Answer:
Explanation:
the answer is rubber tape not friction tape
The volume of a 155-gram sample of mercury is 11.397 mL if the density of mercury is 13.6 g/mL.
It is defined as the mass-to-volume ratio. The density indicates the object's density and is represented by the symbol. The density is measured in kilograms per cubic meter.
It is given that:
The density of mercury is 13.6 g/mL.
The mass of the mercury is 155 grams.
As we know,
Volume can be defined as a three-dimensional space enclosed by an object or thing.
The density = mass/volume
13.6 = 155/volume
volume = 155/13.6
volume = 11.397 mL
Thus, the volume of a 155-gram sample of mercury is 11.397 mL if the density of mercury is 13.6 g/mL.
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b. Cuba and Venezuela
c. Russia and China
d. Egypt and Afghanistan
Answer:
0.276
Explanation: Here we have to consider the kinetic friction force acting on the body. If it is going at a constant speed according to newton's 1 st law. There was'not net force induced at the system. There for kinetic friction foce must be equal to the 50N .
But here we have been asked to get cofficient of static friction . There for you have to get static friction force. It should be 65N.
Mass of the object is 24. Then the reaction between surface and the object would be 24*9.8 = 235.2 N
There for using this,
Static friction force = Cofficient of static friction * Reaction
Cofficient of static friction = 65/235.2
= 0.276
Answer:
Explanation:
It is given that,
Mass of the crate, m = 24 kg
Force acting on the crate when it is at rest,
When the crate is in motion, force acting on the crate,
To find,
The coefficient of static friction between crate and floor
Solution,
When the crate is at rest, the force acting on the crate is given by :
When the crate is in motion, the force acting on the crate is given by :
Hence, this is the required solution.
3.0 meters, and then returns to first base.
Compared to the total distance traveled by the
player, the magnitude of the player’s total
displacement from the batter’s box is
(1) 3.0 m shorter (3) 3.0 m longer
(2) 6.0 m shorter (4) 6.0 m longer
Distance is a measure of the length of space covered over a certain period of time. While displacement is the change in position of an object from its starting point. Displacement is 6.0 meters shorterthan distance.
Total distance covered :
(Batter's box - > first base) + (beyond first base) + (return to first base)
Total Displacement :
(Batter's box - > first base) + (beyond first base) - (return to first base)
Difference in magnitude of Distance and Displacement :
Therefore, displacement is 6m shorter
Learn more :brainly.com/question/8283882
Answer:
(2) 6.0 m shorte.
Explanation:
Total distance = Distance from batter’s base to first base + Distance covered in overrunning + Distance covered in returning to first base
Total Distance = 27.4 + 3 + 3 = 33.4 m
Total displacement = Displacement from batter’s base to first base + Displacement covered in overrunning + Displacement covered in to returning first base
The 2nd and 3rd term will have same magnitude but opposite direction so, they will cancel out each other. Hence,
Total Displacement = 27.4 m
Hence, displacement will be 6.0 m shorter than distance.
Answer:
C) 5000 J
Explanation:
when diver is at some height , he is having some energy in the form of potential energy. when he dives, his potential energy is converted into kinetic energy . so kinetic energy and potential energy are equal.
Kinetic energy of diver = potential energy of diver
= mgh
= 500 x 10
= 5000 J .