Wright true or false:1.A baseball has more momentum than a tennis ball traveling at the same speed.
2. A light ball has more inertia than a heavy ball
3. The less momentum a bowling ball has, the easier it is for that ball to knock down pins.
4. A heavy bowling ball is easy to get rolling because of its inertia.

Answers

Answer 1

Answer: true false false true

Answer 2

Answer:

Final answer:

A baseball has more momentum than a tennis ball traveling at the same speed. A light ball has less inertia than a heavy ball. The less momentum a bowling ball has, the easier it is for that ball to knock down pins. A heavy bowling ball is easy to get rolling because of its inertia.

Explanation:

1. True. Momentum is the product of an object's mass and velocity. Since a baseball has more mass than a tennis ball while traveling at the same speed, it has more momentum.

2. False. Inertia is the resistance of an object to changes in its motion. It depends on an object's mass. So, a heavy ball has more inertia than a light ball.

3. False. The more momentum a bowling ball has, the easier it is for it to knock down pins. Momentum is directly proportional to the force at which the ball hits the pins.

4. True. Inertia is the tendency of an object to resist changes in its motion. A heavy bowling ball has more inertia, making it easier to get rolling.

Learn more about Momentum and Inertia here:

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The ratio of Na to O is 2:1. What is the chemical formula for this ionic compound? NaO NaO2 Na2O Na2O2

Answers

Answer:

The molecular formula of the ionic compound will be $Na_2O$ .

Explanation:

The ratio of Na to O is 2:1

This means that for every two atoms of sodium there are 1 atom of oxygen.Then the molecular formula will be:

Let the number of sodium atom be 2x and oxygen atom be x

$Na_(2x)O_x=Na_2O$

The molecular formula of the ionic compound will be $Na_2O$ .

its C because i just anwserd it & it was right

In the metric system, the base unit for volume is the

Answers

The base unit would be liter.

The unit of volume most often used is the liter, because it's
so handy and useful in everyday life (except in the USA, that is).

But the liter isn't the "base unit" of volume. The base unit is the
cubic meter, and the liter is 0.001 of that.

Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? +8.6 m/s +5.7 m/s –5.7 m/s –8.6 m/s.?

Answers

Answer:

+5.7 m/s

Explanation:

According to the law of conservation of momentum is that the momentum before the collision is equal to the momentum after the collision. In an equation form it would look like this:

M₁V₁+M₂V₂ = M₁V₁'+M₂V₂'

Where:

M₁ = mass of object 1 (kg)

V₁ = velocity of object 1 before the collision (m/s)

V₁' = Final velocity of object 1 after the collision (m/s)

M₂ = mass of object 2 (kg)

V₂ = velocity of object 2 before the collision (m/s)

V₂' = Final velocity of object 2 after the collision (m/s)

According to your problem you have the following given:

M₁ = 5 g = 0.005kg

V₁ = 3 m/s

V₁' = -5m/s (It bounced off so it is going the other direction)

M₂ = 6g = 0.006kg

V₂ = -1 m/s (It is coming from the opposite direction of the 3-ball)

V₂' = ?

So we plug in what we know and solve for what we don't know.

$M_1V_1+M_2V_2 = M_1V_1' + M_2V_2'\n\n(0.005kg)(3m/s)+(0.006kg)(-1m/s) = (0.005kg)(5m/s)+(0.006kg)(V_2')\n\n(0.015kg\cdot m/s)+(-0.006kg\cdot m/s)=(-0.025kg\cdot m/s)+(0.006kg)(V_2')\n\n0.009kg\cdot m/s+0.025kg\cdot m/s = (0.006kg)(V_2')\n\n(0.034kg\cdot m/s)/(0.006kg) = V_2'\n\n5.7m/s = V_2'$

Answer:

+5.7 m/s

Explanation:

Just did the assignment :)

If a plane has an airspeed of 40 m/s and is experiencing a crosswind of 30 m/s, what is its ground speed in m/s?

Answers

Answer:50 $ms^(-1)$

Explanation:

Let $v_(a)$ be the airspeed.

Let $v_(w)$ be the cross wind speed.

We know that,ground speed is the vector sum of airspeed and cross wind speed and airspeed is perpendicular to cross wind speed.

If $v_(1)$ and $v_(2)$ are two perpendicular vectors,the resultant vector has the magnitude $\sqrt{|v|_(1)^(2)+|v|_(2)^(2)}$

Given,

$v_(a)=40ms^(-1)\nv_(c)=30ms^(-1)$

So,the ground speed is $\sqrt{40^(2)+30^(2)}=√(2500)=50ms^(-1)$

Which one of the following is a measurement of energy used?A.
24 meters per second

B.
60 milligrams

C.
15 liters

D.
6 joules

Answers

The correct answer to the question is D) 6 joules.

EXPLANATION:

As per the question, four measurements are given i.e 24 m/s, 60 mg, 15 L and 6 J.

We are asked to determine the measurement which corresponds to energy.

Energy is measured in various units like joule, erg, electron volt etc.

Joule is the unit of energy in S.I system.

Hence, the correct measurement which corresponds to energy is 6 joules.

All other measurements like 24 m/s, 60 mg and 15 L are not the measurements of energy. These are the measurements of speed, mass and volume respectively.

D. 6 Joules trust me i work with cars so i have to know this

The intensity or brightness of light depends on

Answers

the square of the amplitude

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