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2 years ago

Which statement describes the law of conservation of energy

Physics

1 answer:

DanielleElmas [232]2 years ago

4 0

Answer:

law of action and riactiond

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Two forces 6.0 N and 10.0 N act on an object at the same time.

sukhopar [10]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The Correct choice is ~

D. 18.0 Newtons

because the resultant force can't exceed 16 Newtons ~

6 0

3 years ago

A small sandbag is dropped from rest from a hovering hot-air balloon. (assume the positive direction is upward.) (a) after 1.5 s

marishachu [46]

solution:

We know v0 = 0, a = 9.8, t = 4.0. We need to solve for v

so,

we use the equation:

v = v0 + at

v = 0 + 9.8*4.0

v = 39.2 m/s

Now we just need to solve for d, so we use the equation:

d = v0t + 1/2*a*t^2

d = 0*4.0 + 1/2*9.8*4.0^2

d = 78.4 m

3 0

3 years ago

si tienes 2 circuitos uno en serie y otro en paralelo con el mismo valor en sus resistencias, para cuál circuito la resistencia

Novosadov [1.4K]

Answer:

circuito paralelo

Explanation:

Siempre el circuito en paralelo dara una resistencia menor. Recuerda que las resistencias se suman en el circuito en serie, an cambio en el circuito en paralelo, la corriente se bifurca de manera de circular con mayor intensidad por las ramas que tengan menos resistencia, y tal situacion llevara siempre a producir una menor resistencia equivalente.

5 0

3 years ago

An object is dropped from an airplane and takes 72 seconds to hit the ground. What is the magnitude of its VF Y ?

Dafna1 [17]

The final vertical velocity of the object is 705.6 m

Explanation:

Here we have to analyze the vertical motion of the object, which is a free fall motion, with constant acceleration of

$g=9.8 m/s^2$

towards the ground due to gravity.

Therefore, we can use the following suvat equation:

$v=u+at$

where

v is the final vertical velocity

u is the initial vertical velocity

$a=g$ is the acceleration

t is the time

Since the object is dropped,

u = 0

Therefore, the magnitude of the vertical velocity of the object after t = 72 seconds is:

$v=0+(9.8)(72)=705.6 m/s$

Learn more about free fall:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

3 0

3 years ago

Help Me Fast Please!!

rusak2 [61]

Answer:

There is only a beat frequency when the frequency heard (perhaps a tuning fork) is different from the frequency from the object in question (piano string, etc.).

The beat frequency equals the difference of the frequencies of the sources.

5 0

3 years ago