Energy stored in the nucleus of an atom is called

Answers

Answer 1

Answer: nuclear energy because it holds atoms together.

Answer 2

Answer: Atomic Energy or Nuclear Energy

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A 2.3 kg block is pulled across a friction-free horizontal surface, stretching a spring that has a spring constant of 18 N/m. At the moment it is released, the block accelerates at 0.27 m/s2. What is the net force that the spring exerts on the block? NHow far was the spring stretched at the moment it was released?
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A 60kg bicyclist (including the bicycle) is pedaling to theright, causing her speed to increase at a rate of 3.1 m/s2,
despite experiencing a 60N drag. Neglect any friction
impeding her motion.

How many forces are acting on the bicyclist?

What is the magnitude of the net force on the bicyclist?

How much force is the bicyclist generating through her
pedaling?

Answers

a) 4 forces

b) 186 N

c) 246 N

Explanation:

Let's count the forces acting on the bicylist:

1) Weight ( $W=mg$ ): this is the gravitational force exerted on the bicyclist by the Earth, which pulls the bicyclist towards the Earth's centre; so, this force acts downward (m = mass of the bicyclist, g = acceleration due to gravity)

2) Normal reaction (N): this is the reaction force exerted by the road on the bicyclist. This force acts vertically upward, and it balances the weight, so its magnitude is equal to the weight of the bicyclist, and its direction is opposite

3) Applied force ( $F_A$ ): this is the force exerted by the bicylicist to push the bike forward. Its direction is forward

4) Air drag ( $R$ ): this is the force exerted by the air on the bicyclist and resisting the motion of the bike; its direction is opposite to the motion of the bike, so it is in the backward direction

So, we have 4 forces in total.

Here we can find the net force on the bicyclist by using Newton's second law of motion, which states that the net force acting on a body is equal to the product between the mass of the body and its acceleration:

$F_(net)=ma$

where

$F_(net)$ is the net force

m is the mass of the body

a is its acceleration

In this problem we have:

m = 60 kg is the mass of the bicyclist

$a=3.1 m/s^2$ is its acceleration

Substituting, we find the net force on the bicyclist:

$F_(net)=(60)(3.1)=186 N$

We can write the net force acting on the bicyclist in the horizontal direction as the resultant of the two forces acting along this direction, so:

$F_(net)=F_a-R$

where:

$F_(net)$ is the net force

$F_a$ is the applied force (forward)

$R$ is the air drag (backward)

In this problem we have:

$F_(net)=186 N$ is the net force (found in part b)

$R=60 N$ is the magnitude of the air drag

Solving for $F_a$ , we find the force produced by the bicyclist while pedaling:

$F_a=F_(net)+R=186+60=246 N$

What tends to exist in periodic table?

Answers

The arrangement of the chemical elements, ordered by their atomic number, electron configuration , and recurring chemical properties.

What happens to the kinetic energy of a snowball as it rolls and gains mass.

Answers

If it is GAINING mass, the kinetic energy increases because it's still moving. If it stopped, it would then become potential energy.
yw XD
(just answered the same question just different user)

Kinetic Energy Increases

4 PointsA car of mass 1300 kg drives in a circle of radius 85 m. If the car has a speed
of 20 m/s, what is the centripetal force acting on the car?
O
A. 6118 N
O
B. 1300 N
O C. 7982 N
O D. 305.9 N
SUBMIT

Answers

Answer:

6118N

Explanation:

Are daffodils, producers, consumers, or decomposers? Please Help Me! :)

Answers

a daffodil is actually a producer

Producer because it produces food for other animals

Describe the role of the grass in the food web

Answers

Grass is a producer. It gets its energy from the sun, which i might add is by a process called,"photosynthesis", meaning the grass makes its own food. With this bew energy an animal such as a rabbit comes to eat it, that energy that the grass collected is now the rabbits.

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