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
dusya [7]
3 years ago
14

Does hot water or cold water boil faster is that repeated observations using models are controlled experiments

Physics
1 answer:
lozanna [386]3 years ago
4 0
Hot water boils faster since its already hot and dosnt take much more time to get as hot
You might be interested in
Can anyone check if my answer is correct ?
ohaa [14]

I believe your answer is correct, because 8.7*10^-7 is equal to 0.00000085347.

Hope you do well!

4 0
3 years ago
Why do atoms do group 1 element lose electrons to form cations
Mrac [35]

Answer:

when a element of 1 group take part in reaction, its atom looses outer electron and form positively charged ions called Cation.

Explanation:

8 0
3 years ago
A player kicks a soccer ball in a high arc toward the opponent's goal. At the highest point in its trajectory
____ [38]

At the highest point in its trajectory, the ball's acceleration is zero but its velocity is not zero.

<h3>What's the velocity of the ball at the highest point of the trajectory?</h3>
  • At the highest point, the ball doesn't go more high. So its vertical velocity is zero.
  • However, the ball moves horizontal, so its horizontal component of velocity is non - zero i.e. u×cosθ.
  • u= initial velocity, θ= angle of projection

<h3>What's the acceleration of the ball at the highest point of projectile?</h3>
  • During the whole projectile motion, the earth exerts the gravitational force with a acceleration of gravity along vertical direction.
  • But as there's no acceleration along vertical direction, so the acceleration along vertical direction is zero.

Thus, we can conclude that the acceleration is zero and velocity is non-zero at the highest point projectile motion.

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: Player kicks a soccer ball in a high arc toward the opponent's goal. At the highest point in its trajectory

A- neither the ball's velocity nor its acceleration are zero.

B- the ball's acceleration points upward.

C- the ball's acceleration is zero but its velocity is not zero.

D- the ball's velocity points downward.

Learn more about the projectile motion here:

brainly.com/question/24216590

#SPJ1

7 0
2 years ago
Describe the motion of the car as it moved across the floor
jok3333 [9.3K]
It moves horizontally across the floor.
6 0
3 years ago
How high is an object lifted if the total work done on it is 125 J and the force required to lift the object is 25 N? Use the eq
mixas84 [53]
The answer would be C. 5m
This is because to find d, you would need to divide W (125 J) by F (25 N).
Hope this helps!
8 0
3 years ago
Other questions:
  • What element would a metal, like sodium, most likely combine with?
    13·2 answers
  • Thomas records the masses of several rocks as 7.40 g, 7.85 g, 7.60 g, and 7.40 g. What is the mode of Thomas’s data set?
    14·1 answer
  • Th answer is "electric attraction is a force that can act at a distance."
    9·1 answer
  • If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
    10·2 answers
  • Oxygen is inhaled and is then distibuted throughout the bloodstream is what two body systems?​
    14·1 answer
  • What does basketballs have inside of it
    12·1 answer
  • If a 3.1 kg ring of granite decreases in temperature 17.9C. What is the
    14·1 answer
  • find the coefficient of kinetic friction for a 10 kg box being dragged steadily across the surface with a force of 2.0 Newtons​
    5·1 answer
  • Water is kept in a vessel at a temperature of 100°C. What would happen if a metal ball having a temperature of 30°C is dropped i
    7·1 answer
  • Jan Baptista van Helmont's famous experiment incorrectly showed that the plants produce most of their mass from:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!