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
Vikki [24]
3 years ago
14

A dynamite blast blows a heavy rock straight up from the ground with a launch velocity of 160ft/sec. a) Write the height functio

n.
Physics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

y = 160t - 16t²

Explanation:

Using y = ut -1/2gt² where y = height of heavy rock above the ground, u = initial launch velocity of rock = 160 ft/s, g = acceleration due to gravity = 32 ft/s² and t = time.

So, substituting the values of the variables into y, we have

y = (160 ft/s)t -1/2 × 32 ft/s² × t²

y = (160 ft/s)t - (16 ft/s²)t²

y = 160t - 16t²

So, the height function is y = 160t - 16t²

You might be interested in
In scientific notation, (6.2 x 10^4) x (3.3 x 10^2 ) equals ____________________.
castortr0y [4]
You will get 20460000 as your answer which is broken down into, 2.046 x 10^7 as your number has to be between 1-10.
5 0
3 years ago
Read 2 more answers
Which of the following statements is falsifiable?
dimulka [17.4K]

We have that the <em>statements</em> found falsifiable is

Henry Ford invented the first automobile.

Option A

<h3>Henry Ford</h3><h3 />

Generally in as much Ford motor is a great vehicle company

He did not create the first automobile

Credit is give to Karl Benz for The first auto-mobile

Therefore

The statements found falsifiable is

Henry Ford invented the first automobile.

Option A

For more information on Benz visit

brainly.com/question/19424882

7 0
3 years ago
The normal is a line perpendicular to the reflecting surface at the point of incidence.
ladessa [460]

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

Therefore, the normal ray is the perpendicular line to the reflecting surface at the point of incidence.

4 0
3 years ago
800 joules of work were done with a force of 200 newtons. Over what
Svetach [21]

Answer:

4m

Explanation:

800/200

7 0
3 years ago
Friction marks are made by tools that indent a surface.<br> True or false
k0ka [10]
This statement is True.
6 0
3 years ago
Read 2 more answers
Other questions:
  • An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is W/m². What is the rms
    6·2 answers
  • Gravitational force between two objects depends on: a. The weight of the objects c. The mass of each object b. The distance betw
    5·2 answers
  • Which is a consequence of the third law of thermodynamics Energy is not always conserved. Engines cannot discharge waste heat. H
    13·2 answers
  • A skydiver jumps out of a helicopter and falls freely for 14.4 s before opening the parachute. What is the skydivers speed (in m
    8·1 answer
  • Which set of terms best defines what affects kinetic energy and potential energy, respectively? Choose one best answer
    6·1 answer
  • Sharece knows that wave peaks and valleys can add and subtract. What would be the net effect if she was able to cross Wave 1 (a
    14·1 answer
  • Una superficie de agua se golpea con una regla cada 0,2 segundos. Si la longitud de onda de la onda que se produce
    14·1 answer
  • .
    10·1 answer
  • A water trough is m long and a cross-section has the shape of an isosceles trapezoid that is cm wide at the bottom, cm wide at t
    15·1 answer
  • A street light is at the top of a 19 foot tall pole. A woman 5.25 feet tall walks towards the pole with a speed of 7ft/sec along
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!