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3 years ago

WILL MARK BRAINLIEST FOR CORRCET ANSWER!!!!!!!!!

Physics

2 answers:

jenyasd209 [6]3 years ago

8 0

Answer:

It’s C

Explanation:

qaws [65]3 years ago

5 0

Answer:

its the area method

Explanation:

i did it on edge nuity and i got it correct.

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Which of the following is not a synthesis reaction?

Nastasia [14]

C is the awnser because c is single replacement

6 0

3 years ago

The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of

motikmotik

Explanation:

It is given that, the force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed such that,

$F\propto \dfrac{mgv^2}{r}$

$F=\dfrac{kmgv^2}{r}$

mg is the weight of the car

r is the radius of the curve

v is the speed of the car

Case 1.

F = 640 pounds

Weight of the car, W = mg = 2600 pound

Radius of the curve, r = 650 ft

Speed of the car, v = 40 mph

$640=\dfrac{k(2600)(40)^2}{650}$

k = 0.1

Case 2.

Radius of the curve, r = 750 ft

Speed of the car, v = 30 mph

$F=\dfrac{0.1\times 2600\times (30)^2}{750}$

F = 312 N

Hence, this is the required solution.

6 0

3 years ago

How do your shoe laces relate to a pulley

Margarita [4]

The grommets on your shoe (Holes through which you place the lace) act as the pulley. When you tighten at the top it restricts at the bottom and compresses around your foot.

The same can be applied to a pulley; If you have the proper set up Pulling one string causes two actions; the first being the most obvious. And the second being its effect. The Grommets of your shoe are the pulley's; while your Shoelaces are just the rope with which you operate the pulley.

8 0

3 years ago

What is the specific definition of energy that relates it to work?

Crazy boy [7]

A b c d e f g h i j k l m

5 0

3 years ago

Calculate how much calories you have if you have 8 joule ? please:

goblinko [34]

Answer:

If you have 8 Joules of energy that means you have 1.912 calories.

Explanation:

As we know that one calorie is equal to 4.184 J. We need to calculate in 8 Joules of energy how many calories are present.

We know that,

For 1 calorie = 4.184 J

For ? = 8 Joules

To obtain calories in 8 Joules. Divide 8 by 4.184.

$\text { Calorie }=\frac{\text { Joule }}{4.184}$

$\text { calorie }=\frac{8}{4.184}$

calorie=1.912

Therefore, 8 J = 1.912 calorie.

5 0

3 years ago