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
labwork [276]
3 years ago
13

a stone is dropped from a bridge and hits the pavement below in 2 seconds. what is the velocity of the stone when it hits the pa

vement
Physics
2 answers:
ira [324]3 years ago
8 0
Well gravity is 9.8m/s so i would assume 19.6m/2 is the velocity
Minchanka [31]3 years ago
3 0
Velocity of the stone just before it hits the pavement can be found by using kinematic equation v = u + at.
u = initial velocity = 0 m/s. a = 9.8 m/s^2 . t = 2 sec.
Plug given values to find v. 
You might be interested in
What magnitude charge creates a 1.0 n/c electric field at a point 1.0 m away?
Stolb23 [73]

Answer:

1.1\cdot 10^{-10}C

Explanation:

The electric field produced by a single point charge is given by:

E=k\frac{q}{r^2}

where

k is the Coulomb's constant

q is the charge

r is the distance from the charge

In this problem, we have

E = 1.0 N/C (magnitude of the electric field)

r = 1.0 m (distance from the charge)

Solving the equation for q, we find the charge:

q=\frac{Er^2}{k}=\frac{(1.0 N/c)(1.0 m)^2}{9\cdot 10^9 Nm^2c^{-2}}=1.1\cdot 10^{-10}C

8 0
3 years ago
Derive the unit of intensity???
zheka24 [161]

My answer is "Watt per square meter".

5 0
3 years ago
Read 2 more answers
What does hydraulic mean?
Harrizon [31]

Answer:

denoting, relating to, or operated by a liquid moving in a confined space under pressure.

4 0
3 years ago
An object moves from point A to point C along the rectangle shown in the figure below.
Naily [24]

Answer:

Hello friend where is the figure of the question

4 0
3 years ago
A rocket weighs 9800N (opposing force) what is it mass? What netforce moves the rocket? What applied force gives it a vertical a
Slav-nsk [51]

For the first part of this question, consider that "weight" can be described as mass x acceleration of gravity. Weight is expressed in Newtons. To solve for mass in this case, simply divide 9800N by 9.8m/s^2 (Earth's gravitational acceleration). This will give you a mass of 1000 kg. This mass is moved due to the net force supplied by the normal force from the rocket "pushing" off of Earth.

For the second part, we will use the equation F = ma, which is Newton's second law. For this, we know the m, or mass, is 1000 kg. Also, we know the a, or acceleration, will be 4 m/s^2. To solve for force, we will multiply both of these values. This gives a force of 4000 N. I hope this clears things up!

6 0
3 years ago
Other questions:
  • Problem 6.056 Air enters a compressor operating at steady state at 15 lbf/in.2, 80°F and exits at 275°F. Stray heat transfer and
    7·1 answer
  • What is the mass number of an atom with 5 protons and 7 neutrons?
    5·2 answers
  • A stunt man is being pulled, at a constant velocity, along a rough road by a cable attached to a truck. The cable is parallel to
    11·2 answers
  • Nitrogen has a melting point of -210.0°C and a boiling point of -195.8°C. A sample of nitrogen is heated from -215.0°C to -200.0
    6·1 answer
  • What kind of modulator is used in this scenario?
    9·2 answers
  • Plz help... asap I need it
    10·2 answers
  • A 20 kg mass is moving at 10 m/s and collides with a stationary 5 kg mass, transferring all its momentum in the collision, what
    7·1 answer
  • A ball with an initial velocity of 5 m/s rolls off a horizontal table with a height of 1.0
    15·1 answer
  • 2. Above right: The four positions of the thrown ball with no gravity are
    14·1 answer
  • The position of an object that is oscillating on a spring is given by the equation x = (17.4 cm) cos[(5.46 s-1)t]. what is the a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!