Ask question

Ask question

All categories

3 years ago

8

For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 21 N acts on

a certain object, the acceleration
of the object is 7 mis. f the acceleration of the object becomes 2 m/s?, what is the force?

1 answer:

boyakko [2]3 years ago

6 0

Answer: i think its 65n

Step-by-step explanation:

You might be interested in

A train track through a mountain is 1600 feet long and makes an angle of 1.6 with the horizontal. What is the change in elevatio

Anna71 [15]

Step-by-step explanation:

law of sine :

a/sinA = b/sinB = c/sinC

with the sides and correlating angles being always opposite to each other.

we are dealing with a right-angled triangle here.

the train track is the Hypotenuse (the side opposite of the 90° angle) : 1600 ft.

the horizontal level "connection" from beginning to the end of the track is one leg, and the elevation difference at the end of the track is the second leg.

the 2 legs enclose a 90° angle, as the elevation goes straight up from the horizontal level.

so, we have

1600/sin(90) = elevation difference / sin(1.6)

sin(90) = 1

1600 = elevation difference / sin(1.6)

elevation difference = 1600 × sin(1.6) =

= 1600 × 0.027921639... =

= 44.67462196... ft

≈ 44.7 ft

3 0

2 years ago

If your starting salary were $50,000 and you received a 4% increase at the end of every year for 15 years, what would be the tot

ycow [4]

<u>Answer-</u>

<em>The total amount you would have earned over the first 16 years is </em><em>$90047.20</em>

<u>Solution-</u>

The exponential function that would given the growth is,

$P'=P(1+r)^t$

Where,

P' = Future value,

P = Current value = $50000

r = rate of change = 4% = 0.04

t = time = 15 year (not 16 because the the increment occurs at year end and we want to get the value at the beginning of 16th year)

Putting the values,

$P'=50000(1+0.04)^{15}$

$=50000(1.04)^{15}$

$=90047.20$

Therefore, the total amount you would have earned over the first 16 years is $90047.20

6 0

3 years ago

Read 2 more answers

Katie said, "Negative numbers are integers". What was her error?

Sunny_sXe [5.5K]

Negative numbers are integers.The set of integers include negative numbers, positive numbers, and zero

6 0

3 years ago

Expand and simpifly 2(x+7) + 3(x+1)

MaRussiya [10]

Answer: 5x+17

Step-by-step explanation:

2(x+7) + 3(x+1)

2x+14 + 3x+3

5x+17

6 0

2 years ago

Read 2 more answers

Help ASAP math homework no spam links or i will report

max2010maxim [7]

Answer:

$x = \frac{19-2y}{3}$

$y=-\frac{3x+19}{2}$

Step-by-step explanation:

4x + y = 22

y = x - 3

4x + y + y = 22 + x - 3

4x + 2y = 19 + x

4x - x + 2y = 19 + x - x

3x + 2y ÷ 3 = 19 ÷ 3

$x = \frac{19-2y}{3}$

$y=-\frac{3x+19}{2}$

3 0

2 years ago

Read 2 more answers