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Blizzard [7]
3 years ago
8

A student jumps straight up from a diving board that is 3.1 m above the water and hits the water 2.4 seconds later. With what ve

locity did the student Jump?
Physics
1 answer:
amm18123 years ago
7 0

Answer:

10. m/s

Explanation:

Given:

y₀ = 3.1 m

y = 0 m

a = -9.8 m/s²

t = 2.4 s

Find: v₀

y = y₀ + v₀ t + ½ at²

0 m = 3.1 m + v₀ (2.4 s) + ½ (-9.8 m/s²) (2.4 s)²

v₀ = 10.47 m/s

Rounded to two significant figures, the student's initial velocity was 10. m/s.

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How does the science of heat transfer differ from the science of thermodynamics?
mariarad [96]

Answer:

The science of thermodynamics deals with the fundamental laws that guide how physical processes occur in relation with the energy transfer. When a system or process changes from one state of equilibrium to another, thermodynamics is interested with the amount of heat transfer during the process. On the other hand, the science of heat transfer is simply about the rate of heat and temperature distribution inside a system at a particular point in time.

Explanation:

3 0
3 years ago
____ developed the first model of the atom that showed the structure of the inside of an atom. A. Dalton B. Bohr C. Rutherford D
Elan Coil [88]

Answer:

D. Thomson

Explanation:

The first model of the atom was proposed by J. J. Thomson.

6 0
4 years ago
A car accelerates from rest at 2 m/s. what is the speed after 8 sec?
beks73 [17]

Answer:

16m/s

Explanation:

v_{f}=v_{i}+at

v_{f}=0+2\cdot8

v_{f}=16\ \frac{m}{s}

Therefore,  the speed after 8 seconds is 16m/s

6 0
3 years ago
Can someone help me with this
yKpoI14uk [10]

bonded pairs of electrons, lone pairs of electrons.

4 0
3 years ago
What role do currents play in transporting heat? How does water temperature affect land nearby?
yarga [219]

When warm currents move over cool land surface, they dissipate heat due to the temperature gradient . They hence warm up the land they blow over. If a cold current blows over warm land, the land loses heat to the current. This is how currents distribute heat across the earth.


When the current blow from water to land, the current will be warm or cold depending on the water temperatures. Therefore, they will warm up or cool the adjacent land mass.

 






7 0
4 years ago
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