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
luda_lava [24]
3 years ago
12

a truck on the freeway, traveling at 30 m/s slams on the brakes. the truck comes to a rest in 4.7 seconds & travels 70 meter

s while stopping. what was the trucks acceleration while braking?
Physics
1 answer:
seropon [69]3 years ago
7 0

Answer: 76

Explanation:

You might be interested in
Determine the maximum r-value of the polar equation r =3+3 cos 0
AURORKA [14]

[r] =6  

Solve for r by simplifying both sides of the equation, then isolating the variable.

<em> </em>I hope this makes sense


8 0
3 years ago
Read 2 more answers
Think about the process of pulling down the spring and letting it go. For this event, list each form of energy associated with t
Afina-wow [57]

Answer:

  1. gravitational 2.force of gravity

Explanation:

1.it ocours when an object is thrown into the sky. 2.iy ocurs when an object is falling or being pulled from the sky

6 0
2 years ago
Thiết bị trao đổi nhiệt ngược chiều, nhiệt độ chất lỏng nóng vào là 310°C, ra là 115°c. Nhiệt độ chất lỏng lạnh vào là 25°c và r
Vika [28.1K]

Answer: 129.5 m

Explanation:

310 + 115 + 25 + 68 = 518

518 / 4 = 129.5 m

i think. Sorry if this is wrong

:)

5 0
3 years ago
Match each form of Energy with it's definition. Energy of motion Question 7 options: mechanical energy kinetic energy chemical e
Komok [63]

Answer:

a fireplace or burn gasoline in a car's engine.

Mechanical energy is energy stored in objects by tension. Compressed springs and stretched rubber bands are examples of stored mechanical energy.

Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus together. Large amounts of energy can be released when the nuclei are combined or split apart.

Gravitational energy is energy stored in an object's height. The higher and heavier the object, the more gravitational energy is stored. When a person rides a bicycle down a steep hill and picks up speed, the gravitational energy is converting to motion energy. Hydropower is another example of gravitational energy, where gravity forces water down through a hydroelectric turbine to produce electricity.

Kinetic energy

Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects.

Radiant energy is electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays, and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible.

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth.

Motion energy is energy stored in the movement of objects. The faster they move, the more energy is stored. It takes energy to get an object moving, and energy is released when an object slows down. Wind is an example of motion energy. A dramatic example of motion energy is a car crash—a car comes to a total stop and releases all of its motion energy at once in an uncontrolled instant.

Sound is the movement of energy through substances in longitudinal (compression/rarefaction) waves. Sound is produced when a force causes an object or substance to vibrate. The energy is transferred through the substance in a wave. Typically, the energy in sound is smaller than in other forms of energy.

Electrical energy is delivered by tiny charged particles called electrons, typically moving through a wire. Lightning is an example of electrical energy in nature.

7 0
3 years ago
Which type of lever is exemplified by the flexing of the forearm by the biceps brachii muscle?
ira [324]

Answer:

a third class lever

Explanation:

The third class or interpower lever is a lever that enables fast and dynamic movements. It places the power between the resistance and the support, so the resistance arm is longer than the power.

It is the most frequent type of lever in the human body and as an example we can put the action of the brachial biceps in the flexion of the elbow, where the biceps is inserted in the forearm between the elbow that is behind and the resistance that would be displaced towards the hand by the weight of the load attached to the weight of the forearm.

A good range of movements is achieved although with less force and is the most frequent type of lever in human movement, although the same joint can form different types of lever depending on the type of movement performed .

8 0
4 years ago
Other questions:
  • If a girl is standing in front of a smooth surface from which a sound is reflected, the girl may hear
    11·2 answers
  • A 500 N passenger weighs 24500 N elevator that rises 30 m in exactly 1 minute how much power is needed for the elevators trip
    7·1 answer
  • James gently releases a ball at the top of a slope But does not push the ball. Space the ball rolls down the slope. Which force
    10·2 answers
  • What is a smash shot?<br> (BADMINTON)
    15·1 answer
  • Which of the following statements are true regarding electromagnetic waves traveling through a vacuum? (Select all that apply.)
    8·2 answers
  • A skateboarder rolls off a horizontal ledge that is 1.32m high and lands 1.88m from the base of the ledge. What was the initial
    11·1 answer
  • What #of protons ,electrons ,and neutrons are in zinc
    13·1 answer
  • Helppppp!!<br> can a current run through a metal conductor can create a magnetic field
    5·1 answer
  • An elevator is pulled up by a cable with a force of 65,000 N. The upward acceleration of the elevator is 1.8 m/s/s. What is the
    7·1 answer
  • A 2400W electric toaster is connected to a standard 120 V wall outlet. A family
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!