Why are temperature and thermal energy similar and why are they different?

Answers

Answer 1

Answer: Temperature is the measurement of the average amount of particles in a solid, liquid or gas. Thermal energy is the total energy in a set amount of solid, liquid or gas.
They are similar because they are both about particle theory. Particle theory is a theory about solid, liquid or gas that every particle is always in motion. They are different because temperature is the "measurement", which is shown as numbers, of the particles in a solid, liquid or gas, but the thermal energy is the "total energy" in a set amount of solid, liquid or gas.

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4. In the Exploration, the sled does not move at all when two equal forces are appliedopposing directions. Explain the reason behind this.

Answers

Answer:

The net force is zero, so the acceleration is zero

Explanation:

Newton's second law states that the acceleration of an object is proportional to the net force applied to it, according to the equation:

$\sum F = ma$ (1)

where

$\sum F$ is the net force on the object

m is the mass of the object

a is its acceleration

In this problem, we have a sled acted upon two forces, $F_1, F_2$ . So the net force on the sled is

$\sum F = F_1 + F_2$ (2)

however, we are told that the two forces are equal in magnitude but in opposite directions, so

$F_1 = F\nF_2 = -F$

So, eq.(2) becomes

$\sum F = F+(-F) = 0$

and so eq.(1) becomes

$\sum F = ma = 0$

which means

$a=0$

so the acceleration of the sled is zero, and if the sled was at rest, it will not move.

1.A poorly tuned Yugo can accelerate from rest to a speed of 28 m/s in
20 s.
a) What is the average acceleration of the car?
b) What distance does it travel in this time?

Answers

The average acceleration of the car is 1.4 m / s^2.
The distance travel at this time is 560 m.

Explanation:

Average acceleration is defined as the rate of change of velocity to the rate of change of period. Change of velocity refers to the difference between final velocity and initial velocity. The unit of acceleration is meter/sec/sec (or) m s^2.

Avg Acceleration=(Final velocity - Initial velocity) /(Final time - Initial time)

a. To find the average acceleration of the car, (initial velocity and initial time is 0, the final velocity is 28 m/s, final time = 20 s)

Avg acceleration of the car = (28 - 0) / (20 - 0)

= 28 / 20 = 1.4 m / s^2.

b. The distance traveled is given by the product of speed and time

Distance traveled = Speed * Time

The Distance traveled by the car = 28 * 20 = 560 m.

Final answer:

By applying basic physics formulas, the car's average acceleration can be determined as 1.4 m/s², and the distance it travels in 20 seconds is 280 meters.

Explanation:

To answer this question, you'll need to apply basic physics formulas. Let's go step by step:

a) What is the average acceleration of the car?

Acceleration is defined as the rate of change of velocity per unit of time. The formula is Acceleration = (Final speed - Initial speed) / Time. Here, the initial speed is 0 (because the car is starting from rest), final speed is 28 m/s and time is 20 s.

So, Acceleration = (28 m/s - 0) / 20 s = 1.4 m/s². That's your answer for part a.

b) What distance does it travel in this time?

The distance traveled by the car can be found using the formula of linear motion: Distance = Initial speed x Time + 0.5 x Acceleration x Time². Since the car starts from rest, the initial speed is zero, and this component of the formula will be zero.

So, Distance = 0 + 0.5 x 1.4 m/s² x (20 s)² = 280 m. So, the car travels 280 meters in that time.

Learn more about Physics Acceleration and Distance here:

brainly.com/question/32817533

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A person weighing 500 N climbs on a rope. What is the tension on the rope?

Answers

At the times when the person is not moving up or down, the tension in
the rope is 500N. At those moments, the forces on the person consist
of 500N downward due to gravity and 500N upward due to the tension in
the rope, and with the forces balanced, the person just hangs there and
doesn't accelerate up or down.

At the times when the person is actually climbing, that is, hauling himself
upward, the tension in the rope must be greater than 500N. At those moments,
the net force on the person is upward, and the person's body accelerates upward.

the tension of a person weighing 500 pounds on a rope will make the rope break little by little,untill it gets to the point the rope snaps.

What are two advantages and two disadvantages of using fossil fuels

Answers

Advantages
Fossil fuels are easy to find beneath the earths surface , fossil fuels has unlimited potential, and fossil fuels are very cost effective, especially coal.

Disadvantages
Burning fossil fuels can cause greenhouse effect which is harming the environment and mining fossil fuels may also endanger the lives of animals.

Relate balanced and unbalanced forces to net forces

Answers

Answer:If the forces on an object are balanced, the net force is zero.

Explanation:

If the forces are unbalanced forces, the effects don't cancel each other. Any time the forces acting on an object are unbalanced, the net force is not zero, and the motion of the object changes.

David hops in his 600-kg dune buggy and travels 20 m/s to the east. Meanwhile, Serap drives her 500-kg dune buggy at 30 m/s east and tries to catch David.What is davids momentum?

what is serap's momentum

what is the total momentum of the entire system?