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
sergeinik [125]
3 years ago
10

True or false? Scientific theories lack experimental support

Physics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

Hey there!

It is false. Theories can be repeatedly tested to give people an explanation of the world.

Let  me know if this helps :)

You might be interested in
According to Archimedes' Principle, what condition has to be met for an object to float?you will get branliest
MissTica

Explanation:

The buoyant force must be greater to float, otherwise it would sink, its like a barrel in water, the more water weight in it the more it sinks, the more air weight the more it rises.

3 0
2 years ago
A. List at least 5 examples of events or factors that could cause extinction. 
baherus [9]
Disease
Lack of natural reourses
war
asteroid
Polution.

8 0
3 years ago
Read 2 more answers
If you use a force of 90 N to pick up a 10 pound bag of charcoal, what is the acceleration?
hjlf

Answer:

9ms^2

Explanation:

since ,Force=mass*acceleration

then, acceleration=force/mass

and, Force=90N

Mass=10pound

therefore, acceleration=90/10

=9ms^2

8 0
3 years ago
A firecracker in a coconut blows the coconut into three pieces. two pieces of equal mass fly off south and west, perpendicular t
netineya [11]
Here we have mass that moves at ceratin speed. This means that we have momentum. The law that must be observed is law of conservation of momentum. It states that momentum before certain event is equal to a momentum after that event. Here we have three masses so we can write this as:
m_{1}  v_{1i} + m_{2}  v_{2i} + m_{3}  v_{3i} = m_{1}  v_{1f} + m_{2}  v_{2f} + m_{3}  v_{3f}
Before the firecracker blows a coconut does not move, so left side is equal to 0:
0 = m_{1} v_{1f} + m_{2} v_{2f} + m_{3} v_{3f}

We know that m1=m2=m and m3=2m. Also we are asked to find v3f so we can rewrite formula:
v_{3f} = -  \frac{m_{1}  v_{1f}  + m_{2} v_{2f} }{ m_{3} }

We must take in consideration that two parts with same mass do not move in same direction. The center of mass of these two parts moves between them at angle of 45° with respect to both south and west. The speed of a center of mass is:
v_{f} = \sqrt{ v_{1f}^{2}+ v_{2f}^{2} } \\ \\ v_{f} = 33.9m/s
This speed we can insert into formula for v3f:
v_{3f} = - \frac{m*33.9+m*33.9 }{ 2m } \\  \\ v_{3f} = - \frac{2m*33.9 }{ 2m }  \\  \\ v_{3f} = - 33.9m/s

We can see that part of a coconut with biggest mass has same speed as center of mass of two other parts. Negative sign shows that direction is opposite to direction of two pats. Biggest part moves towards north-east.
8 0
3 years ago
Read 2 more answers
What is refraction? <br><br>this my in sta id-:akhilrawat9453​
My name is Ann [436]

Explanation:

ij jdjcjxjjdjnndnxnsmxnjxjebxnc

6 0
3 years ago
Read 2 more answers
Other questions:
  • You have a lens whose focal length is 6.91 cm. You place an object on the axis of the lens at a distance of 11.1 cm from it. How
    10·1 answer
  • What keeps an ionic bond held together?
    5·1 answer
  • I need help with the following three physics problems please!
    14·1 answer
  • Positively charged ions are surrounded by freely moving electrons in
    8·1 answer
  • Displacement is the change in velocity of an object.<br><br> True or false
    14·2 answers
  • As fast as possible pls answer my doubt I think it is d
    7·1 answer
  • Two asteroids are 100,000 m apart. One has a mass of 3.5 x 106 kg. If the
    14·2 answers
  • Which of these is not an example of work? A. Lifting a bag B. Holding a heavy weight C. Pushing a door open D. Kicking a ball
    6·1 answer
  • 3.A carnival ride has a radius of 5.00 m and exerts an applied force of 987 N on an 80 kg rider.
    7·1 answer
  • Which of these forms due to the force of compression?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!