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ra1l [238]
3 years ago
6

An object's velocity can be described by its speed and acceleration. (4 points) True False

Physics
1 answer:
prohojiy [21]3 years ago
8 0

False

Hope this helps

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6. A car drives 750 miles in 10 hours. Calculate the speed of the truck<br><br><br> .
Dmitriy789 [7]

Answer:

75 miles an hour

I hope this is correct and helps

3 0
3 years ago
Ultrasound is used to scan the unborn baby of a pregnant mother.
hram777 [196]
Explanation:

Echo method formula for speed of sound : 2 x distance / time taken

2 x distance / 58 = 1540 m/s
2 x distance = 1540 m/s / 58 s
= 26.55172414 m
Distance = 26.55172414 / 2
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4 0
2 years ago
I need to know what a-e is. Please and thank you!
beks73 [17]
The different types of energy transfers are convection, conduction, and radiation. 
I'm not too sure on the second one but thermodynamics relates thermal energy, kinetic energy, and potential energy. I'm basing this on the formulas of the laws of thermodynamics, but it could also be temperature, heat, or work.
6 0
3 years ago
If an object floats, the volume of the displaced water is equal to the volume of the portion of the object that's above the surf
diamong [38]

Answer:

FALSE

Explanation:

When object float in water then it means that weight of the object is counterbalanced by the buoyancy force.

Here as we know that buoyancy force is the weight of water displaced by the object.

So here when object is submerged into the water then the submerged part of the volume of object will displace exactly the same volume of water and that volume of water will exert upwards buoyancy force on the object.

So here this statement is not true as it says that volume of water displaced is volume above the surface of water while it must be like volume of water displaced must be equal to volume of submerged part of the object.

4 0
3 years ago
Read 2 more answers
• (-/1 Points) DETAILS OSCOLPHYS2016 9.5.WA.040.
Tanya [424]

The force that must be exerted on the outside wheel to lift the anchor at constant speed is 6.925 x 10⁵ N.

<h3>Force exerted outside the wheel</h3>

The force exerted on the outside of the wheel can be determined by applying the principle of conservation of angular momentum as shown below.

∑τ = 0

  • Let the distance traveled by the load = 1.5 m
  • Let the radius of the wheel or position of the force = 0.45 m

∑τ = R(mg) - r(F)

rF = R(mg)

0.45F = 1.5(21,200 x 9.8)

F = 6.925 x 10⁵ N.

Thus, the force that must be exerted on the outside wheel to lift the anchor at constant speed is 6.925 x 10⁵ N.

Learn more about angular momentum here: brainly.com/question/7538238

6 0
3 years ago
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