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
erica [24]
3 years ago
11

Georgia drops a brick from the top of an 80.0 m building. What is the velocity of the brick when it hits the ground?

Physics
1 answer:
geniusboy [140]3 years ago
4 0

Answer:

the velocity of the brick when it hits the ground is 39.60 m/s

Explanation:

Given;

height through which the ball is dropped, h = 80.0 m

the initial velocity of the brick, u = 0

The final velocity of the brick when it hits the ground is calculated as;

v² = u² + 2gh

v² = 0 + 2 x 9.8 x 80

v² = 1568

v = √1568

v = 39.60 m/s

Therefore, the velocity of the brick when it hits the ground is 39.60 m/s

You might be interested in
A diver who is 10.0 m underwater experiences a pressure of 202 kPa. If the diver's surface area is 1.50 m.sq, with how much tota
Deffense [45]

The pressure on the diver is given by:

p=\frac{F}{A}

where F is the force exerted by the water on the diver, while A is the area of the diver.

In this problem, we know the pressure: p=202 kPa=2.02 \cdot 10^5 Pa, and the area of the diver, A=1.50 m^2, therefore we can rearrange the initial equation to find the force on the diver:

F=pA=(2.02 \cdot 10^5 Pa)(1.50 m^2)=3.03 \cdot 10^5 N

6 0
3 years ago
Read 2 more answers
Gravity is affected by (2 points)
Tanya [424]

Answer:

Mass and distance

Explanation:

5 0
3 years ago
A merry-go-round spins freely when Diego moves quickly to the center along a radius of the merry-go-round. As he does this, it i
kaheart [24]

Answer:

The moment of inertia of the system decreases and the angular speed increases.

Explanation:

This very concept might not seem to be interesting at first, but in combination with the law of the conservation of angular momentum, it can be used to describe many fascinating physical phenomena and predict motion in a wide range of situations.

In other words, the moment of inertia for an object describes its resistance to angular acceleration, accounting for the distribution of mass around its axis of rotation.

Therefore, in the course of this action, it is said that the moment of inertia of the system decreases and the angular speed increases.

5 0
3 years ago
A box is pushed horizontally with constant speed across a rough horizontal surface.
Natasha_Volkova [10]

Answer:

what is the answers? so i can't answer.

Explanation:

6 0
3 years ago
When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?
vredina [299]

Answer:

gravitational energy

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • A student decides they need a cup of coffee. The energy lost as the coffee cools down is _____ the energy gained by the surround
    5·2 answers
  • Please help me please<br>​
    10·1 answer
  • Which of the following is not needed to make a model of the water cycle?
    8·1 answer
  • An underwater diver sees the sun 50° above horizontal. how high is the sun above the horizon to a fisherman in a boat above the
    11·1 answer
  • How many grams of water can be cooled from 42 ∘c to 20 ∘c by the evaporation of 51 g of water? (the heat of vaporization of wate
    5·1 answer
  • A student stays at her initial position for a bit of time, then walks slowly in a straight line for a while, then stops to rest
    13·1 answer
  • The gravitational force acting on a lead ball is much larger than that acting on a wooden ball of the same size. Which statement
    8·1 answer
  • A 2.0 kg arrow is fired at 10 m/s into a stationary 10kg block of ice what is the velocity of the arrow / ice combination after
    5·1 answer
  • Write three example for types of energy​
    6·2 answers
  • What is the mystery behind black hole​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!