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lapo4ka [179]
3 years ago
5

Why does earth exert the same impulse during the two time intervals in problem 10 but different impulses during the same distanc

es traveled in problem 11
Physics
1 answer:
Gekata [30.6K]3 years ago
6 0

The possible cause of difference in impulse is the change in momentum of the objects in the two problems.

<h3>What is impulse?</h3>

Impulse is effect produced by applied forces. Impulse is the product of force and time of action.

J = Ft

<h3>Change in momentum</h3>

Impulse is the change in momentum of an object.

J = ΔP

where;

ΔP is change in momentum

Thus, the possible cause of difference in impulse is the change in momentum of the objects in the two problems.

Learn more about impulse here: brainly.com/question/25700778

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What happens if the breakdown voltage is exceeded.
s2008m [1.1K]

Answer:

this may help

Explanation:

maybe it will cause the eletric cause a fire that will mean it will spread till the fire men should come

7 0
3 years ago
The wasted energy in processing food is “lost” to ____.
storchak [24]
I think its maybe light energy
8 0
3 years ago
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Which of the following has the lowest U value?
jarptica [38.1K]

Answer:

c. expanded polyurethane

Explanation:

Thermal performance of a building fabric is measured in terms of heat loss and is expressed as U-value or R-value. U-value is the rate of heat transferred through a structure divided by the difference in temperature across the structure with a unit of measurement of W/m²K.You can calculate the U-value of a by getting the reciprocal of the sum of thermal resistances , R, making the building material.

If you have the value of R, then U=1/R

Material                         size            R                      U

plywood                          1"              1.25                0.8

Poured concrete            2"              0.99               1.010

Expanded polyurethane  1"            6.5                   0.1538

Asbestos shingles            1"             0.03                33.33

The material with lowest U-value is expanded polyurethane

4 0
3 years ago
The air in a 22C room contains water at a partial pressure of 14 mm Hg. What is the relative humidity?
Naily [24]

Answer:

70.35%

Explanation:

The relative humidity is a percentage and is the ratio between the partial pressure of water and the vapor pressure of water times 100% The partial pressure gives you an idea of the amount of water in the air whereas the vapor pressure is related with the maximum amount of water that can be in the air for a given temperature.

Vp(h2o) -> Vapor pressure of water

p(h2o) -> Partial pressure of water

RH -> Relative humidity

Vp(h20) at 22°C = e^(20.386 - (5132 / (temperature + 273)) = 19.9 Torr

(1 Torr == 1 mm Hg)

RH = p(h2o)/Vp(h2o)*100% = (14/19.9)*100% = 70.35%

Note: The formula used to find the vapor pressure of water is an approximation, to get a better value you could use a table to determine the vapor pressure of water at a certain temperature. Remember that Vp(h2o) is a constant for a given temperature.

8 0
3 years ago
Describe what happens when your circuit is completed. Tap on one of the wires with your mouse. Describe what happens. Explain yo
klemol [59]

Answer: when a circuit is completed (it allows the flow of electrons which causes the light bulb to produce light).

Explanation:

A circuit is described as an electrical setup that is consists of a light bulb, a switch, a wire, a battery which is arranged to allow the flow of electric current. The major components of the electrical circuit includes:

--> The BATTERY which is the source of voltage to the circuit,

--> the WIRE which is the conductive path,

--> the LIGHT BULB which is the load that needs electrical power to operate and

--> the SWITCH which is the controller.

When a circuit is COMPLETED when electrons can flow from one end of a battery all the way around, through the wires, to the other end of the battery. Along its way, it will carry electrons to electrical objects that are connected to it like the light bulb and make it to produce light.

There are different types of electric circuit which are designed to create a conductive path of current or electricity. They include:

--> closed circuit

--> open circuit

--> short circuit

--> parallel circuit

--> series circuit.

6 0
3 years ago
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