9514 1404 393
Answer:
B. 470 miles
Step-by-step explanation:
Using numbers rounded to the nearest 10, the remaining distance is ...
1270 -420 -380 = 470 . . . . miles
The magnitude of the final velocity of the cue ball is (B) 0.56m/s.
<h3>
What is Velocity</h3>
- The definition of velocity is a vector measurement of the rate and direction of motion.
- It is a moving body's speed and direction of motion.
How to calculate the magnitude of the final velocity?
The magnitude of the final velocity can be calculated by following the steps:
- The mass of the cue ball given is 0.4kg.
- The velocity of the cue ball given is +0.80m/s.
- The velocity of the striped ball before the collision is +0.38 m/s.
- The velocity of the striped ball after collision is +0.62m/s.
- We need to find the magnitude of the final velocity of the cue ball.
Assuming all pool balls have the same mass: 0.4kg
Let the final velocity of the cue ball be x.
Now, To find the final velocity:
- Mass of the cue ball × initial velocity of cue ball + Mass of striped ball + initial velocity of striped ball = mass of cue ball × final velocity + mass of striped ball × final velocity of the striped ball
- (0.40)×(0.80)+(0.4)(0.38) = (0.4)(x)+(0.4)(0.62)
- 0.32+0.152=0.4x+0.248
- 0.472=0.4x+0.248
- 0.472-0.248= 0.4x
- 0.224/0.4 =x
- x = 0.56m/s
Therefore, the magnitude of the final velocity of the cue ball is (B) 0.56m/s.
Know more about velocity here:
brainly.com/question/25749514
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The correct question is given below:
In a game of pool, a 0.4 kg cue ball is traveling at +0.80 m/s when it hits a slower striped ball moving at +0.38 m/s. After the collision, the striped ball moves off at +0.62 m/s. What is the magnitude of the final velocity of the cue ball? Assume all pool balls have the same mass.
A. 0.20 m/s
B. 0.56 m/s
C. 1.0 m/s
D. 1.8 m/s
9514 1404 393
Answer:
7 times
Step-by-step explanation:
Each meal weighs (24 oz)/(16 oz/lb) = 1.5 lb. The number of meals to be delivered each day is ...
(34.5 lb/day)/(1.5 lb/meal) = 23 meals/day
If we assume that meals can remain in the car from one day to the next, we only need to compute the total number of loads in 4 days.
(23 meal/day)(4 days)/(15 meals/load) = 6 2/15 loads/4-days
That is loading the car 6 times is not enough. They need to load the car 7 times in 4 days.
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If we assume that meals cannot remain in the car from one day to the next, then the car must be loaded 2 times per day. That's 8 times in 4 days.
The answer depends on your assumptions about loading the car.
Answer: Ok.. i hope you do good on it then..
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INTRODUCING LAYS NEW BRAND
<span>24.54 cm ...............................</span>