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Troyanec [42]
3 years ago
5

What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?

Physics
1 answer:
vaieri [72.5K]3 years ago
5 0

Answer:

3000J

Explanation:

The gravitational energy for any object is given by E=mgh

where m is mass, g is gravitational field strength anf h is height above ground

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D) A tank with dimensions: 3m x 2m x 2m contains water upto its half
lorasvet [3.4K]

Answer:

P = 9800 [Pa]

Explanation:

In order to calculate the pressure at the bottom, we must use the following formula.

P = Ro*g*h

where:

P = pressure [Pa] (units of pascals)

Ro = density of the water = 1000 [kg/m³]

g = gravity acceleration = 9.8 [m/s²]

h = height = 1 [m] (because its half of the portion, the full height is 2 m)

P = 1000*9.8*1

P = 9800 [Pa]

5 0
3 years ago
1. You have a 400 kg car traveling at 15 m/s. It takes 6 seconds to come to a complete stop when it hits a wall. How much force
Illusion [34]

Answer:

sorry k wish I could've helped you

3 0
3 years ago
An external force of 5N is applied to a go-kart that is opposite it’s direction of travel for 5 seconds. What is the resulting m
Greeley [361]

Answer:

25N.s=25kgm/s

Explanation:

The resulting momentum in this case is equal to the impulse created by the force 5N during 5 seconds

ΔP=Force.time=F.t

    = 5x5=25kgm/s

5 0
3 years ago
What is the relationship between height and gravitational potential energy of water behind a dam?
Andrews [41]

Answer:

3. h^2

Explanation:

Energy of volume contained in a dam is given by

E=\dfrac{1}{2}A\rho gh^2

where,

A = Horizontal surface area of the barrage

\rho = Density of water

g = Acceleration due to gravity = 9.81 m/s²

h =  Vertical tidal range,

It can be seen that

E\propto h^2

Hence, the energy is proportional to h^2

7 0
3 years ago
A forest ranger might be ranked as being high in what type of intelligence?
Drupady [299]
<h2>Answer:</h2>

<u>A forest ranger might be ranked as being high in </u><u>Naturalistic</u><u> intelligence.</u>

<h2>Explanation:</h2>

Naturalistic intelligence is the type of intelligence that relates the activities of people that how sensitive an individual is to nature and the world. Zookeepers, biologists, gardeners, and veterinarians are among those people who have a higher capability of having high naturalist intelligence. Similarly a ranger who is fighting in forests must also be kept in the same category and he might be ranked as being high in the field of Naturalistic Intelligence.

7 0
3 years ago
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