Physics High School

IS IT right to the left a b c d

Answers

Answer 1

Answer:

c ok

Explanation: right?

Answer 2

Answer:

Explanation:

Related Questions

Rohit placed a pencil perpendicular to principal axis in front of a converging
mirror of focal length 30 cm. The image formed is twice the size of the pencil.
Calculate the distance of the object from the mirror.

Answers

Answer:

45 cm ( in my opinion)‍♀️

Explanation:

( Using the mirror formula)

1/ u + 1/v = 1/f

( introducing magnification; m into the formula )

u( 1/u + 1/v ) =u×1/f

1 + u/v =u/f

( But u/v =1 ÷v/u= 1/m)

1 +1/m =u/f

(Supposing m is actually equal to 2, and f =30 cm, then;)

1 + 1/2 =u/30

2+1= u/15

3=u/15

3×15=u

45 cm=u

In an inelastic collision, which of the following statements is always true?

[A] Kinetic energy is conserved in the collision.
[B] Momentum is conserved in the collision.
[C] After the collision, the objects always merge into one.
[D] The collision takes more that 1 second to complete.

Answers

Well C is definitely one of the correct answers.

Answer: A

Explanation:

A 1200 kg car accelerates from 13m/s to 17m/s. find the change in momentum of the car?

Answers

Answer:

4800

Explanation:

The change in velocity of the car is 17-13=4m/s. Since the change in momentum is the mass multiplied by the change in velocity, the answer is 4*1200=4800. Hope this helps!

The change in momentum will be "4800".

Given:

Mass,

m = 1200 kg

Change in velocity,

Δv = 17-13

= 4 m/s

Now,

The change in momentum is:

= [tex]Mass\times Change \ in \ velocity[/tex]

= [tex]1200\times 4[/tex]

= [tex]4800[/tex]

Thus the above answer is correct.

Learn more about momentum here:

https://brainly.com/question/8644950

10 pts!!!!!! please answer ASAP picture and inscription included

The wavelength of a wave is equal to the distance from one disturbance to
the next and is measured in meters. If the distance between two wave
crests is 2 m, what is the wavelength?

Answers

Answer:

Explanation: a crest is a disturbance

Answer:

I think its 4m, but don't quote me. hope I helped

Ski lift carry people along 150 m cable up the side of a mountain. Riders are lifted a total of 75 m in elevation. What is the ideal mechanical advantage of the ski lift?

Answers

Ideal Mechanical Advantage (IMA) can be found by using the formula:

IMA = ID/OD

ID = Input Distance

OD = Output Distance

In the question, we are given:

ID = 150

OD = 75

Now, solve the expression with what we have.

IMA = 150/75

IMA = 2

Therefore, the IMA is 2.

Best of Luck!

Need help on circuit question

Answers

Both would be my answer.

30
. Which of the following represents the
statement "The difference of two square
numbers is positive

Answers

Answer:

In mathematics, the difference of two squares is a squared (multiplied by itself) number subtracted from another squared number. Every difference of squares may be factored according to the identity. in elementary algebra.

Explanation:

Which statement is NOT an advantage of renewable resources? A They produce clean energy. B They are expensive to collect and transform into energy. C They are safe for the environment. D They replenish quickly.

Answers

Answer:

B. They are expensive to collect and transform into energy.

Explanation:

All of the other options are positive aspects of renewable resources. B is the only disadvantage of renewable resources given in the question.

Answer:

They are expensive to collect and transform into energy.

Explanation:

Edge

explain nuclear fusion briefly

Answers

Answer:

Nuclear fusion is the process in which two atomic nuclei are fused together into a larger single nucleus, releasing energy in the process. ... In proton-proton fusion, four hydrogen atoms are fused into a single helium-4 atom, releasing a lot of energy in the process.

Explanation:

Object A has a mass of 10 kg and is moving at a velocity of 2.0
m/s. So Object A's momentum is - kg. m/s.

Answers

Answer:20kgm/s

Explanation:

Mass=10kg

Velocity=2m/s

Momentum=mass x velocity

Momentum=10 x 2

Momentum=20

Momentum=20kgm/s

The object with mass m when moving with the velocity, its momentum can be calculated. The momentum of the object A is 20 kg.m/s.

What is momentum?

Momentum is the product of mass and velocity of a moving object.

If the momentum is p, the mass of the object is 10 kg and the velocity is 2.0 m/s, then the momentum will be

p = 10 × 2.0

p = 20 kg.m/s

Thus, the momentum of the object A is 20 kg.m/s

Learn more about momentum.

https://brainly.com/question/24030570

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