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g100num [7]
3 years ago
8

A 50kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2 seconds until the mass reaches

a velocity of 3m/s. What was the force acting on the mass?​
Physics
1 answer:
Marina CMI [18]3 years ago
3 0

Answer:

75N

Explanation:

a = v/t = 3/2

F = ma = 50(3/2) = 75

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Please answer ASAP!!
ch4aika [34]

Answer:

O So you can ask questions about steps you do not understand.

Explanation:

One of the reasons why it is encouraged that the laboratory procedure must be read at the beginning of any type of experiment is familiarize the student with the experimental procedure. Also, questions that can help make the smooth running of the experiment to proceed can be cleared.

  • It is to this regard that understanding laboratory procedures is very vital.
  • Students must grasp the details of each steps of the experiment before proceeding with their investigation.
  • Other critical information needed to set up the experiment can also be brought into the lime light.
3 0
3 years ago
The average human has a density of 945 kg/m3 after inhaling and 1020 kg/m3 after exhaling. (a) Without making any swimming movem
Gala2k [10]

Answer:

20% of the human body float above the surface in the dead sea.

Explanation:

Given data,

The human density after inhaling, d₁ = 945 kg/m³

The human density after exhaling, d₂ = 1020 kg/m³

Therefore the average human density, d = 982.5 kg/m³

The density of the dead sea, D = 1230 kg/m³

The percentage of density of human body to the dead sea is,

                                   P % = (982.5 / 1230) x 100 %

                                           = 80 %

Therefore, the human body has 80% of dead sea density.

Hence, 20% of the human body float above the surface in the dead sea.

8 0
4 years ago
During heavy rain, a section of a mountainside measuring 2.3 km horizontally (perpendicular to the slope), 0.75 km up along the
Jobisdone [24]

Answer:

93328 kg

Explanation:

\rho = Density of mud = 1900 kg/m³

Volume of the cuboid is given by

V=2300\times 750\times 1.4\\\Rightarrow V=2415000\ m^3

Volume is also given by

V=Al\\\Rightarrow l=\dfrac{V}{A}\\\Rightarrow l=\dfrac{2415000}{520\times 520}\\\Rightarrow l=8.9312\ m

The length of the cuboid is 0.89312 m

For the small volume

V_a=al\\\Rightarrow V_a=5.5\times 8.9312\\\Rightarrow V_a=49.12\ m^3

Mass is given by

m=\rho V_a\\\Rightarrow m=1900\times 49.12\\\Rightarrow m=93328\ kg

The mass of the mud is 93328 kg

6 0
3 years ago
Sometimes when you are training for event you may notice a decrease in improvement in level out of performance true or false
blagie [28]
<span>Sometimes when you are training for event you may notice a decrease in improvement in level out of performance. T</span>rue 

3 0
4 years ago
Read 2 more answers
Plz help me with this activity :(
Marrrta [24]
As mass increases, the potential energy also increases, I hope that helped :)

8 0
3 years ago
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