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
goldfiish [28.3K]
3 years ago
13

An object is shot 8 m/s horizontally from a 7 m tall cliff. How far away does it land?

Physics
1 answer:
Angelina_Jolie [31]3 years ago
7 0

Answer:

R = 9.52 m

Explanation:

When an object is thrown horizontally from a certain height into the air under the effect of the gravitational force, the movement of the projectile is observed. Projectile motion has two component, Horizontal component and vertical component.

Initially, Projectile motion has only horizontal component and vertical component is equal to zero. Gradually vertical component of velocity increases due to the influence of gravity.

As the ball followed the projectile path, and we know that in projectile motion the horizontal component of the velocity remains constant throughout its motion. So there is no acceleration along horizontal path.

Given data :

Initial velocity = v_{i} = v_{i_{x}} = 8 m/s

Height = h = 7 m

Horizontal range = R = ?

According to 2nd equation of motion

h = v_{i_{y}}t + 0.5gt²

7 = 0.5*9.8*t²

t = 1.19 s

Using R = v_{i_{x}}t

R = 8*1.19

R = 9.52 m

You might be interested in
John wants a new video tape and a new shirt, but he only has $12.00. He buys the video tape and gets $0.52 change. What was his
mestny [16]

Answer:

You have the answer in your comments. I will be copying it so your question doesn't get deleted.

The answers is $0.58

$11.48

the video tape

the new shirt

7 0
2 years ago
Which process is responsible for changing the composition of rock?
Crazy boy [7]

Erosion, weathering, mechanical changes, chemical changes.

Really, any interaction can change the composition of a rock whether it be done by man or through nature.

4 0
3 years ago
Read 2 more answers
A ball rolls for 8 seconds and travels 24 meters. How fast was it traveling?
belka [17]

Answer:

The speed of the ball was, v = 3 m/s

Explanation:

Given data,

The time period of the ball, t = 8 s

The distance the ball rolled, d = 24 m

The velocity of an object is defined as the object's displacement to the time taken. The formula for the velocity is,

                              v = d / t      m/s

Substituting the given values in the above equation,

                               v = 24 / 8

                                  = 3 m/s

Hence, the speed of the ball was, v = 3 m/s

8 0
3 years ago
A test tube of length L and cross-sectional area A is submerged in water with the open end down so that the edge of the tube is
Margaret [11]

Answer:

if we measure the change in height of the gas within the had and obtain a straight line in relation to the depth we can conclude that the air complies with Boye's law.

Explanation:

The air in the tube can be considered an ideal gas,

           P V = nR T

In that case we have the tube in the air where the pressure is P1 = P_atm, then we introduce the tube to the water to a depth H

For pressure the open end of the tube is

         P₂ = P_atm + ρ g H

Let's write the gas equation for the colon

            P₁ V₁ = P₂ V₂

            P_atm V₁ = (P_atm + ρ g H) V₂

             V₂ = V₁    P_atm / (P_atm + ρ g h)

If the air obeys Boyle's law e; volume within the had must decrease due to the increase in pressure, if we measure the change in height of the gas within the had and obtain a straight line in relation to the depth we can conclude that the air complies with Boye's law.

The main assumption is that the temperature during the experiment does not change

6 0
3 years ago
How does competition affect population size? Use the terms carrying capacity and limiting factor with your example.
svetoff [14.1K]

Limiting factors are resources or other factors in the environment that can lower the population growth rate. Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off. This flat upper line on a growth curve is the carrying capacity.

6 0
3 years ago
Read 2 more answers
Other questions:
  • An electrical circuit is powered by a 1.5-volt battery and contains a light bulb producing 5 Ohms of resistance. There is also a
    14·1 answer
  • If the potential due to a point charge is 490 V at a distance of 10 m, what are the sign and magnitude of the charge?
    10·1 answer
  • 5. What is the elevation along the shoreline (sea level)?<br> O ft<br> 1 ft<br> 10 ft<br> 100 ft
    10·1 answer
  • Can anybody help?? If somebody can answer I'd love it!!
    14·1 answer
  • A naval station sees waves with 5.6 meters between crests, and these waves hit the station every 4.25 seconds.
    6·1 answer
  • When balancing a chemical equation, can a coefficient within a chemical equation be adjusted to
    5·2 answers
  • Pls help asappppppppp
    14·2 answers
  • During a field experiment about speed, a scientist created the chart above. The chart shows distance and time measurements for a
    15·1 answer
  • Please help me I’ll mark you as Brainly <br><br><br> PLSSSS
    12·2 answers
  • What are the importance of wedge? <br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!