratory. If she increases the amplitude of the light waves she is studying, wha
    11·1 answer
  • Hyperkinetic means too little movement true or false?
    15·1 answer
  • carmen and harry pack 12 cans of food into a box. five of the cans contain vegetables. seven of the cans contain soup. if harry
    7·1 answer
  • While _[blank]_ science deals with knowledge discovery, _[blank]_ science deals with knowledge use.
    14·1 answer
  • An unknown force is applied to a 12 kg mass. The force acts at an angle of 30.0 degrees above the horizontal. Determine the forc
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!