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timofeeve [1]
3 years ago
14

Which type of lever is steep road​

Physics
1 answer:
Anni [7]3 years ago
3 0

Answer:

Third class lever

Explanation:

Third class lever

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Calculate the momentum of a 2500kg car with a velocity of 20 m/s​
Sedaia [141]

Answer:

50000 kg.m/s

Explanation:

p = mv

p = 2500 × 20

p = 50000 kg. m/s

6 0
4 years ago
How long would it take you too run the 100m sprint if from rest you accelerate at 2m/s/s for the whole race?
fredd [130]

Answer:

10 s

Explanation:

Given:

Δx = 100 m

v₀ = 0 m/s

a = 2 m/s²

Find: t

Δx = v₀ t + ½ at²

100 m = (0 m/s) t + ½ (2 m/s²) t²

t = 10 s

4 0
3 years ago
Why is copper a pure substance? A. Because it is an element B. Because it is a compound C. Because it is a homogenous mixture​
expeople1 [14]
A) because it is an element.
Explanation: usually when they say pure substance they mean pure element.
Hope this helped!! :)
3 0
3 years ago
A bus is traveling 25.0 km in 2 hours. What is the speed of the bus in millimeters per second?
trasher [3.6K]

Answer:

3472.222

Explanation:

In one hour, the bus travels at a 12.5 km. The speed is 12.5km/hr

Convert it to mm/s

And you get 3472.2mm/s

8 0
3 years ago
What are the four types of musical instruments and what are the physical behind each type of musical instrument
pishuonlain [190]

Answer:

The four types of musical instruments are percussion, woodwind, brass, and strings.

Explanation:

Percussion instruments include drums, triangle, cymbals, and xylophones. There are more instruments than what i've mentioned though. Percussion instruments often produce the beat of songs.

Woodwind instruments include clarinets, oboe, flute, and saxophone. Woodwind instruments often produce the harmony of songs and, occasionally, the melody.

Brass instruments include trumpet, trombone, french horn, and tuba. Brass instruments often produce the harmony of songs, the trumpet produces the melody a lot though.

String instruments include guitars, violins, cello, bass, ukulele, and banjo. String instruments produce both the harmony and the melody. These instruments often produce really beautiful music, in my opinion.

8 0
3 years ago
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