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
Vesnalui [34]
3 years ago
14

You throw a rock upward. The rock is moving upward, but it is slowing down. If we define the ground as the origin, the position

of the rock is _____ and the velocity of the rock is _____.
A. positive, positive
B. positive, negative
C. negative, positive
D. negative, negative
Physics
1 answer:
lyudmila [28]3 years ago
6 0

Answer:

A. Positive, positive

Explanation:

As we defined the ground is the origin, as long as the rock is above the ground, its position would always be positive.

As for velocity, as long as the rock is moving upwards, its direction is also upward, so its velocity is always positive. The velocity will become negative when the rock falls down.

You might be interested in
. Why are scientific models important? They help scientists prove scientific theories. They help scientists explain complex ques
sdas [7]
The best answer would be the 4th choice. "They help scientists explain concepts that are difficult to observe, this also covers the first answer which helps the scientist to answer complex questions. A scientific model is not used prove scientific laws as they may not always have all the data to prove so, instead it is used to allow them to explain better concepts revolving around science through research and may also allow them to predict results based on the accumulation of data and analyzing the trend of this resulting information.
3 0
3 years ago
What are the equivalent celsius and kelvin temperatures of -128 f?
Gre4nikov [31]

Answer:

128 Kelvin = 128 - 273.15 = -145.15 Celsius. Temperature conversion chart Sample temperature conversions 103.55 Kelvin to degrees Fahrenheit 39.82 degrees Fahrenheit to Kelvin

Explanation:

hope this helps have a good day

6 0
2 years ago
A student lifts 100 N of books 1 m to his shoulder. He walks forward
Delvig [45]

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>:</em><em>)</em>

<em>✌</em><em>✌</em><em>✌</em><em>✌</em><em>✌</em><em>✌</em>

7 0
3 years ago
If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, its t
Lina20 [59]
E_{total} = KE + PE \\ KE = 500 J \\ PE = 1500 J \\ E_{total} = 500J + 1500J \\ E_{total} = 2000J
4 0
3 years ago
Read 2 more answers
What do the four terrestrial planets and the four gas giant planets have in common?
vodomira [7]
They all have the same aphelion distances
4 0
3 years ago
Other questions:
  • During an autopsy and subsequent toxicology reports, it is discovered that a man died from arsenic poisoning. When investigating
    10·1 answer
  • A slab of insulating material has thickness 2d and is oriented so that its faces are parallel to the yz-plane and given by the p
    13·1 answer
  • For a short time the missile moves along the parabolic path y=(18−2x2) km. If motion along the ground is measured as x=(4t−3) km
    6·1 answer
  • The Kinetic energy, K, of an object with mass m moving with velocity v can be found using the formula - E_{\text{k}}={\tfrac {1}
    5·1 answer
  • List an example of each of the four classes polymers that living things make and use
    5·1 answer
  • A heat engine does 300 J of work during one cycle. In this cycle 900 J of energy is wasted.
    7·2 answers
  • ASAP pls answer right if can’t see picture don’t answer
    8·1 answer
  • 2
    15·2 answers
  • Which of the following diagrams involves a virtual image?
    11·1 answer
  • Draw the graph of the cooling curve of Naphtalene; hence discuss the cooling curve of Nephtalene​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!