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2 years ago

A net force acting on a 5.0 kg box produces an acceleration of 4.2 m/s2. What

Mathematics

2 answers:

liq [111]2 years ago

6 0

Answer:

14 N

Step-by-step explanation:

Let the mass of the box be m.

F = ma → F = 5 x 4.2 = 21 N

When mass = 2.8 kg, let the acceleration is a. For same force:

=> 21 = a x 2.8

=> 21/2.8 = a

=> 7.5 m/s² = a

Mashcka [7]2 years ago

3 0

Answer:

7.5M/s^2

Step-by-step explanation:

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Daughter’s current age is 6 years which is 1/5 th of her mother’s age. After how many years mother’s age will be three times gre

kifflom [539]

Answer:

6 years

Step-by-step explanation:

6 = ⅕m

m = 30

"mother's age will be three times greater than daughter's age"—Not sure what "three times greater than" means. I will interpret it as: "mother's age will be three times daughter's age."

In x years, mother will be 30+x and the daughter will be 6+x.

30+x = 3(6+x) = 18+3x

12 = 2x

x = 6

In 6 years, the mother will be 36 and the daughter will be 12.

5 0

2 years ago

HURRY DUE IN 20 MINUTES Use the rules of exponents to simplify the expressions. Match the expression with its equivalent value.

Nitella [24]

Answer:

1 = A

2= D

3= B

4= C

4 0

3 years ago

Determine the principal value of the function: Arc sin(square root of 3/2)

Drupady [299]

Answer:

π/3

Step-by-step explanation:

We have to find the principal value of $\text{arc sin}(\frac{\sqrt{3}}{2} )$

arc sin means sin inverse. The sin inverse is a one to one function with its range between $-\frac{\pi}{2} \textrm{ to } \frac{\pi}{2}$

The principal value of the arc sin will lie within the above given range.

value of sin (60) or sin( $\frac{\pi}{3}$ ) is $\frac{\sqrt{3}}{2}$ .

$\frac{\pi}{3}$ lies between $-\frac{\pi}{2}\textrm{ and } \frac{\pi}{2}$

So, from here we can say that the Principal Value of Arc sin(square root of 3/2) is π/3

5 0

3 years ago

A pote that is 3.5 m tall casts a shadow that is 1.08 m long same time, a nearby building casts a shadow that is 35.5 m long How

meriva

Answer:

I ain't never seen 2 pretty bestfriends

Step-by-step explanation:

8 0

2 years ago

Harry ate 5/8 of a sandwich

11111nata11111 [884]

Well do you know a common factor between 8, 5, and 12, if so it is super simple to find your answer. :)

4 0

3 years ago

Read 2 more answers