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
kati45 [8]
3 years ago
7

Find :

Physics
1 answer:
Pepsi [2]3 years ago
8 0

Answer:

Explanation:

b) Gravity reduces the initial upward velocity to zero in a time of

t = v/g = 40/10 = 4 s

a) h =  v₀t + ½gt² = 40(4) +  ½(-10)4² = 80 m

or

v² = u² + 2as

h = (0² - 40²) / 2(-10) = 80 m

You might be interested in
Light travelling in one material enters another material in which it travels faster. The light wave will:
Free_Kalibri [48]
The light will change its direction and bend away from the normal.
8 0
4 years ago
What does the rotation of the Earth cause?
lord [1]
This rotation causes days. The relative position of us to the sun, and the Earth's rotation will cause the sun to appear to rise above the horizon and below, creating day and night.
7 0
3 years ago
Read 2 more answers
Sort the chemical equations based on the chemical reactions they represent.
Svetradugi [14.3K]

Decomposition reactions are said to be those reactions in which a reactants breakdown into two or more products. The general reaction for decomposition reactions is as follow,

                                         ABC    →    A  +  B  +  C

Specific Examples are as,

                                Water    →     Hydrogen + Oxygen

                                2 H₂O    →           2 H₂     +      O₂

               Calcium carbonate    →     Calcium oxide + Carbon dioxide

                            CaCO₃              →              CaO         +        CO₂

While, Synthetic reactions are said to be those reactions in which two or more reactants combine to form two or more products. The general reaction for synthetic reactions is as follow,

                                         A  +  B  +  C    →    ABC

Specific Examples are as,

                                  Iron + Oxygen     →     Iron Oxide

                                    2 Fe  +  3 O₂      →        2 Fe₂O₃

                          Sodium + Chlorine     →     Sodium chloride

                              2 Na  +       Cl₂        →            2 NaCl

                            Sulfur + Oxygen      →      Sulfur dioxide

                                  S    +    O₂            →             SO₂

                   Potassium + Chlorine      →      Potassium chloride

                            2 K     +     Cl₂            →              2 KCl

4 0
3 years ago
Read 2 more answers
Which one of the following statements does not accurately describe the diatonic scale as it corresponds to the setup on a piano
Gekata [30.6K]
<span>The answer is C. A scale would include a series of eight notes, where the first and seventh notes have the same letter.

Just took the test. Got 100%
</span>
8 0
3 years ago
Read 2 more answers
Standing still, Bruce, the quarterback, gets tackled by Biff, the 90.0-kg tackle, who is traveling at 7.0 m/s. Upon collision, B
Doss [256]

\\ \sf\longmapsto \Delta P=P

\\ \sf\longmapsto m1v1=m2v2

\\ \sf\longmapsto 90(7)=m2(10)

\\ \sf\longmapsto 10m2=630

\\ \sf\longmapsto m2=\dfrac{630}{10}

\\ \sf\longmapsto m2=63kg

Bruces mass is 63kg

5 0
3 years ago
Read 2 more answers
Other questions:
  • According to Kepler's law of harmonies, which of these planets takes the longest to orbit the Sun?
    15·2 answers
  • What factors that affect friction?
    14·1 answer
  • The mathematical relationship between current, voltage and resistance is known as
    9·2 answers
  • _mg(oh)2 + _HBr _mgBr2 + _HOH
    12·1 answer
  • A person holding a 30 kg box 1 m above the floor puts it down. How much work was done ? Remember , the force of an objects weigh
    6·2 answers
  • What is the momentum of a 3 kg cart moving at 10 m/s?
    9·1 answer
  • 5. This break-dancer's speed is not changing as he spins on his head, but he is
    7·1 answer
  • According to newton's second law, if you have an object that is put under acceleration due to a force, how could you reduce the
    7·1 answer
  • If an object moves 75 m/s in 15 seconds, how far did the object move?
    6·1 answer
  • Which statement can be supported by using a position-time grap
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!