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4 years ago

A force that keeps an object at a fixed angle 2 words?

1 answer:

8 0

<span>A force that keeps an object at a fixed angle is called centripetal force. Centripetal force refers to a movement of an object in a circular motion. The velocity of an object is changing in direction but the magnitude remains. The force of an object stays on the center; the velocity of an object depends on the mass of an object.
One example is swinging a rope. The velocity will depends on how heavy the object you will put on the end of the rope. The heavier the object the faster it will rotate.</span>

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A boat traveled 150 miles downstream (with the current) and back (against the current). The trip downstream took 10 hours. The t

Margarita [4]

Answer:

b= 10 miles/hr and c= 5 miles/hr

Step-by-step explanation:

Let it's downstream and upstream speed be d and u respectively

also speed of the boat be b and speed of stream be c.

as per question d = 150/10= 15 miles/hr

and, u= 150/30= 5 miles/hr

also we know d= b+c = 15.....i and u = b-c= 5....ii

solving i and ii we get b= 10 miles/hr and c= 5 miles/hr

3 0

3 years ago

In a study of 200 students under 25 years old, 20% have not yet learned to drive. How many students cannot drive? Show me your w

pshichka [43]

Answer: 200x.2=40

Step-by-step explanation:

200 students under 25

20%=.2

times each other make up 40 percent of the students don't know how to drive

5 0

3 years ago

NYS COMMON CORE MATHEMATICS CURRICULUM Lesson 17 Date Name Lesson 17 Solutions Eric's father works two part-time jobs, onc in th

Law Incorporation [45]

Answer:

Eric's father work 5 hours each afternoon

Step-by-step explanation:

Let x be the no. of hours Eric's father work each afternoon

He works for hours in morning each day = 3

He works for total hours in morning in 5 days= $3 \times 5 = 15$

He works for total hours in afternoon in 5 days=5x

We are given that he works a total of 40 hours each 5-day workweek.

ATQ

15+5x=40

5x=25

x=5

Hence Eric's father work 5 hours each afternoon

8 0

3 years ago

larisa86 [58]

Answer:

The correct answer is D, 0.20. You add the probabilities of either situation occurring and subtract the probability of both of them occurring.

Step-by-step explanation:

0.25 + 0.08 - 0.13 = 0.20

3 0

3 years ago

Read 2 more answers

P is the probability of a certain event. Which of the following indicates that P is certain to happen?

podryga [215]

Note for probability, if it will never happen the P = 0. If it must happen P = 1.

So certain to happen:

C. P=1

8 0

3 years ago

Read 2 more answers