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
Ket [755]
3 years ago
13

Plz I need help with number 1 !!!

Physics
1 answer:
Darya [45]3 years ago
5 0
Speed-up
slow-down
change direction
You might be interested in
What is scientific inquiry? Who can use it and what does it involve?
muminat
A scientific inquiry is a form of studies that scientist use to help form an answer. A scientific inquiry involves asking questions, making hypotheses, making observations, analyzing, and testing the object.  
8 0
3 years ago
A 50-cm3 block of wood is floating on water, and a 50-cm3 chunk of iron is totally submerged in the water. Which one has the gre
ludmilkaskok [199]

Answer:

Iron

Explanation:

The buoyant force equals to the weight of water being displaced by the object.

Since, the volume of both iron and wood is equal and the wood is not completely submerged, but the iron block is completely submerged i.e more volume of the water is being displaced by the iron block.

Hence, the buoyant force is more on the iron.

4 0
4 years ago
Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid
xxMikexx [17]

Answer:

Solubility

Explanation:

Material becomes soluble in solvent and disappears.

5 0
3 years ago
Read 2 more answers
The modern periodic law, according to Moseley, classifies elements based on arranging elements in ___ order
Daniel [21]
D because it makes sense
4 0
3 years ago
Read 2 more answers
In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceler
AnnZ [28]

Answer:

3091.56

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s² (positive downward and negative upward)

s=ut+\frac{1}{2}at^2\\\Rightarrow s=0\times 25+\frac{1}{2}\times 3.5\times 25^2\\\Rightarrow s=1093.75\ m

Distance traveled in the first stage is 1093.75 m

v=u+at\\\Rightarrow v=0+3.5\times 25\\\Rightarrow v=87.5\ m/s

Velocity at the end of first stage is 87.5 m/s

v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{132.5-87.5}{10}\\\Rightarrow a=4.5\ m/s^2

Acceleration of the second stage is 4.5 m/s²

s=ut+\frac{1}{2}at^2\\\Rightarrow s=87.5\times 10+\frac{1}{2}\times 4.5\times 10^2\\\Rightarrow s=1100\ m

Distance traveled in the second stage is 1100 m

v^2-u^2=2as\\\Rightarrow s=\frac{v^2-u^2}{2a}\\\Rightarrow s=\frac{0^2-132.5^2}{2\times -9.81}\\\Rightarrow s=894.81\ m

Distance traveled after the second stage has stopped firing is 894.81 m

Total height the rocket reached = 1093.75+1100+897.81 = 3091.56 m

3 0
3 years ago
Other questions:
  • Three particles are placed in the xy plane. A 50-g particle is located at (3, 4) m, and a 40-g particle is positioned at ( 2, 6)
    8·1 answer
  • Superman is jogging alongside the railroad tracks on the outskirts of Metropolis at 100 km/h. He overtakes the caboose of a 500-
    15·1 answer
  • . What landform do you think this map depicts? a. Valley b. Mountain C. Plain​
    9·1 answer
  • Describe how an iron tyre is fitted onto the wheel of a train. ​
    12·2 answers
  • Streams compensate for changes in their systems by adjusting other factors in order to return to _______
    9·1 answer
  • In 1815 William Smith correlated strata from many locations and plotted it on paper to show the spatial distribution of rock uni
    7·1 answer
  • Two solid metal spheres one with 0.1m radius and the other with 0.01m radius are charged to 1.0 x 10-6 C. They are placed in two
    14·1 answer
  • How far can a bullet at 450 m/s travel for 4.7 s?
    6·1 answer
  • Pls need an answer asap
    12·1 answer
  • Which of the following statements about charging objects is FALSE. Select one: If an object gains electrons it becomes positivel
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!