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VashaNatasha [74]
3 years ago
11

You are applying force to an empty grocery cart and accelerating it at 10 m/s2. As you add groceries to the cart, its mass incre

ases. A) Based on Newton’s 2nd Law of Motion, what do you need to do to the net force you are applying to the cart in order to maintain an acceleration of 10 m/s/s. B) Explain why you need to do that, using Newton’s 2nd Law.
Physics
1 answer:
xenn [34]3 years ago
5 0

Answer:

answer: Increase applied Force

Explanation:

  • In order to maintain the same acceleration, the net force should be increased with the increase in mass of the cart by adding the Groceries.
  • From Newton's Second law of motion , we obtain expression as: F=Ma; where F is net force, M is mass and a is acceleration.
  • from the above expresssion, we can observe that force is proportional to the mass; hence we need to increase force with increase in mass.

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In a nuclear reactor 1 g of mass is converted into energy. How much energy in Joules is produced?
KengaRu [80]

Answer:

3 x 10^5  J

Explanation:

mass of substance, m = 1 g = 0.001 kg

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According to the Einstein mass energy equivalence, the energy associated with the mass is given by

E = m c^2

E = 0.001 x 3 x 10^8

E = 3 x 10^5  J

5 0
4 years ago
A visitor to the observation deck of a skyscraper manages to drop a penny over the edge. As the penny falls faster, the force du
pentagon [3]
If a coin is dropped at a relatively low altitude, it's acceleration remains constant. However, if the coin is dropped at a very high altitude, air resistance will have a significant effect. The initial acceleration of the coin will be the greatest. As it falls down, air resistance will counteract the weight of the coin. So, the acceleration will decrease. Although the acceleration decreases, the coin still accelerates, that is why it falls faster. When the air resistance fully counters the weight of the coin, the acceleration will become zero and the coin will fall at a constant speed (terminal velocity). So, the answer should be, The acceleration decreases until it reaches 0. The closest answer is.
a. The acceleration decreases.
8 0
3 years ago
Read 2 more answers
A force of 5 n produces an acceleration of 8m/s2 in mass m1 and an acceleration of 24 m/s2 in mass m2 .what acceleration would i
Inessa [10]

Acceleration of the both masses tied together= 6m/s²

Explanation:

The force is given by F= ma

so 5= m1 (8)

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for m2

5=m2 (24)

m2=0.208 kg

now total mass= m1+m2=0.625+0.208

Total mass=M=0.833 Kg

now F= ma

5= 0.833 (a)

a= 5/0.833

a=6m/s²

4 0
4 years ago
What form of music has two parts and has two contrasting melodies? *
aleksandr82 [10.1K]

Answer: Ternary

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Please mark as brainliest!

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3 years ago
When the plastic coating around a cord is damaged, why does the cord become hazardous?
klemol [59]
Because its expose to the wires inside that could electrify you. 
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