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QveST [7]
3 years ago
6

NEED AN ANSWER FAST PLEASE 70 PTS

Physics
1 answer:
lara [203]3 years ago
4 0

Answer:

0.062

m/s

Explanation:

Quantities:

m

a

=

70

kg

m

o

=

26

kg

v

o

f

=

1

6

m/s

v

a

f

=

?

m/s

v

a

i

=

v

o

i

≡

v

i

m/s

p

a

i

+

p

o

i

=

p

a

f

+

p

o

f

m

a

v

a

i

+

m

o

v

o

i

=

m

a

v

a

f

+

m

o

v

o

f

(

m

a

+

m

o

)

v

i

=

m

a

v

a

f

+

m

o

v

o

f

(

70

+

26

)

v

i

=

(

70

)

v

a

f

+

(

26

)

(

1

6

)

96

v

i

=

70

v

a

f

+

13

3

We can assume that the initial speed of the astronaut is zero for the sake of argument. It says "floating in space", so maybe that actually means 0. The actual initial and final speeds are unimportant, because we are just looking for the change (or difference) in the two speeds.

−

13

3

=

70

v

a

f

v

a

f

=

−

0.062

m/s

This means that the astronauts speed will change by  

0.062

m/s and the astronaut will move in the opposite direction of the object (hence the minus sign).

Explanation:

braineist pls

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A block of mass 10.0 kg is pulled to the right along a rough horizontal surface with a constant horizontal force of 20.0 N. The
Yakvenalex [24]

Answer:

the magnitude of acceleration will be 1.50m/s^2

Explanation:

To calculate your acceleration, you can use your formula that states that the net force on an object is equal to the mass of the object multiplied by the acceleration of the object. Fnet=ma

if you draw out this situation and label the forces you will have your vector towards the right with a magnitude of 20.0N and then your friction vector will be pointing to the left (in other words, in the negative direction) (opposing the direction of movement) with a magnitude of 5.00N, with the 10.0 kg box in the middle.

The net force will be calculated using F1+F2=Fnet where your F1=20.0N and F2= -5.00N (since it is towards the negative direction).

you will find that Fnet=15.0N

With that, plug in the values you know to calculate the acceleration of the block:

Fnet=ma

(15.0N)=(10.0kg)a    from her you can divide both sides by 10 to isolate a:

1.50=a  (and now make sure to label the units of your answer)

a=1.50m/s^2 (which is the typical unit for acceleration)

7 0
3 years ago
This question is related to inertia:
luda_lava [24]
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3 0
3 years ago
Charges q3 and q5 are now replaced by two charges, q2 and q6, having equal magnitude and sign (-3.4 μC). Charge q2 is located at
ivanzaharov [21]
I believe the answer would be zero because the q1 and q2 are equal on opposite sides and it

hope this helps
3 0
3 years ago
In the voltage multiplier experiment, why not use a zener diode?​
Svet_ta [14]

Answer:

<em>A voltage multiplier is an electrical circuit that converts AC electrical power from a lower voltage to a higher DC voltage, typically using a network of capacitors and diodes.</em>

6 0
2 years ago
A dump truck contains a load of soil. Which action will leave the dump truck's
soldier1979 [14.2K]

Answer:

D

Explanation:

This will not change the weight and therefore not change the inertia

3 0
3 years ago
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