A net force of 200 newtons is applied to a wagon for 3 seconds. This cause the wagons to undergo a change in momentum of ?

Answers

Answer 1

Answer: physics- damon, Monday, December 1, 2014 at 3:27 pm force =change in momentum\ change in time or m a if m is constant

change in momentum/3=200

change in momentum =3*200 kg m/s

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A boy throws a ball and accidentally breaks a window. The momentum of the ball and all the pieces of glass taken together after the collision is ________ the momentum of the ball before the collision

Answers

A boy throws a ball and accidentally breaks a window. The momentum of the ball and all the pieces of glass taken together after the collision is the same as the momentum of the ball before the collision. I think you forgot to give the choices along with the question. I hope that the answer has come to your great help.

A motor with a power of 7.0 × 104 watts lifts a loaded elevator to a height of 20.00 meters for 40 seconds. What is the force exerted by the motor on the elevator?

Answers

Answer:

$1.4\cdot 10^5 N$

Explanation:

First of all, we can find the work done as follows:

$W=Pt$

where P is the power and t is the time taken. In this problem, $P=7.0\cdot 10^4 W$ and $t=40 s$ , so the work done is

$W=Pt=(7.0\cdot 10^4 W)(40 s)=2.8\cdot 10^6 J$

The work done is equal to the force applied F times the displacement d:

$W=Fd$

since we know d=20.0 meters, we can re-arrange the equation to find the force exerted:

$F=(W)/(d)=(2.8\cdot 10^6 J)/(20.0 m)=1.4\cdot 10^5 N$

Answer:

C) 1.4 × 105 newtons

Explanation:

Correct answer on plato/edmentum

What lines the inferior surface of the diaphragm?

Answers

The roof of the abdominal cavity is inferior to the diaphragm.

When baking soda and vinegar react, the product includes bubbles. What has most likely occurred? would it be a gas formation, exothermic reaction or precipitate formtion

Answers

Once the gas has dissipated, the vinegar and baking soda undergo a chemical transition that results in carbon dioxide.

What is an exothermic reaction?

According to thermochemistry, an exothermic reaction is one in which the overall standard enthalpy change (H) is negative. Heat is often produced via exothermic reactions. Once the gas has dissipated, the vinegar and baking soda undergo a chemical transition that results in carbon dioxide.

Bicarbonate (NaHCO3) is what makes baking soda and acetic acid in vinegar (HCH3COO). The carbon dioxide that results from this process is one of the byproducts that produce bubbles. A chemical reaction occurs when vinegar and baking soda are combined, producing carbon dioxide gas, which fills the balloon and causes it to expand.

Therefore, once the gas has dissipated, the vinegar and baking soda undergo a chemical transition that results in carbon dioxide.

To know more about an exothermic reaction follow

brainly.com/question/6357350

#SPJ6

it turns into a gas and after the gas has left the chemical change is that the vinegar and baking soda will become a carbon dioxide

Determine the potential difference between two charged parallel plates that are 0.20 cm apart and have an electric field strength of 6.0 V/cm.

Answers

$V=Ed=0.20* 6=1.20$

V=E d
d=.20 cm
E=6 V/cm
V=.20×6
=1.2 V

Flatworms can be cut in half, creating two new individuals, by _____.binary fission
multiple fission
fragmentation
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Flatworms can be cut in halfcreating two individuals by binary fission. Binary fission is a type ofasexual reproduction in which the offspring has the same features andcharacteristics of the parent. During binary fission, the DNA replicates intotwo and goes at the end of each membrane. And then the cell membrane divides intotwo daughter cells. Then cytokinesis follow.

Answer:

If you think about you're cutting and Flatworm in half. Flatworms don't naturally divide/create new individuals by binary fission. So, the answer would be c) fragmentation; based on the fact that you are the one cutting the Flatworm, not the other way around.

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