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Wittaler [7]
3 years ago
5

What is the kinetic energy of a 50-kg child running to catch the school bus at

Physics
2 answers:
Vinvika [58]3 years ago
6 0

Answer:

Option C

100 J

Explanation:

Kinetic energy, KE is given by

KE=0.5mv^{2} where m is the mass and v is the velocity

Substituting 50 Kg for mass, m and 2 m/s for velocity v then we obtain

KE=0.5*50*2^{2}=100 J

Therefore, the child's kinetic energy is equivalent to 100 J

Zepler [3.9K]3 years ago
5 0

Answer:100J

Explanation:

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in a young's double-slit experiment the center of a bright fringe occurs wherever waves from the slits differ in the distance th
blagie [28]

Answer:

Zero

Explanation:

Because using

Deta X= dsinစ x n(lambda)

But we know that for central maxima

n is zero

So after substituting

Deta x = 0

3 0
3 years ago
Solving:
STatiana [176]

Answer:

1. 31,536,000 seconds

2. Car B traveled a longer distance

3. Volume of box = 0.235887 cubic meters

Explanation:

Q1. Age in seconds

1 year = 365 days
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds

Therefore 1 year = 365 x 24 x 60 x 60 = 31,536,000 seconds

In scientific notation this would be 3.1536\times  10^7 \text{ seconds}

Q2. Comparing km and miles

Given:
1 km = 1000m and 1 m = 3.3ft,   I km = 1000 x 3.3 = 3300 ft.

Convert Car A distance of 25.7km to feet :
25.7 km. = 25. 7 x 3300 ft. = 84,810 ft.

For Car B  that traveled 20 miles,
20 miles = 20 x 5280 = 105,600 ft.

Since 105,600 > 84,810, car B traveled a longer distance

Q3. Volume of wooden box

The wooden box is in the shape of a rectangular prism
It volume is L x W x H
Volume = 1.525 x 0.30 x 0.5156 = 0.235887 cubic meters

5 0
1 year ago
Plz help will mark the brainliest​
fenix001 [56]

Answer:

yesssssssssssssssssssssssssssssssssssss

3 0
3 years ago
Read 2 more answers
NEED Answers ASAP!!!!!
Maslowich

The force on the truck is F=13650  N

<u>Explanation:</u>

Solving the problem

Given data,

M= 1500 kg

A= 9.1 m/s

We have the formula,

F= M×A

F= 1500 × 9.1

F=13650  N

The Force on the truck is F=13650  N

6 0
3 years ago
Determine Force. 589J of work was accomplished over a distance of 1100m, how much force was exerted? Include the correct units.
LiRa [457]

Answer:

Explanation:

Given:

A = 589 J

D = 1 100 m

____________

F - ?

A = F·D

F = A / D = 589 / 1100 ≈ 0.54 N

5 0
1 year ago
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