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
bixtya [17]
4 years ago
11

A pile driver drops from a height of 35 meters

Physics
2 answers:
alexgriva [62]4 years ago
5 0

Answer:

26.19 m/s

Explanation:

The gravitational potential energy of the driver would convert to the kinetic energy at the bottom.

mg h = 0.5 mv^2

Where, m is the mass, v is the speed, h is the height and g is the acceleration due to gravity.

Given,

h = 35 m

v = \sqrt {2gh}= \sqrt {2\times 9.8\times 35} =26.19 m/s

MakcuM [25]4 years ago
3 0

It is good so what is what’s they says didn’t. Fiend. Diehard d fish
You might be interested in
during a workout, a football player pushes a blocking dummy a distance of 30 m. while pushing the dummy the same distance a seco
babymother [125]
Power=\frac{Work}{Time}=\frac{Force\times distance}{time}

If he wants to increase power, force must increase and decrease time.
8 0
4 years ago
Read 2 more answers
A baseball has a mass of 145 g. A bat exerts a force of 18,400 N on the ball. What is the acceleration of the ball?
amid [387]

The correct formula to use for the situation given above is: F = MA, where F is the applied force, M is the mass of the object and A is the acceleration.

From the details given in the question, we are told that:

F = 18, 400N

M = 145 g = 145 / 1000 = 0.145 kg

A = ?

From the equation F = MA

A = F / M

A = 18,400 / 0.145 = 126,896.55 = 1.27 *10^5.

Therefore, the correct option is C.

3 0
3 years ago
Read 2 more answers
Triangle XYZ has vertices X(0, 2), Y(4, 4), and Z(3, –1). Graph △XYZ and its image after a rotation of 180° about (2, –3).
Alla [95]

The image of the triangle is to be formed by rotating ΔXYZ 180 degrees about the (2, -3) as shown in the graph.

<h3>What is Geometry?</h3>

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

Triangle XYZ has vertices X(0, 2), Y(4, 4), and Z(3, –1).

If the triangle is ΔXYZ. Then the image of the triangle is to be formed by rotating ΔXYZ 180 degrees about the (2, -3) as shown in the graph.

More about the geometry link is given below.

brainly.com/question/7558603

#SPJ1

6 0
2 years ago
Calculate the change in total internal energy for a system that releases 2.59 × 104 kJ of heat and does 6.46 × 104 kJ of work on
mrs_skeptik [129]

Answer:

See explanation below

Explanation:

The equation to use for this is the following:

dU = q + w

As the heat is being release, this value is negative, and same here happens with the work done, because it's in the surroundings.

Therefore the change in the energy would be:

dU = -2.59x10^4 - 6.46^4

dU = -9.05x10^4 kJ

8 0
3 years ago
I want to know about the inventions caused due to rain. Like the Benjamin Franklin's Lightning Conductor. I have to make a chart
nydimaria [60]
Franklin had been waiting for an opportunity like this. He wanted to demonstrate the electrical nature of lightning, and to do so, he needed a thunderstorm.

He had his materials at the ready: a simple kite made with a large silk handkerchief, a hemp string, and a silk string. He also had a house key, a Leyden jar (a device that could store an electrical charge for later use), and a sharp length of wire. His son William assisted him.

Franklin had originally planned to conduct the experiment atop a Philadelphia church spire, according to his contemporary, British scientist Joseph Priestley (who, incidentally, is credited with discovering oxygen), but he changed his plans when he realized he could achieve the same goal by using a kite.
3 0
3 years ago
Other questions:
  • From the frame of reference of car 2, what is the velocity of car
    7·1 answer
  • Which of the following is an element?
    7·1 answer
  • In Florida, the standard defined speed limit in a residential area is ____ mph.
    6·1 answer
  • An object is represented by the dot on a motion map. What is the best description for the motion of this object? The object is m
    8·2 answers
  • If you know the distance an object has traveled in a certain amount of time you can determine
    12·2 answers
  • Rutherford once assumed that when the earth was first formed, it contained equal amounts of U-235 and U-238. From this, he was a
    7·1 answer
  • In a position-time graph what does it mean when you return to 0? ASAP HELP PLEASE!
    11·1 answer
  • In your experiment, you measure a total deflection of 4.12 cm when an electric field of 1.10×103V/m is established between the p
    6·1 answer
  • Larger size, longer life, and specialization are three advantages to<br> being a
    15·1 answer
  • A hot-air balloon plus cargo has a mass of 308 kg and a volume of 2910 m3 on a day when the outside air density is 1.22 kg/m3. T
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!