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
Alexxx [7]
3 years ago
8

Which object would have MORE kinetic energy?

Physics
2 answers:
GuDViN [60]3 years ago
7 0

Answer:

energy \:  =  \frac{1}{2} m {c}^{2}  \\ energy \: is \: directly  \\ \: protional \: to \: mass \\ the \: hevier \: the \: object \\ the \: more \: k.e.

valentinak56 [21]3 years ago
6 0

Answer:

A dump truck going 70 mph

Explanation:

hope it helps you

You might be interested in
A 9 volt battery produces a current of 0.2A. What is the resistance?
nekit [7.7K]
9/0.2 would be the ans
4 0
3 years ago
A physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously shouts "Help"
Digiron [165]

Answer: a) The cliff is 532.05m high

b) Her speed just before hitting the ground is 102.12 m/s

Explanation: To solve This, I'll use a sketch diagram, attached to this solution,

In 3seconds, the teacher heard the echo of her initial scream back. We can obtain the distance the teacher had fallen at the end of 3 seconds using the equations of motion,

Y1 = ut + 0.5g(t^2)

Since she's falling under the influence of gravity, her initial velocity, u = 0m/s, g = 9.8m/s2, t = 3s

Y1, distance she fell through in 3 seconds = 0.5×9.8(3^2) = 44.1m

Let the total height of the cliff be (44.1 + x); where is the remaining height of cliff that the teacher will fall through.

Using the equations of motion again, we can obtain distance travelled by the sound waves in 3s. sound waves travel with a constant speed of 340m/s, no acceleration,

Y2 = ut + 0.5g(t^2) where g = 0, u = 340m/s, t = 3seconds

Y2 = 340 × 3 = 1020m

But in 3 secs, the sound waves would have travelled through the total height of the cliff (44.1 + x) and back to the teacher's current height, x. That is, 1020 = 44.1 + x + x

x = 487.95m

So, total height of cliff = 44.1 + 487.95 = 532.05m

b) the speed of the teacher just before she hits the ground.

Using the equations of motion again,

(V^2) = (U^2) + 2gs

Where v is the final velocity to be calculated

U is the initial velocity = 0m/s

g is acceleration due to gravity = 9.8m/s2

S is the total height she fell through, that is, the height of the cliff = 532.05m

(V^2) = 0 + 2×9.8×532.05 = 10428.18

V = √(10428.18) = 102.12m/s

QED!

4 0
3 years ago
Find the volume of the irregular object a marble
Lostsunrise [7]

By using Displacement method we can find volume of irregular object like marble.

<h3>What is displacement method?</h3>

In displacement method,  

First , we measuring the volume of water displaced by an object which tell us the volume of the object.

Secondly We can use the physical balance to determine its mass.

Lastly , calculate the density by dividing the mass by the volume.

Procedure to find the Volume of irregular object i.e. marble

step 1 - Fill the graduated cylinder about half full and measure the initial volume of water.

step 2 - Drop the marble in the graduated cylinder.

step 3 -Now measure the final level of water.

Step 4 - Subtract both the values.

Here , comes the Volume of Irregular Object.

For more volume related question visit here:

brainly.com/question/1578538

#SPJ1

7 0
2 years ago
11. A car travels at 25 m/s to the North. It has an acceleration of 2 m/s’ to the south
Anna11 [10]

Answer:

delta x= 100m

Explanation:

vi= 25 meters

a= -27meters

t=20s

find delta x

4 0
2 years ago
One gallon of gasoline in an automobiles engine produces on average 9.50 kg of carbon dioxide, which is a greenhouse gas; that i
Musya8 [376]

The annual production of carbon dioxide is 124121.49×10^{6}[/tex] kg.

First we calculate the fuel consumed by each car in a year

Fuel consumed=6990/21.4=326.63 gallon

Now we calculate the amount of fuel consumed by 40 million cars in a year

Fuel consumed=326.63*40*10^6=13065.42 million gallon,

Now we can calculate the annual production of carbon dioxide in the USA

CO2 production rate=9.50*13065.42=124121.49*10^6 kg

Therefore the annual production of carbon dioxide in USA is 124121.49×10^{6}[/tex] kg

4 0
3 years ago
Other questions:
  • Which gives the correct relationship for kinetic energy?
    8·2 answers
  • A train car has a mass of 10,000 kg and is moving at +3.0 m/s. It strikes an identical train car that is at rest. The train cars
    15·1 answer
  • The amplitude of a sound wave determines it's
    10·2 answers
  • If one has twice the length of the other, what is the ratio of the diameter of the longer wire to the diameter of the shorter wi
    9·1 answer
  • Why is hydroelectric power considered to be an example of multiple transfers of energy?
    10·1 answer
  • Interacting with others while exercising is beneficial to social health because it allows a person to __________.
    7·1 answer
  • A finite line of charge with linear charge density ????=3.35×10^−6 C/m and length L=0.588 m is located along the x ‑axis (from x
    14·1 answer
  • Please help me with this I need a 10 sentence for it please open the image
    7·1 answer
  • The provided text reads: "a typical lightning bolt may transfer 10^20 electrons in a fraction of a second, developing a peak cur
    13·1 answer
  • A standard drink is a unit of measurement. in the united states, a standard drink contains 0.6 fluid ounces of alcohol.which of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!