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gayaneshka [121]
4 years ago
11

Anita is running to the right at 5 m/s , as shown in (Figure 1) . Balls 1 and 2 are thrown toward her by friends standing on the

ground. According to Anita, both balls are approaching her at 16 m/s .
According to her friends, with what speed was ball 1 thrown?

According to her friends, with what speed was ball 2 thrown?
Physics
1 answer:
Bad White [126]4 years ago
4 0
Show us Figure 1 and we'll have the answer in a flash. Without it, not a chance. That's why it's there.
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8. If the mass of a balloon is 300 kg and the lift force provided by the atmosphere is 3300 N, what
zmey [24]

Answer:

Toward the north, 300 N

Explanation:

Consider the upward direction as positive and downward direction as negative.

Given:

Mass of the balloon is, m=300\ kg

Lift force on the balloon in the upward direction is, F_L=3300\ N

Take acceleration due to gravity as 10 N/kg.

Now, weight of the balloon acting downward is given as the product of its mass and acceleration due to gravity. Therefore,

Weight is, W=mg=(300\ kg)(10\ N/kg)=-3000\ N

Now, net force is given as the vector sum of both the forces.

F_{net}=F_L+W\\F_{net}=3300-3000=300\ N(\textrm{Upward direction})

The upward direction is the direction of North. So, the net force acting on the balloon is 300 N towards North.

3 0
3 years ago
Think about the types of forces holding the atoms together in different chemicals. Are there any patterns that can be drawn from
Leya [2.2K]

Hello. You did not enter the data to which this question refers, which makes it impossible for it to have an exact answer. However, I will try to help you in the best possible way.

The forces that hold the elements together are called intermolecular forces. They are formed by covalent bonds between the molecules and can be called: dipole-induced (occurs between nonpolar molecules that have a negative pole and a positive pole) and dipole-dipole (occurs between polar moileculas, except when hydrogen is present).

5 0
3 years ago
Another word for stored energy is <br> 1 potential <br> 2 kinetic
scoray [572]

Answer:

Potential

Explanation:

Potential energy is the energy stored while kinetic energy is motional energy.

Potential itself means "having capacity/energy".

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
3 years ago
A radar station detects an airplane approaching directly from the east. at first observation, the range to the plane is d1 = 354
PolarNik [594]
The airplane is tracked for another 123° in the vertical eastwest plane
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3 years ago
Which of these forces pull or push upward, and which pull or push downward? Explain.
PtichkaEL [24]

Answer:

A force is a push or pull that acts upon an object as a result of that objects interactions

Explanation:

8 0
4 years ago
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