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Elodia [21]
3 years ago
10

one car travels due east at 40 km/hr and a second car travels north at 40km/hr. Are their velocities equal?​

Physics
1 answer:
Mariulka [41]3 years ago
7 0

Answer:

No.

Explanation:

Velocity is a vector quantity which means that it has a certain direction so things that move in different directions DO NOT have the same velocity.

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Geologists apply various methods to study the layers of the Earth. Which of the following is NOT a method used to study the Eart
77julia77 [94]

Answer:

A. Scientists use seismic computer models to measure the atmospheric conditions above the Earth's crust

Explanation:

why would use atmosphere to study the layers of earth? dont think thats possible

8 0
3 years ago
If an object accelerates from rest, with a constant acceleration of 5.4 m/s2, what will its velocity be after 28s?
aleksklad [387]
Vf = Vi + at
Vf = 0 + 5.4•28
= 151.2m/s..
not sure if its right
6 0
3 years ago
What is the speed of a rocket that travels 9,000 meters in 12 seconds?
Mademuasel [1]
9,000/12=750

Speed is equal to distance divided by time
7 0
3 years ago
Read 2 more answers
(I) A car slows down from 28 m????s to rest in a distance of 88 m. What was its acceleration, assumed constant?
Nataly [62]

Answer:

The  value is  a = -  4.45 m/s^2

Explanation:

From the question we are told that  

       The  initial speed is  u  =  28 \  m/s at a distance of  s_1  =  0 \ m

        The  final speed is  v  =  0 \  m/s    at a distance of  s_2 =  88 \  m

Generally  from the  kinematic equation we have that

       v^2  =  u^2  +2as

=>   a = \frac{v^2  -  u^2  }{ 2(s_2  -  s_1 )}

=>  a = \frac{0 -  28^2  }{ 2(88  -  0 )}

=>   a = -  4.45 m/s^2

The negative sign shows that it is decelerating

6 0
4 years ago
true or false when taking a handoff you need to make sure you you reach out with your hands and grab the ball ​
astra-53 [7]

Answer:

i think False

Explanation:

8 0
3 years ago
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