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Allisa [31]
2 years ago
5

A student on roller skates glides across a floor with a lunch tray. Total mass is 1.3 kg at waist level 1.1m above the floor fro

m the cash register to her table 23.4 m away how much work is done
Physics
1 answer:
Anna71 [15]2 years ago
8 0

Answer:

22.3 work is left to be done

2.4 work are done

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a car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 6 seconds what is its acceleration?
Irina18 [472]
We can solve for the acceleration by using a kinematic equation. First we should identify what we know so we can choose the  correct equation.

We are given an original velocity of 24 m/s, a final velocity of 0 m/s, and a time  of 6 s. We and looking for acceleration (a) in m/s^2.

The following equation has everything we need:

v_f=v_i + at

So plug in the known values and solve for a:

0 = 24 + 6a

-24 = 6a

a = -4 m/s^2
8 0
4 years ago
24- Which of the fallowing devices make use a lens
mezya [45]

Answer:

d.

Explanation:

all because the projector is a lens and the magnifying also the microscope

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3 years ago
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State the prevost's theory of heat exchange​
dezoksy [38]

Answer:

Prevost's theory of exchanges stated that each body radiates to, and receives radiation from, other bodies. ... Prevost went on to comment that "The heat of several portions of space at the same temperature, and next to one another, is at the same time in the two species of equilibrium."

Explanation:

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3 years ago
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Do wave properties affect wave speed
yawa3891 [41]

Answer:

Nope!

Explanation:

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HOPE IT HELPS :)

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5 0
3 years ago
568 muons were counted by a detector on the top of Mount Washington in a one hour period of time. Assuming moving muons keep tim
AlladinOne [14]
The answer to this question is:

C-"That moving clocks run slower"

Your Welcome :)
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