Heat is best defined as
1 answer:
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Answer:
Surface tension in water
Friction between tires and pavement
Dissolution of salt in water
Explanation:
Surface tension in water: It is due to the electrostatic force of attraction (cohesive force) between water molecules.
Friction between tires and pavement: It is due to the attractive force between tires and pavement.
Dissolution of salt in water: The ions of and
separate due to the strong attraction of water molecules.
Here’s the solution. There was no angle given so I feel this is the possible answer
Answer:
t = 3.3 s and V = 15 m/s
Explanation:
Given that,
Distance covered by the car, d = 50 m
Initial speed, u = 5 m/s
Final speed, v = 25 m/s
Firstly we can find the acceleration of the car using third equation of motion. i.e.
Let t is the time taken by the car to occur this.
Let v is the average velocity of the car. It can be calculated as follows :
So, the time taken by the car to occur this is 3.3 seconds and the average velocity of the car is 15 m/s.