The solution for this problem is:
This is just a statics problem since no one of the components of the system is touching. The bowl and the smaller cat will have a habit of to twist the seesaw one way, while the weightier cat will twist it the other way.But since the weight of the cat and bowl of tuna is not given, we will assume that:Weight of the cat is 5.4kgAnd the weight of the tuna bowl is 2.5kgLength of the seesaw is 4m, but since the cat and the tuna bowl is in each half, it will be 2 m.(5.4 x 2) = 10.8kg/m. torque. (2.5 x 2) m= 5kg/m. for bowl.
Difference = (10.8 - 5) = 5.8kg/m.
(5.8/3.8) = 1.5 meters left of the pivot.
Carbon-14 is naturally created with the interaction of high-energy cosmic rays with atmospheric nitrogen. As part of the atmosphere, living organisms take in the carbon and incorporate this into living tissues. As long as the organism is alive and breathing, it keeps adding new carbon-14. When the organism dies, it stops gaining carbon-14 - or anything else, of course.
Carbon-14 is slightly radioactive, with a half-life of about 5700 years. If we assume that the atmospheric production of carbon-14 has been steady for the last 100,000 years, we can calculate the approximate age of when the organism died by determining what percentage of carbon-14 still exists in the dead material.
Paleo-archaeologists and anthropologists use this information when studying old cultures and civilizations.
Answer:c=0.213 J/g/K
Explanation:
Given
sample mass
initial temperature of mineral
mass of water
Water initial temperature
Heat capacity of calorimeter =15.3 J/k
Final Temperature is 24.8
let c be the specific heat of mineral
Heat released by mineral sample=heat absorbed by calorimeter and water
Answer:
It takes 1600 seconds or hours to travel a distance of 20 km.
Explanation:
Given:
Speed of the motorcycle,
Distance traveled by the motorcycle,
We know that,
∴
Plug in 20 km for and 45 km/h for . Solve for time.
⇒ Time =
Therefore, the time taken to travel a distance of 20 km is 1600 seconds or hours.
Answer:
Placed the semicircular plastic block on the centre of a blank sheet of paper. Traced its outline and indicated the centre of the flat side
Explanation: