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
Triss [41]
3 years ago
14

How much kinetic energy does a 4.50kg block with a speed of 5.00m/s have?

Physics
1 answer:
OLga [1]3 years ago
4 0

Answer:

56.25J

Explanation:

Kinetic energy = 1/2 mv^2

Where m = mass

v = velocity

Given m = 4.50kg

v = 5.00m/s

Kinetic energy = 1/2 x 4.50 x (5.00)^2

= 1/2 x 4.50 x (5.00 x 5.00)

= 1/2 x 4.50 x 25

Multiply through

= 112.5/2

= 56.25J

You might be interested in
Why do some objects fall faster than others?
monitta

Answer:

Weight and Mass !!!!!!

Explanation:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

3 0
3 years ago
A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down. If the radius of the loop i
Mila [183]

Answer:

11.4 m/s

Explanation:

The expression for the Centripetal acceleration is :

a=\frac{v^2}{R}

Where, a is the accleration

v is the velocity around circumference of circle

R is radius of circle

In the given question,

a = g = Acceleration due to gravity as the car is at top = 9.81\ m/s^2

v = ?

R = 13.2 m

So,

9.81=\frac{v^2}{13.2}

v^2=9.81\times {13.2}

<u>v = 11.4 m/s</u>

8 0
3 years ago
What type of charges attract each other
Ksivusya [100]

Answer:

opposite charges attract each other while same charges repel each other.

~batmans wife dun dun dun.....

4 0
3 years ago
Calculate the pressure the fluid exerted on your diver. The acceleration of gravity is 9.8 m/s2 and the density of the water is
erica [24]

Complete question:

A diver is 10 m below the surface of water. Calculate the pressure the fluid exerted on the diver. The acceleration of gravity is 9.8 m/s2 and the density of the water is 1000 kg/m3. Answer in units of Pa. Show your work.

Answer:

Tthe pressure the fluid exerted on the diver is 1.99 x 10⁵ Pa

Explanation:

Given;

density of water, ρ = 1000 kg/m³

diver's position below the surface of the water, h = 10 m

acceleration due to gravity, g = 9.8 m/s²

Let the atmospheric pressure, P₀ = 101325 Pa

The pressure 10 m below the surface of the water is calculated as;

P =  P₀  + ρgh

P = 101325 Pa  +  (1000 x 9.8 x 10)Pa

P = 199325 Pa

P = 1.99 x 10⁵ Pa.

Therefore, the pressure the fluid exerted on the diver is 1.99 x 10⁵ Pa

5 0
3 years ago
Which mixture can be separated based on differences in particle size of the components? Check all that apply.
slamgirl [31]
It’s not Cereal and Milk, carbonated drinks, and smoky air
6 0
3 years ago
Other questions:
  • Letter C on the map labels which feature of the Middle East?
    9·1 answer
  • The person given credit for the first modern atomic theory was __________.
    8·1 answer
  • When ethane (c2h6) reacts with chlorine (cl2) the main product is c2h5cl; but other products containing cl (chlorine), such as c
    10·1 answer
  • I do not know the answer nor the equation.
    11·1 answer
  • A 2.40 cm × 2.40 cm square loop of wire with resistance 1.20×10−2 Ω has one edge parallel to a long straight wire. The near edge
    12·1 answer
  • Sven's team put its insulated ice cube into a sealed plastic container. Which
    14·1 answer
  • How does creativity affect scientific work?
    13·2 answers
  • Do Small objects exert no gravitational force ? True or false
    8·1 answer
  • When is a secondary source more helpful than a primary source?
    10·1 answer
  • Which statement illustrates how progress in engineering has affected the natural enironment
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!