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seraphim [82]
3 years ago
10

Calculate the speed of a bus that travels a distance of 55 miles in 0.75 hours.

Physics
2 answers:
hjlf3 years ago
8 0
Is it 73.3? Ain’t sure
sergiy2304 [10]3 years ago
7 0

Answer:

speed = 73.3333 miles per hour

= 73.3333 mi/h

Explanation:

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dimaraw [331]

Answer:6.2

Explanation:

3 0
2 years ago
Sort these statements about machines based on whether they are correct or incorrect.
insens350 [35]

as well.

1. Correct

Explanation

An inclined plane is a flat  surface which lie at an angle, Its one end is higher than the other this inclined plane is used as an aid for raising or lowering a load. Staircase also work in similar manner

2. Correct

Explanation

yes all simple machine have a fulcrum

3. Incorrect

Explanation

when we swim that time our arms and legs 'push' the water due to which water displaced in backward direction so her we applied a positive work on the water. According to Newton's Third Law,same magnitude of work is done by water in opposite direction to push us back on our arms and legs. therefore water also does positive work on us.

4. incorrect

Explanation

The force exerted by a machine on an object is input force

5.  Incorrect

Explanation

when the input force is greater than the output force that time machine have mechanical advantage of less than 1.


8 0
2 years ago
Read 2 more answers
As the train in the image moves to the right how does the train horn sound to person a?
alina1380 [7]

Answer:

Explanation:

Person A's velocity relative to the train is 0.  Therefore, the pitch of the horn will not change.

3 0
2 years ago
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To test the quality of a tennis ball, you drop it onto a floor from a height of 4.00m . It rebounds to a height of 2.00 m. If th
Agata [3.3K]
In this problem, we apply the equation regarding  kinematics  expressed as  vf^2 = v0^2 + 2as  vf eventually becomes zero because the ball stops in the end. a = -9.8 m/s2s = 2 metres this time 
This gives initial velocity, vo equal to 6.26m/s 
now 6.26-(-8.85) = 15.11m/s 

change in velocity/change in time = average acceleration 15.11/(12/1000) = 1259.167 m/s^2
3 0
2 years ago
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Assume the objects listed below have the same velocity. Which object has the most kinetic energy? a bus a car a plane a bicycle
DaniilM [7]

A sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°C. If the system is at dynamic equilibrium, which of these statements is true?  


4 0
3 years ago
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