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3 years ago

9

If a person pushes a box up a ramp, in which direction will the box exert a force on the person? up the ramp toward the person d

own on the ramp

2 answers:

Dmitrij [34]3 years ago

6 0

The box would go toward the person

EleoNora [17]3 years ago

4 0

Down the ramp toward the person

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The acceleration of The Munster’s car is 9.71 m/s2 when he applies 5050 N of net force (by way of the engine). What is the mass

Ainat [17]

Given that,

Acceleration, a = 9.71 m/s²

Force, F = 5050 N

mass, m = ?

Since, we know that

F=ma

m= F/a

m= 5050/9.71

m= 520.08 kg

The mass of hi car is 520.08 kilograms.

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3 years ago

Describe the contributions of Mathieu Orfila and Robert Christison to the field of toxicology

riadik2000 [5.3K]

Answer:

They developed a test for poisons in the human tissues

Explanation:

Around the 19th century, Mathieu Orfila and Robert Christison developed important tests that identified poisons in human tissues.

By so doing, they laid the foundation for what is now called forensic toxicology. This science attempts to identify poisons in human tissues especially by way of autopsies and forensic investigation.

Today forensic toxicology has expanded to include alcohol testing techniques as well as testing athletes for intake of performance enhancing substances.

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3 years ago

Suppose we could shrink the Earth without changing its mass. At what fraction of its current radius would the free-fall accelera

spin [16.1K]

Answer:

$R' = \frac{1}{\sqrt{3}}R$

Explanation:

The acceleration due to gravity on the surface of the Earth is given by:

$g=\frac{GM}{R^2}$

where

G is the gravitational constant

M is the mass of the Earth

R is the radius of the Earth

Here we want to find the new Earth radius R' for which the gravitational acceleration at the surface, g', would be 3 times the current value of g:

$g' = 3g$

So we would have

$\frac{GM}{R'^2}=3(\frac{GM}{R^2})$

Solving the equation for R', we find

$R'^2 = \frac{1}{3}R^2\\R' = \frac{1}{\sqrt{3}}R$

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3 years ago

Read 2 more answers

The name of the SI unit for force is the watt<br> \

user100 [1]

Explanation:

The name of the SI unit for force is NEWTON .

ur statement is false

have a nice day

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3 years ago

An ice skater can change the rate of their spin by moving their arms into and away from their body without any other forces or t

pychu [463]

Answer:

Angular momentum is conserved if there are no external forces

P1 = P2

I1 ω1 = I2 ω2

ω2 / ω1 = I1 / I2

If the skater pulls their arms in (I2 < I1) then the angular speed must increase for angular momentum to be conserved.

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3 years ago