Robert is accelerating a cart at the rate of 2.2 meters/second2. If the mass in the cart is doubled, and the net force is also doubled, what is the final acceleration?

Answers

Answer 1

Answer: f = ma
double f and m gives
(2f) = (2m)a
notice a is unchanged = 2.2
m/s^2

Answer 2

Answer:

C) The Acceleration Is Doubled

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_____________ is an excessive current relative to normal operating current, but one that is confined to the normal conductive path provided by the conductors, circuit components, and loads of the distribution system. A(n) _________ is a current that flows outside the normal conducting path. One generally accepted definition of _______is when a phase or ungrounded conductor comes in contact with, or arcing current flows between, another phase conductor, neutral, or ground.

Answers

Answer:

Overload current, short-circuit current and short circuit

Explanation:

Overload current is an excessive current relative to normal operating current, but one that is confined to the normal conductive path provided by the conductors, circuit components, and loads of the distribution system.

A short-circuit current is a current that flows outside the normal conducting path.

One generally accepted definition of short circuit is when a phase or ungrounded conductor comes in contact with, or arcing current flows between, another phase conductor, neutral, or ground.

Which initial quantity is the same for all three cannonballs? Option 1: Mass Option 2: Volume Option 3: Density Option 4: Velocity

Answers

Answer:

Velocity: At rest they all have zero velocity.

Explanation:

Is there more information (e.g., mass, volume, etc.) for the cannonballs?

Assuming they are at rest, their velocity is the same: 0

A person of 45 kg can accelerate at 1.5 m/s² on a straight road. What is the force created? a) 46.5 N b) 67.5 N c) 30 N d) 0.033 N

Answers

Answer:

b) 67.5 N

Explanation:

Force (F) = mass (m) × acceleration (a)

The mass (m) is 45 kg, and the acceleration (a) is 1.5 m/s². Plug these values into the formula:

F = 45 kg × 1.5 m/s²

F = 67.5 N

So, the force created by the person is 67.5 Newtons.

Which of these diagrams best represents the steps in the formation of planets? A) The sun is born > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born
B) The clouds flatten into a disc > The sun is born > The clouds condense > the planets are born
C) The clouds of dust and gases rotate at high speed > The clouds condense > The sun is born > The planets are born
D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born

Answers

Answer:

D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born

Explanation:

Planets are formed from Planetary nebula. The cloud of dust and gases condenses under its own weight. The condensed matter starts rotating at high speeds and gathers more mass. The core forms the star and rest of it eventually flattens into an elliptical disc from which planet is born. Thus, the correct sequence is: D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born.

The right answer for the question that is being asked and shown above is that: "C) The clouds of dust and gases rotate at high speed > The clouds condense > The sun is born > The planets are born " This is the diagram that best represents the steps in the formation of planets

Question number 6 :

Is my answer right?? Plzz help

Answers

No. You have the units wrong.

Example with numbers:

When you multiply (1/9) by 2, you get 2/9 .

With units:

When you multiply (m/s) by (kg), you get (kg-m/s).

If a wave has a frequency of 2 Hz. what is the period

Answers

The period is the reciprocal of the frequency ... ' 1 ' divided by it.

P = 1/f = 1 / (2 per second) = 1/2 second

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