what velocity must a 1340kg car have in order to have the same momentum as a 2680kg truck traveling at a velocity of 15 m/s to the west

Answers

Answer 1
Answer: IR = Q

Q = m . v

Qtruck = 2680 . 15

Qt = 40.200 kg . m/s

Then,

Qcar = Qt

m . V = 40 . 200

1340 . V = 40.200

V = 40 . 200 / 1340

V = 30 m / s


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A 20 kg crate of books is at rest on a table. what is the normal force on the books?

Answers


The weight of 20 kg is

                             (mass) x (gravity) =

                                   (20 x 9.8) = 196 newtons, downward.

There must be a force of 196 newtons upward on the mass. 
Otherwise the mass is accelerating either up or down.
 

Which of the following refers to the increasing size of deserts worldwide? A. disintegration B. desertification C. decomposition D. disaggregation

Answers

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The answer is B i just took the test and got it correct!

Sehidy the given figure and calculate the load distance. Given: 325 N, 40 cm Unknown: 650 N, ?

Answers

the load distance is approximately 0.2 meters or 20 cm. To calculate the load distance in this scenario, we can use the principle of moments, which states that the sum of clockwise moments about a point is equal to the sum of counterclockwise moments about the same point when an object is in equilibrium.

In this case, we have two forces:

1. A known force of 325 N applied at a distance of 40 cm (0.4 meters) from the point of interest.

2. An unknown force of 650 N applied at an unknown distance, which we need to find.

Let's assume the unknown distance is "d" meters.

Using the principle of moments:

Clockwise Moment = Counterclockwise Moment

(325 N) * (0.4 m) = (650 N) * (d m)

Solving for "d":

d = (325 N * 0.4 m) / 650 N

d ≈ 0.2 meters

So, the load distance is approximately 0.2 meters or 20 cm.

To know more about moments:

brainly.com/question/33127998

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Fill in the blank with the correct response.Employing the use of a(n)
will help you manage a STEM project.

Answers

Answer:

technicians

Explanation:

What factors could slow down a reaction time?

Answers

Answer: To keep it basic start with temprature and inhibitors such as drugs that slow enzymes

surface area, temperature, concentration, and the presence of catalysts and inhibitors

Explanation:To slow down a reaction, you need to do the opposite. Factors that can affect rates of reactions include surface area, temperature, concentration, and the presence of catalysts and inhibitors. Temperature - Changing the temperature of a chemical reaction also affects the reaction rate.

Answer:

In driving, changes by fractions of a second in reaction time may mean the difference between a collision or the avoidance of one. On the road, distractions, speed, driving experience, and physical and cognitive fitness can seriously affect reaction times.

Explanation:

ig this

What is the acceleration of a 6.4 kilogram bowling ball if a force of 12 N is applied to it?

Answers

F=ma
12=6.4a
1.875=a
A=1.875

Answer:

1.875 m/sec2

Explanation:

Acceleration = Force/Mass

Acceleration = 12/6.4

12/6.4 = 1.875

Units = m/sec2

1875 m/sec2