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liubo4ka [24]
3 years ago
6

A hockey puck slides across the ice and eventually comes to a stop. Why did the puck stop?

Physics
2 answers:
nignag [31]3 years ago
6 0

Answer:

because it decrsces the force of momentome by sliding on the ice.

Explanation:

ella [17]3 years ago
3 0

Answer: the total energy of the puck, ice surface, and surrounding air decreases to zero

Explanation:

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Removing the radiator cap is advisable as it will help release steam and cool an overheated engine quicker.
stepan [7]

Answer:

False.

Explanation:

Removing the radiator cap will harm you. If the engine is hot and you open the radiator cap then it will cause the liquid boil, pushing the coolant out of the radiator and spraying around the liquid which can harm the person who is opening that cap. So you should aware of the risk and be prepared to avoid danger.

5 0
4 years ago
Angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes (the):
Vsevolod [243]

Angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle

<h3>What is the line focus principle?</h3>

The line focus principle states that as the anode angle is reduced, the actual focal spot also becomes small but the heat loading is increased.

It also explains the relationship between the anode surface and the effective focal spot size.

As a result of this, by angling the target, effective area of the target is made much smaller that the actual area of electron interaction.

Hence, angling of the focal track of the anode to create a large actual focal spot and a smaller effective focal spot describes the line focus principle.

Learn more about line focus principle here:

#SPJ1

3 0
2 years ago
8. A 20 newton object is pulled along a surface at a constant speed of 3.0 meters per second using a force of 4.5 newtons. The k
tia_tia [17]

To calculate the kinetic coefficient of friction is closest to: 1. 0.23.

<u>Given the following data:</u>

  • Horizontal force = 4.5 Newton
  • Normal force = 20 Newton
  • Speed = 3.0 m/s

To calculate the kinetic coefficient of friction:

Mathematically, the kinetic force is given by this formula;

F_k = uF_n

<u>Where;</u>

  • F_k represents the kinetic force.
  • F_n is the normal force.
  • μ represents the kinetic coefficient of friction.

Making μ the subject of formula, we have:

u=\frac{F_k}{F_n}

Substituting the given parameters into the formula, we have;

u=\frac{4.5}{20}

u = 0.225 ≈ 0.23

Read more on kinetic coefficient of friction here: brainly.com/question/13940648

6 0
3 years ago
A lighting strike heats the air to about ______ degrees Celsius
den301095 [7]

Answer:

20,000, though, I'm not completely sure.

Explanation:

"Sound is generated along the length of the lightning channel as the atmosphere is heated by the electrical discharge to the order of 20,000 degrees C (3 times the temperature of the surface of the sun)."

4 0
4 years ago
Write code to add two numbers, 5 and 7. Then display the sum on the serial monitor.
77julia77 [94]

Answer:

Explanation

Using the Python 3 syntax in writing the code.

First we will define a function 'add_numbers', parse in the variables x and y and return its sum as shown.

Then we carry out the addition of 5 and 7.

def sum_numbers(x, y):

return x+y

sum_numbers(5, 7)

3 0
3 years ago
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