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3 years ago

Question is in the picture :,)

Physics

1 answer:

xenn [34]3 years ago

5 0

Answer:

Explanation:

When the dwarf planet in the Kuiper belt was discovered, scientists demoted pluto to "dwarf planet" because it was very similar to the other dwarf

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Which of the following stars is likely to be the coldest? Select one: a. The white-colored star b. The orange-colored star c. Th

worty [1.4K]

The White colored star is likely to be the coldest

6 0

2 years ago

Read 2 more answers

How do you find input energy with only the efficiency and output energy given?

iris [78.8K]

Answer:

power output/transformer efficiency multiply by 100%

Explanation:

derrive the formula from efficiency=power output/power input multiply by 100%

8 0

3 years ago

You run completely around a 400m track in 80s. What was your average velocity?

dalvyx [7]

Answer:

V=?

S=400m

t=80s

V=S/t

V=400/80

V=5m/sec

6 0

3 years ago

A 0.54 kg particle has a speed of 5.0 m/s at point A and kinetic energy of 7.5 J at point B. What is

Wewaii [24]

Answers

(a) 6.75 Joules.

(b) 5.27 m/s

Explanation

Kinetic energy is the energy possessed by a body in motion.

(a) its kinetic energy at A?

K.E = 1/2 mv²

= 1/2 × 0.54 × 5²

= 6.75 Joules.

(b) its speed at point B?

K.E = 1/2 mv²

7.5 = 1/2 × 0.54 × V²

V² = 7.5 ÷ 0.27

= 27.77778

V = √27.77778

= 5.27 m/s

Work done = 7.5 - 6.75

= 0.75 Joules

4 0

3 years ago

What makes speed, velocity, acceleration, distance, and time different?

LekaFEV [45]

Explanation:

Speed is the rate of change of distance with time.

Speed = $\frac{distance}{time}$

Velocity is given as the displacement per unit of time:

Velocity = $\frac{displacement}{time}$

Speed and velocity are similar but speed is a scalar quantity while velocity is a vector quantity. Speed has magnitude but does not point towards a specific direction. Velocity shows both magnitude and direction and it is a vector quantity.

Acceleration is given as the change in velocity with time. It is a vector quantity:

Acceleration = $\frac{change in velocity}{time}$

Distance is how far a body moves. It is scalar quantity.
Time is the duration of an event. It is a scalar quantity.

Learn more:

Vector calculation brainly.com/question/2678571

#learnwithBrainly

8 0

3 years ago