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
iren2701 [21]
3 years ago
11

Someone help please by providing work and answers please :)

Physics
1 answer:
Nastasia [14]3 years ago
5 0
First we gotta use an equation of motion:

d = ut + \frac{1}{2} a {t}^{2}

Our vertical distance d= 100 m, initial vertical speed u = 0 m/s (because velocity is fully horizontal), and vertical acceleration a = 9.8 m/s2 because of gravity. Let's plug it all in!

100 = 0 + \frac{1}{2} (9.8) {t}^{2}

Now we just need to solve for t:

{t}^{2} = \frac{2(100)}{9.8} \\ \\ t = \sqrt{\frac{2(100)}{9.8}}

Hit the calculators, and you'll get 4.5 seconds!
You might be interested in
A speeding car is pulling away from a police car. The police car is moving at 30 m/s. The radar gun in the police car emits an e
Gekata [30.6K]

Answer:

65.625 m/s

Explanation:

F=20\times 10^9 Hz

\Delta F=F_r-F_t=4750 Hz

c = Speed of light = 3×10⁸ m/s

Relative speed

v=\frac{\Delta F}{2F}\times c\\\Rightarrow v=\frac{4750}{2\times 20\times 10^9}\times 3\times 10^8\\\Rightarrow v=35.625\ m/s

Relative speed = 35.625 m/s

Velocity of speeder = Velocity of police car + Relative speed

⇒Velocity of speeder = 30 + 35.625 = 65.625 m/s

∴ Velocity of speeder is 65.625 m/s

6 0
3 years ago
Please select the word from the list that best fits the definition Visualizes where items are located
Amanda [17]

Answer:I’m pretty sure it’s spatial

Explanation:

3 0
3 years ago
Read 2 more answers
Calculate the tangential speed of a yo-yo twirled at the end of a 4 meter long string at 2 revolutions per second.
Oliga [24]

Answer: 50 m/s

Explanation: speed v = 2· pi·n·r = 2· 3.14· 2 s^-1· 4 m

8 0
3 years ago
write an essay describing and predicting the effects of fitness-related stress management techniques on the body.
Tatiana [17]
This is something u are going to have to do
7 0
3 years ago
What is measurement?​
Semmy [17]

Answer:

How long or wide something is

Explanation:

5 0
3 years ago
Other questions:
  • What phase are daughter cells in as a result of mitosis
    14·1 answer
  • ____ are streamlike movements of water in the ocean.(what is blank)
    15·1 answer
  • A laser beam of wavelength 439.4 nm is inci- dent on two slits 0.306 mm apart.
    6·1 answer
  • Se tiene una esfera de 100g, ¿Qué espacio ocupa?<br><br> La necesito, por favor!!!
    12·1 answer
  • Oxygen and hydrogen gas are at the same temperature T.What is the ratio of kinetic energies of oxygen molecule and hydrogen mole
    10·1 answer
  • 5. According to the law of reflection, the
    8·1 answer
  • What steps should be taken to increase the amount of current produce a generator​
    9·2 answers
  • Water vapor is an example of a(n)
    6·1 answer
  • Which is the following is a modern method used to pressure food
    6·1 answer
  • How can a single crash of a car into a wall involve three separate collections?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!