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
melamori03 [73]
2 years ago
6

Someone please help me! And I will mark you as brainlist!!

Physics
1 answer:
Gnoma [55]2 years ago
3 0

Answer:

Explanation:

PE = mgh = 2.0(9.8)(1.2) = 23.52 ≈ 24 J

Translation kinetic energy is defined as the energy of a system due to the motion of the system’s...center of mass

KE = ½mv² = ½(45)(1800/600)² = 202.5 ≈ 203 J  

You might be interested in
A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. after a short rest at the lake, she hi
3241004551 [841]

Let's choose east as positive x-direction and south as positive y-direction. We can resolve the two displacement along these two axes:

- Displacement 1 (3.5 km, 55^{\circ} south of west

d_{1x}=-(3.5 km)( cos 55^{\circ})=-2.01 km

d_{1y}=(3.5 km)( sin 55^{\circ})=2.87 km

- Displacement 2 (2.7 km, 16^{\circ} east of south

d_{2x}=(2.7 km)( sin 16^{\circ})=0.74 km

d_{1y}=(2.7 km)( cos 16^{\circ})=2.60 km

So, the total components on the two directions are

d_x = -2.01 km+0.74 km=-1.27 km

d_y=2.87 km+2.60 km=5.47 km

And the magnitude of the hiker's resultant displacement is

d=\sqrt{(1.27 km)^2+(5.47 km)^2}=5.6 km

8 0
3 years ago
Read 2 more answers
Which part of the neuron receives messages from other neurons?
kow [346]

Answer:

d

Explanation:

the dendrites is a part of the neuron receives messages from other neurons. Dendrites extend out from the cell body and receive messages from other nerve cells

3 0
2 years ago
If a ball is 10m high with what velocity will it fall?
Semmy [17]

14m/s

Explanation:

Given parameters:

Height of the ball = 10m

Unknown:

Velocity of fall or final velocity = ?

Solution:

We are going to use the appropriate equation of motion to solve this problem.

The object is falling with respect to gravity.

  V² = U² + 2gH

where V is the final velocity

            U is the initial velocity

             g is the acceleration due to gravity 9.8m/s²

             H is the height of fall

The initial velocity here is zero and

      V² = 2 x 9.8 x 10 = 196

       V = 14m/s

learn more:

Motion problems brainly.com/question/5248528

#learnwithBrainly

6 0
3 years ago
Why do seat belts help protect passengers when a car stops quickly? Explain your answer in terms of forces and motions.
Mamont248 [21]

Answer:

If the driver is wearing a seat belt, the seat belt rather than the windshield applies the unbalanced force that stops the driver's forward motion. The force from the seat belt is applied over a longer time, so the force causes less damage.

Explanation:

6 0
3 years ago
What is the average speed of a race car that moved 20 kilometers in 10 minutes?
Nadya [2.5K]

Answer:21

Explanation:every body said

8 0
3 years ago
Other questions:
  • A group of air particles in a balloon are spread far apart and moving rapidly around inside the balloon. The balloon is placed i
    14·1 answer
  • Each water molecule is joined to _____ other water molecules by ____ bonds.
    14·2 answers
  • Atoms of element A decay to atoms of element B with a half-life of 20,000 years. If there are 10,000 atoms of A to begin with (a
    6·2 answers
  • Calculate the work done when a 10 N force pushes against a cart 4.0 m
    15·2 answers
  • A constant 10.0-N horizontal force is applied to a 20.0-kg cart at rest on a level floor. If friction is negligible, what is the
    9·1 answer
  • A car is traveling 20 m s when the driver sees a child standing in the road. he takes 0.8 seconds to react, then steps on the br
    6·1 answer
  • The law of conservation of energy states that
    14·1 answer
  • The potential difference across a piece of wire is 2.1 v the current in the wire is 0.30 a calculate the resistance of the wire
    7·1 answer
  • Consider a system to be one train car moving toward another train car at rest. When the train cars collide, the two cars stick t
    10·2 answers
  • Please answer B, C, E, and D
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!