A car of mass 1535 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. If the velocity of the truck is 17 km/h (in the same direction as the car's initial velocity) after the collision, what was the initial speed of the car <u>20kmh</u>
<h3>What is
collision ?</h3>
A collision in physics is any situation in which two or more bodies quickly exert forces on one another. Despite the fact that the most common usage of the word "collision" refers to situations in which two or more objects clash violently, the scientific usage of the word makes no such assumptions.
The following are a few instances of physical encounters that scientists might classify as collisions:
- Legs of an insect are said to collide with a leaf when it falls on one.
- Every contact of a cat's paws with the ground while it strides across a lawn is seen as a collision, as is every brush of its fur with a blade of grass.
To learn more about collision from the given link:
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Answer:infrared radiation
Explanation:
Most remote control uses infrared radiation
Answer:
q.1 : Air near candle gets heated up and after this it rises by convection so the thermometer B will receive more heat than the thermometer A So, according to the given condition thermometer B will show a greater rise in temperature.
q.2 : x is the pure sample of compound
. y is the pure sample of element
. z is the mixture of different elements
q.3 : the saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.
Kate's recollection of these different events along her life best exemplifies the use of her episodic memory.
<h3>What is episodic memory?</h3>
The term episodic memory makes reference to conscious personal background experiences that were collected along life.
Episodic memory is also defined as the collection of all life-day experiences collected by a person.
The episodic memory may be, for example, the first day when a person drove his/her car or a bike.
Learn more about episodic memory here:
brainly.com/question/25040884
Explanation:
A light bulb changes electrical energy into <em>heat energy and light energy .</em>
