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Vlad1618 [11]
3 years ago
9

In physics, for a given object, work divided by distance will equal

Physics
1 answer:
Genrish500 [490]3 years ago
5 0
It is force because work/distance= force
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The voltage across a membrane forming a cell wall is 74.0 mV and the membrane is 9.20 nm thick. What is the electric field stren
Sindrei [870]

Answer:

7.60× 10^6 V/m

Explanation:

electric field strength can be determined as ratio of potential drop and distance, I.e

E=V/d

Where E= electric field

V= potential drop= 74.0 mV= 0.07 V

d= distance= 9.20 nm = 9.2×10^-9 m

Substitute the values

E= 0.07/ 9.2×10^-9

= 7.60× 10^6 V/m

5 0
3 years ago
CP Bang! A student sits atop a platform a distance h above the ground. He throws a large firecracker horizontally with a speed.
Firlakuza [10]

Answer:

 h = v₀ g / a

Explanation:

We can solve this problem using the kinematic equations. As they indicate that the air does not influence the vertical movement, we can find the time it takes for the body to reach the floor

          y = v_{oy} t - ½ g t²

The vertical start speed is zero

            t² = 2t / g

The horizontal document has an acceleration, with direction opposite to the speed therefore it is negative, the expression is

            x = v₀ₓ t - ½ a t²

Indicates that it reaches the same exit point x = 0

           v₀ₓ t = ½ a t2

           v₀ₓ = ½ a (2h / g)

           v₀ₓ = v₀

           h = v₀ g / a

7 0
3 years ago
6. When can you say that an object is accelerating?
tia_tia [17]

Answer:

When the speed is changing is the correct answer

Explanation:

Because acceleration is rate of change of velocity

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

8 0
2 years ago
Why did places like Harvard support and perform lobotomies?
pshichka [43]

Answer:

yes

Explanation:

5 0
3 years ago
Liquid helium has a temperature of 4k what is the temperature on celsius and fahrenheit
lesya692 [45]

Answer:

Explanation:

4K

°C = K - 273

= 4 - 273

= - 269 °C

° F = 9/5 (K - 273) + 32

= 9/5 × (4 - 273) + 32

= 1.8(-269) + 32

= - 487.4. + 32

= -455.4 °F

8 0
3 years ago
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