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
saveliy_v [14]
2 years ago
7

Which characteristic should a good scientific question have?

Physics
2 answers:
Brilliant_brown [7]2 years ago
7 0
The best answer to this question is D. a god scientific question should be based on observations instead of just imagination.

Hope this helps.
cricket20 [7]2 years ago
6 0

It should lead to a hypothesis that is testable.

You might be interested in
a person hears an echo from the top of a tower , 2.2 second after the sound is produced.how far away is the tower from the perso
bekas [8.4K]

Answer:

730.4 m

Explanation:

The sound waves travels with a uniform motion (=constant velocity), therefore we can calculate the distance it travels using the formula:

d=vt

where

d is the distance

v is the speed of the sound wave

t is the time taken

In this problem we have:

v = 332 m/s is the speed of sound in air

t = 2.2 s is the time elapsed

Therefore, the distance between the tower and the person is

d=(332)(2.2)=730.4 m

5 0
3 years ago
BERE
Kisachek [45]

Answer:

All points to the left of zero are negative

Explanation:

6 0
2 years ago
Read 2 more answers
Which describes Einstein’s idea of space and time?
Sholpan [36]
Time and space are both relative
8 0
3 years ago
Read 2 more answers
In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole.
Fiesta28 [93]

Answer:

6.0 m/s

Explanation:

According to the law of conservation of energy, the total mechanical energy (potential, PE, + kinetic, KE) of the athlete must be conserved.

Therefore, we can write:

KE_i+PE_i =KE_f+PE_f

or

\frac{1}{2}mu^2+0=\frac{1}{2}mv^2+mgh

where:

m is the mass of the athlete

u is the initial speed of the athlete (at the bottom)

0 is the initial potential energy of the athlete (at the bottom)

v = 0.80 m/s is the final speed of the athlete (at the top)

g=9.8 m/s^2 is the acceleration due to gravity

h = 1.80 m is the final height of the athlete (at the top)

Solving the equation for u, we find the initial speed at which the athlete must jump:

u=\sqrt{v^2+2gh}=\sqrt{0.80^2+2(9.8)(1.80)}=6.0 m/s

4 0
3 years ago
Convert (a) 50 oF, (b) 80 oF, (c) 95 oF to Celsius
storchak [24]
I really need these points thx a lot
5 0
2 years ago
Other questions:
  • what issues might arise in determining the latent heat of something that sublimes in comparison to something that melts
    7·2 answers
  • A ball rolling across the floor at a velocity of 6.15 m/s [E] slows to rest in 1.00 minute. The
    6·1 answer
  • What is circular motion​
    8·2 answers
  • You can see a clock in a spaceship moving past you at 90 percent of the speed of light. according to you, how much time would pa
    7·1 answer
  • Imagine you are holding a small ball below you so that you look down on its "north pole." turn the ball in a counterclockwise di
    15·1 answer
  • What holds the atoms together in a covalent bond
    10·2 answers
  • A spring-loaded toy gun is used to launch a 12.0-g plastic ball. The spring which has a spring constant of 15.0 N/m is compresse
    6·1 answer
  • Yo yo was good I know its Friday and schools over but I need this, due today. I give BRAINLIEST. I need this in atleast 20 minut
    12·2 answers
  • a 4,000 kilogram rocket has accelerates at a rate of 35 m/s2. How much force is required to do this?​
    11·1 answer
  • what happens to the frequency the centripetal force on an object in circular motion is doubled while the object keeps the same r
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!