A ping pong ball with a mass of 2.20 grams rolls along a frictionless table with a velocity of 0.850 m/s. What is the momentum of the ping pong ball?

Answers

Answer 1
Answer: The momentum formula:
Momentum = Mass * Velocity
m = 2.20 g = 0.0022 kg
v = 0.850 m/s
Momentum = 0.0022 kg * 0.850 m/s
Momentum = 0.00187  kgm/s
Answer 2
Answer:

Answer:

The momentum is actually 1.87 g m/s

Explanation:

The other answer was right however that isn't an answer to the question.


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6. Two blocks are released from rest at the same height. Block A slides down a steeper ramp than Block B. Both ramps are frictionless. The blocks reach the same final height indicated by the lower dashed line. Block B weighs more than Block A. a. Is the work done by the gravitational force on Block A (greater/less than/equal to) the work done by the gravitational force on Block B? Explain your reasoning. b. Is the speed of Block A (greater/less than/equal to) the speed of Block B? Explain your reasoning. c. Is the momentum of Block A (greater/less than/equal to) the momentum of Block B? Explain your reasoning.
Which of the following best explains why clear-cutting forests is more destructive than selectively cutting down trees in forests?a. Clear-cutting eliminates all trees leaving none behind to maintain soil fertility or house native animals. b. Clear-cutting places the land at greater risk for wildfires. c. Clear-cutting makes land more attractive for human development. d. Clear-cutting causes less soil erosion than selective cutting.

Which describes the electric forces inside an atom?A. Gravitational forces are much stronger than electric forces.

B. Electric forces and gravitational forces are equal in this setting.

C. Electric forces are much stronger than gravitational forces.

Answers

Answer:The correct answer is option C.

Explanation:

Electrical forces are forces between the charge particles of different charges or of same charges.This type of force is termed as electrostatics forces.

Like charges repel each other and unlike charges attract.They are dipole forces and stronger than the gravitational forces which only attracts and are monopole forces.

Atom consist of protons and electrons with positive and negative charge respectively.The force between these subatomic particles are very stronger than the gravitational forces between these particles.This is due to very smaller masses of protons and electrons the gravitational force between them is very small.

the correct answer is C hope this helps a little

An object at rest has no net force acting on it.
True or False​

Answers

That’s True bc an unbalanced force would need to keep and object in motion at a constant velocity.

Answer:

True

Explanation:

The object is at rest, which means it's not moving, so there is no net force on it, according to Newton's First Law.

Every 10 seconds a pendulum completes 2 cycles. what are the period and frequency of this pendulum

Answers


If it completes 2 cycles in 10 seconds, then each cycle
takes 5 seconds.  That's the period.

Frequency = 1 / period = 1 / 5 sec = 0.2 per sec = 0.2 Hz.


period 5 sec = 1 cycle
f = 1/period
.2


When Ava first opened her beverage, there were lots of bubbles. However, as her drink got warmer, she noticed that there were fewer bubbles in it. In general, as the temperature increases, the solubility of solids _______ while the solubility of gases _______. 1) increases, decreases 2) increases, increases 3) decreases, decreases 4) decreases, increases

Answers

In general, as the temperature increases, the solubility of solids increases, while the solubility of gases decreases. Therefore, the correct answer is 1) increases, decreases.

Final answer:

Generally, as temperature rises, solid solubility increases while gas solubility decreases. This is why when a carbonated drink gets warm, it has less bubbles.

Explanation:

Generally, as the temperature increases, the solubility of solids typically increases, while the solubility of gases usually decreases. Thus, for Ava's case with the beverage, as the drink got warmer (indicating an increase in temperature), the bubbles, which are gaseous, decreased. A real-life example of this is a carbonated drink. When you open a cold soda, it starts out very bubbly.

However, if you let it sit and warm up, the gas (carbon dioxide) becomes less soluble in the liquid and leaves the solution, resulting in fewer bubbles.

Learn more about Solubility and Temperature here:

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Why can't alpha particles penetrate deeply into solids? Alpha particles have low mass. Alpha particles have high mass. Alpha particles have low velocity. Alpha particles have high velocity.

Answers

Alpha particles have both high mass and low velocity, but it would be the former that determines why they can't penetrate. An alpha particle is made of two protons and two neutrons, which is quite a large mass for a particle. This large mass keeps it from penetrating too deeply into anything, since it will essentially "get stuck" when it comes too near to another atom.
So the answer, I believe, is B. Alpha particles have high mass.

The answer is the Alpha Particles have low velocity

How much work is done in the vertical direction if 125 N of force is needed to hold an object at shoulder height as a person walks 2 m forward

Answers

Work is the product of force multiplied by the distance moved, but since the distance moved in the vertical direction is zero

Work Done = 0 joules

Given data

Force = 125N

Horizontal Distance = 2 m

Vertical distance = 0 m

Formula for work

Work = Force * Distance

Solution

substitute the given information

Work Done in the horizontal direction= 125*2

Work Done = 250 Joules

Learn more about work here:

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