3 years ago

Please help I will fail

Physics

1 answer:

Mandarinka [93]3 years ago

4 0

Answer:

6. A

7. C

8. B

9. The average speed is the distance (a scalar quantity) per time ratio. Speed is ignorant of direction. The average velocity is the displacement or position change (a vector quantity) per time ratio.

You might be interested in

during a journey, a car travels at 40 km in 2.5 hours, next 62 km in 3 hours, then took a break for 30 minutes, again travelled

wlad13 [49]

45mph is the answer if you do the math right

6 0

3 years ago

All fungi are

sertanlavr [38]

Answer:

multicellular

Explanation:

all fungi are multicellular

4 0

3 years ago

Read 2 more answers

an object is thrown with an initial horizontal velocity of 10 meters per second and take approximately 9 seconds to reach the gr

pantera1 [17]

The horizontal velocity was constant, so:

$s = vt$

$s = 10\cdot9$

$s = 90$

it traveled 90meters

6 0

3 years ago

Jonah is trying to move his 22-kg desk by pushing on it with a force of 130 N, but his brother is leaning on it with a downward

Dafna11 [192]

Answer:

0.54

Explanation:

Draw a free body diagram. There are 5 forces on the desk:

Weight force mg pulling down

Applied force 24 N pushing down

Normal force Fn pushing up

Applied force 130 N pushing right

Friction force Fnμ pushing left

Sum of the forces in the y direction:

∑F = ma

Fn − mg − 24 = 0

Fn = mg + 24

Fn = (22)(9.8) + 24

Fn = 240

Sum of the forces in the x direction:

∑F = ma

130 − Fnμ = 0

Fnμ = 130

μ = 130 / Fn

μ = 130 / 240

μ = 0.54

6 0

3 years ago

A book on a shelf 2.0 meters above the floor has a mass of 1.5 kilograms. What is the gravitational potential energy of the book

natta225 [31]

Answer:

29.4 J

Explanation:

PE= MGH

PE = 1.5 x 2x 9.8

4 0

3 years ago