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
satela [25.4K]
2 years ago
15

I need a short answer ?

Physics
1 answer:
mars1129 [50]2 years ago
7 0

Answer:

Explanation:

7a) t = d/v = 100/45cos14.5 = 2.29533...= 2.30 s

7b) h = ½(9.81)(2.29533/2)² = 6.46056... = 6.45 m

  or

  h = (45sin14.5)² / (2(9.81)) = 6.47 m

which rounds to the same 6.5 m when limiting to the two significant digits of the initial velocity.

You might be interested in
Impact of electricity in the society
Travka [436]

Answer:

<h2>Electricity has many uses in our day to day life. It is used for lighting rooms, working fans and domestic appliances like using electric stoves, A/C and more. All these provide comfort to people. In factories, large machines are worked with the help of electricity.</h2>

5 0
2 years ago
In the equation vx^2=v0x^2+2ax(x-x0) what does the terms vx, v0x, x, and x0 stand for respectively?
tatuchka [14]

B. velocity at position x, velocity at position x=0, position x, and the original position

In the equation

v_{x}^{2} = v_{ox}^{2} +2 a x (x - x₀)

v_{x} = velocity at position "x"

v_{ox} = velocity at position "x = 0 "

x = final position

x_{o} = initial position of the object at the start of the motion

6 0
3 years ago
Read 2 more answers
TRUE OR FALSE? earth revolves around the sun tilted on its axis
Alex777 [14]

The axis of the Earth's rotation is tilted relative to the plain of the Earth's revolution around the Sun.

The question is worded very poorly, but you'd have to say it's TRUE.  

6 0
3 years ago
Read 2 more answers
How can you make a solution saturated
Step2247 [10]

Answer: The answer is B. Add more solute (took test)

Explanation:

5 0
3 years ago
To test the hypothesis that the population mean mu=3. 6, a sample size n=14 yields a sample mean 4. 007 and sample standard devi
PolarNik [594]

The P value for the given data set is 25127. For finding P value, we have to must find the Z value.

<h3>How to get the z scores?</h3>

If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.

The Z value is calculated as;

Z = \dfrac{X - \mu}{\sigma})

Z = (X - μ) / σ

Z = (4.007 - 3.6) / 0.607

Z = 0.67051

The P value for the given data set is 25127.

Learn more about z-score here:

brainly.com/question/21262765

#SPJ1

5 0
2 years ago
Other questions:
  • you are running with your friend on a hot day. your body begins to warm up. describe how your skin responds to the excess heat.
    10·2 answers
  • Find the period of the leg of a man who is 1.83 m in height with a mass of 67 kg. The moment of inertia of a cylinder rotating a
    8·1 answer
  • Need help ???? Only answer if you think you know it
    13·1 answer
  • ________ is the average kinetic energy of each atom.<br><br> radiation<br> temperature<br> potential
    10·1 answer
  • the ratio of kinetic energy to the potential energy of a certain object of mass m at a height of 40 m above ground level is 2:1.
    13·1 answer
  • Technician A says that the aspect ratio of a tire represents the relationship between the tire's cross-sectional height to its c
    5·1 answer
  • What is the resistance (R) when voltage is 179V and current is 5 Amps?
    11·1 answer
  • Minute after minute, hour after hour, day after day, ocean waves continue to splash onto the shore. Explain why the beach is not
    5·1 answer
  • Why should I care about children in Haiti that are being targeted by Haitian gangs?
    10·1 answer
  • A boy weighing 445 N swings on a 2-m long swing. If his horizontal speed at the lowest point is 3 m/s, what total force must the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!