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
zheka24 [161]
4 years ago
11

A projectile is shot from the edge of a cliff 80 m above ground level with an initial speed of 60 m/sec at an angle of 30° with

the horizontal. Determine the time taken by the projectile to hit the ground below.
Physics
1 answer:
Dvinal [7]4 years ago
6 0

Answer:

8 seconds

Explanation:

Answer:

Explanation:

Going up

Time taken to reach maximum height= usin∅/g

=3 secs

Maximum height= H+[(usin∅)²/2g]

=80+[(60sin30)²/20]

=125 meters

Coming Down

Maximum height= ½gt²

125= ½(10)(t²)

t=5 secs

You might be interested in
Monitoring cash flow and keeping track of the bottom line of a business are responsibilities for whom?
lina2011 [118]
Answer:
A financial manager.

Explanation:
This is because a financial manager oversees the financial operations of a company. Generally, a financial manager assumes accounting responsibilities for the company. A financial manager is responsible for planning and managing the company's financial resources.


Side note:
Hope this helps!
Please give Brainliest!
6 0
3 years ago
This problem will require you to make some assumptions, so be sure that your assumptions are clear. You have dinner reservations
sertanlavr [38]

Answer:

No

Explanation:

The statement is implying that if you do a certain amount of work, you're entitled to do a certain amount of work. Sometimes, work doesn't entitle you a reward.  

6 0
3 years ago
What speed would a fly with a mass of 0.72 g need in order to have the same kinetic energy as a 1250 kg automobile traveling at
Elena L [17]
Kinetic of automobile

Mass m = 1,250 Kg;         V = 11 m/s

Formula: K.E = 1/2 mV²

               K.E = 1/2(1,250 Kg)(11 m/s)²

               K.E = 75,625 J

Speed required for insect to have the same kinetic energy as automobile

Mass of insect = 0.72 g convert to Kg   m = 7.2 x 10⁻⁴ Kg

K.E = 1/2 mV²  Derive V =?

 V = 2 K.E/m

 V = √2(75,625 J)/7.2 x 10⁻4 Kg

 V = √2.1 x 10⁸ m²/s²

 V = 14,491.34 m/s  (velocity of insect)









5 0
3 years ago
If the path of current flow is laid out on a map, what is the map called
Keith_Richards [23]
B i hope that helps :) 


8 0
3 years ago
Read 2 more answers
Maya uses a tuning fork of frequency 250 Hz to produce transverse wave on a stretched string. Her friend justin measure the dist
Viktor [21]

Answer:6.25m/s

Explanation:

V=F*lander

V=FL/2=250*0.05/2

7 0
3 years ago
Other questions:
  • Is the following nuclear equation balanced? <br><br> The pic is down below
    15·2 answers
  • A child is sliding down a slide at the playgound. is mechanicalenergy conserved
    12·1 answer
  • How can health literacy help people become more productive?
    11·2 answers
  • How many elements occur naturally?<br> A. 2<br> B. 9<br> C. 29<br> D. 92
    9·2 answers
  • I don't understand it asking me what the earth look like when the moon is a new moon​
    6·2 answers
  • (a) According to Hooke's Law, the force required to hold any spring stretched x meters beyond its natural length is f(x)=kx. Sup
    12·1 answer
  • Describe the hydrogen fusion?​
    8·1 answer
  • I will give Brainliest please help!​
    8·1 answer
  • Convert one mean solar day into second​
    12·1 answer
  • How to use heliocentric in your own sentence?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!