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2 years ago

15

Is centimeters considered a type of surface area ???

1 answer:

DochEvi [55]2 years ago

5 0

Yeah, but you have to square it

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Can someone help me one these two

strojnjashka [21]

On the top problem: Angle A and Angle B are a right angle so it equals 90 degrees. If Angle B is 50 degrees that makes Angle A 40 degrees. Angle A and Angle C is a straight line and equals 180 degrees so if Angle A equals 40 degrees that means Angle C equals 140 degrees.

8 0

2 years ago

La escuela es tan dura

WINSTONCH [101]

Answer:

pi.

animo

Step-by-step explanation:

n antes antes afanan Nancy antes antes a

4 0

2 years ago

A car has mass 1500 kg and is traveling at a speed of 35 miles/hour. what is its kinetic energy in joules? (Be sure to convert m

photoshop1234 [79]

Answer:

Factor by which kinetic energy increase = 4 times

Step-by-step explanation:

Given,

Mass of the car, v1 = 1500 kg

initial speed of car = 35 miles/h

$=\dfrac{35\times 1609.34}{3600}\ m/s$

= 15.64 m/s

Initial kinetic energy of the car is given by,

$k_1\ =\ \dfrac{1}{2}.m.v_1^2$

$=\ \dfrac{1}{2}\times 1500\times (15.64)^2\ joule$

= 183606.46 J

Final velocity of car v2 = 70 miles/hour

$=\dfrac{70\times 1609.34}{3600}$

= 31.29 m/s

So, final kinetic energy of car is given by

$k_2\ =\ \dfrac{1}{2}.m.v_2^2$

$=\ \dfrac{1}{2}\times 1500\times (31.29)^2$

= 734425.84 J

Now, the ratio of final to initial kinetic energy can be given by,

$\dfrac{k_2}{k_1}=\ \dfrac{734425.84}{183606.46}$

$=>\ k_2\ =\ 4k_1$

Hence, the kinetic energy will increase by 4 times.

7 0

2 years ago

What is the solution to this equation?

zepelin [54]

Answer:

A -3

Step-by-step explanation:

-6 times -3 = Postive 18. then 18+3=21

:). Hope that helped

8 0

2 years ago

Read 2 more answers

Last week Sally had thirty-nine dollars. She washed cars over the weekend and now has sixty-four dollars. Write an equation that

mafiozo [28]

Answer:

64= 39+x

Step-by-step explanation:

x represents the unknown or in this case the money made to get to 64

39 is what she started with and 64 is the final total

4 0

2 years ago