What is meant by "elastic collisions?

Answers

Answer 1

Answer:

When a moving car hits a parked car, causing the parked car to move, the type of collision is elastic collision. An elastic collision is when two bodies collide and separates after collision conserving the total kinetic energy before and after collision.

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A hobo hops a freight train traveling at 2.5 m/s due east. The man boards the train from the rear of the boxcar and walks from the southwest corner to the north east corner of the car at a rate of 5.0 m/s. The boxcar is 15 meters long and 3 meters wide. What is the velocity of the man relative to the train tracks?
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What is the total displacement of a bee that flies 2 meters east, 5 meters north, and 3 meters east? explain how you did it

Answers

The displacement covered by the bee that flies 2 meters east, 3 meters east, and 5 meters north is 7.05 meters.

What is Displacement?

Displacement of an object can be defined as the actual change in the position of an object. It is a vector quantity because it has both the direction and the magnitude.

The bee travels 2 meter east and 3 meters east. Therefore, the total distance covered in the east direction is (2+3) meters = 5 meters.

The bee travels 5 meters in the north direction. This makes a square of 5 meters dimension and in this condition, the displacement covered by the bee will be the diagonal of the square. Therefore, the total displacement of the bee can be calculated as:

Diagonal of square = $√(2)$ a

where, a = side of the square

Side of the square = 5 meters

Diagonal of the square = $√(2)$ × 5

$√(2)$ = 1.41

Therefore, diagonal = 1.41 × 5

Displacement of the bee = 7.05 meters

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It flies 2+3meters east and 5 meters north so it flies 5 east and 5 north. Then the way of it would be diagonal of 5x5 square it equals 5√2 which is 7.07.

Why is using two thin blankets in bed usually warmer than one thick one?

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Air pockets. Between two blankets, a pocket will form. Then, it will heat up along with the body heat.

i think it is because a big thick blanket has more room in it. if you have two thin blankets there isn't a whole lot there so it keeps the warmth in.

Do you know which component of the Star Wars movies is possible according to our current understanding of physics?

Answers

Although Star Wars have been purely fictional and concerns space travel and Physics, it has some components that is possible according to our current understanding of Physics. Take for example the TIE fighters spacecrafts. It stands for Twin Ion Engine. Currently, Ion engines are being used for actual flight.

A quantity of a gas is an absolute pressure of 400 K PA in the absolute temperature of 110° Kelvin when the temperature of the gas is raised to 235° Kelvin what's the new pressure of the gas?

Answers

Given:

P1 = 400 kPa
T1 = 110 K

T2 = 235K

Required:

Solution:

Apply Gay-Lussac’s law where P/T = constant

P1/T1 = P2/T2

P2 = T2P1/T1

P2 = (235K)(400kPa) / (110K)

P2 = 855 kPa

53 yards per hour into inches per week

Answers

53 yards per houris a speed value and when converted gives 320544 inches per week.

What is speed value?

The speed value is defined by the distance traveled by the object with reference to the time. It is a scalar quantity, with a magnitude but no direction. The speed is calculated using the formula:

Speed = Distance ÷ Time

It can be measured in, meters per second, miles per hour, kilometers per hour, etc.

From the known data:
7 days per week
24 Hours per day
3 ft per yard
12 inches per feet

The conversion of yards per hour into inches per week is given as:

= 53 yards per hour × 3 feet per yard × 12 inches per foot × 24 hour per day × 7 day per week

= 53 × 3 × 12 × 24 × 7
= 320,544 inches per week

Therefore, the unit is converted and is 320,544 inches per week.

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53 yards per hour would be 320544 inches per week :)

Hope this helps

Vitellium (Vi) has the following composition:Vi-188: 187.9122 amu; 10.861%Vi-191: 190.9047 amu; 12.428%Vi-193: 192.8938 amu; 76.711%Based on this data, what can you predict about the average atomic mass of vitellium?

Answers

(0.10861 x 187.9122) + (0.12428 x 190.9407)
+ (0.76711 x 192.8938) = 192.1100 amu

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A weight is connected to a spring that is suspended vertically from the ceiling. If the weight is displaced downward from its equilibrium position and released, it will oscillate up and down.If air resistance is neglected, will the total mechanical energy of the system (weight plus Earth plus spring) be conserved?A. YesB. No

A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.43 V and a current of 3.1 A are induced in the coil. The wire is then re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What (a) emf and (b) current are induced in the square coil

Which statements about acceleration are true?Check all that apply. A. The symbol for acceleration is . B. For acceleration, you must have a number, a unit, and a direction. C. To calculate acceleration, divide the change in velocity by the change in time. D. The SI units for acceleration are miles per hour per second.

_______ was the first person to propose the idea of moving continents as a scientific hypothesis. A. Antonio Snider-PelligriniB. Alfred WegenerC. Charles RichterD. Abraham Ortelius