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PilotLPTM [1.2K]
3 years ago
15

Ian throws a ball straight up into the air at a speed of 10 m/s. what is the ball's speed at the highest point?

Physics
1 answer:
olya-2409 [2.1K]3 years ago
6 0
The ball's speed would be 0 m/s at its highest point because it needs to come to a complete stop before changing directions and starting its down trip.
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A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.8 cm . its mass is 1.3 kg . calculate the density o
evablogger [386]
Density(rho) = m/v
(1.3)/((3.2)(17.1)(3.8))
since density is given in kg/m^3 you should convert the blocks dimensions to meters

1.3/(0.032*0.038*0.171)

plugging in these numbers would give you the density

1.3/0.000208
6250
with sigfigs= 6300kg/m^3
6 0
3 years ago
A truck accelerates from a stop to 27m/sec in 9 minutes. What was the trucks acceleration?
stepan [7]
Vi = 0 m/s
Vf = 27 m/s
t = 9 min = 540 s
1 min = 60 s
9 min = 540 s
a = ? m/s^2.

vf = vi + at
27 = 0 + 540a
27 = 540a
27/540 = 540a/540
27/540 = a
0.05 = a.

The truck's acceleration was 0.05 m/s^2.
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3 years ago
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marishachu [46]
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3 0
2 years ago
What does it mean when work is positive? Velocity is greater than kinetic energy. Kinetic energy is greater than velocity. The e
Andre45 [30]

Work is said to be positive when Kinetic energy is greater than velocity (option B). Details about work can be found below.

<h3>What is work?</h3>

Work is a measure of energy expended in moving an object; most commonly, force times distance. This means that no work is done if the object does not move.

However, work can either positive or negative depending on the direction of the object and the force applied.

When force and displacement are in the same direction, the work performed on an object is said to be positive work.

This further means that the kinetic energy, which is the energy due to motion, will be greater than the velocity of the object in order to overcome the object.

Therefore, work is said to be positive when kinetic energy is greater than velocity.

Learn more about work at: brainly.com/question/18094932

#SPJ1

8 0
2 years ago
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KengaRu [80]

Answer:

All of the above

Explanation:

The steps that should be taken for rating the results is as follows

1. Pin location checking

2. Offical website checking for the address purpose

3. The checking should be done for the closer results in the case of non-returning

Therefore all of the above steps are required and taken for rating the results

Hence, the same is to be considered

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