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3 years ago

Given a force of 88n and an acceleration of 4m/s2 what is the mass?

Physics

2 answers:

Hitman42 [59]3 years ago

5 0

F=ma
m=F/a = 88/4 = 22 kg

Leni [432]3 years ago

3 0

Answer:

Mass, m = 22 kg

Explanation:

It is given that,

Force, F = 88 N

Acceleration, $a=4\ m/s^2$

We need to find its mass. It can be calculated using the formula of force as per second law of Newton i.e.

F = m a

$m=\dfrac{F}{a}$

$m=\dfrac{88\ N}{4\ m/s^2}$

m = 22 kg

So, the mass of the object is 22 kg. Hence, this is the required solution.

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2 years ago

People in the future may well live inside a rotating space structure that is more than 2 km in diameter. Inside the structure, p

Sergeeva-Olga [200]

Answer:

option B

Explanation:

given,

diameter of the rotating space = 2 Km

Force exerted at the edge of the space = 1 g

force experienced at the half way = ?

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Force is equal to centripetal acceleration.

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g = ω² r

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g' = ω² r'

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3 years ago

Give reason : the action and reaction do not lead to equilibrium ?

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3 years ago

Two identical resistors are connected in parallel across a 26-V battery, which supplies them with a total power of 7.1 W. While

Gnom [1K]

Answer:

A) R = 190.42 Ω

B) P = 5.325 W

Explanation:

We are given;

Total power;P_tot = 7.1 W

Voltage;V = 26 V

A)We are told that while the battery is still connected, one of the resistors is heated, so that its resistance doubles.

Thus, the power is doubled.

Now, formula for power is;

P = IV

Thus, since power is doubled, we have;

P = 2(IV)

Now, formula for current is; I = V/R

So, P = 2V²/R

Making R the subject, we have;

R = 2V²/P

In this question, P is p_total = 7.1 W

Thus;

R = (2 × 26²)/7.1

R = 190.42 Ω

B) Now, the resistance of the resistors are R and 2R.

Formula for power in this context is;

P = V²/R

Thus,

Total power delivered to the resistors is;

P = V²/R + V²/2R

P = 3V²/2R

P = (3 × 26²)/(2 × 190.42)

P = 5.325 W

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3 years ago