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ElenaW [278]
3 years ago
9

Question 29 of 43

Physics
1 answer:
liraira [26]3 years ago
3 0
I agree with the first responses
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Momentum is a vector quantity that depends
MissTica
On the change in potential energy
3 0
3 years ago
A6 kg bag of rice is on the top shelf at a grocery store.
netineya [11]

Answer:

<h2>117.6 J</h2>

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 6 × 9.8 × 2

We have the final answer as

<h3>117.6 J</h3>

Hope this helps you

6 0
3 years ago
Read 2 more answers
Find the velocity, acceleration, and speed of a particle with the given position function. r(t) = t i + t2 j + 3 k v(t) = a(t) =
stepladder [879]

Answer:

Velocity

v= i + 2  j

Acceleration

a= 2 j

Explanation:

Given that

r(t) = t i + t² j + 3 k

We know that

Velocity v given as

v= dr/dt

dr/dt= i + 2 t j +0

v= i + 2 t j

At t= 1

v= i + 2 x 1 j

v= i + 2  j

Acceleration ,a

a=  dv/dt

v= i + 2 t j

dv/dt= 2 j

a= 2 j

6 0
3 years ago
Why does the amount of water that flows in a river change during the year?
Nina [5.8K]
Hey 

in the summer it is because of the meting  of snow 
in the spring it is rain

hope l helped
8 0
4 years ago
Hemoglobin (Hb) is the O2-carrying protein in our blood. Unlike myoglobin, it has four sites allowing it to bind up to four O2 m
bogdanovich [222]

Answer:

Yes, the energy is not simply the sum of the individual binding energies at each site, it is the product of energy at each binding site of hemoglobin.

Explanation:

Myoglobin and hemoglobin are two different cells. Myoglobin binds only one oxygen while the hemoglobin has the ability to binds four oxygen atoms at its four sides. Myoglobin present in muscle tissue only while hemoglobin is present in the whole body. Oxyhemoglobin is formed when oxygen binds with hemoglobin cell. This oxygen is take to all cells and energy is released due to the breakdown of glucose molecules with this oxygen.

4 0
4 years ago
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