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3 years ago

The table re[resents the forces on four objects, with directions.

Physics

2 answers:

lesantik [10]3 years ago

7 0

The correct answer is Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.

Let me know if you have any questions. Have a great day!

kirill115 [55]3 years ago

7 0

Answer:

Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.

Explanation:

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A gas-turbine power plant operating on the simple Brayton cycle has a pressure ratio of 7. Air enters the compressor at 0°C and

Ivahew [28]

Answer:

Answers of the Both parts are in the following attachment

Explanation:

4 0

3 years ago

A cart of mass M = 2.40 kg can roll without friction on a level track. A light string draped over a light, frictionless pulley c

sergiy2304 [10]

Answer:

Part a)

$a_{hanger} = g - \frac{T}{m}$

Part b)

$a_{cart} = \frac{T}{M}$

Part c)

$a = \frac{mg}{M + m}$

Part d)

$a = 1.35 m/s^2$

Explanation:

Part a)

For hanger we know that it will have tension force upwards while it has downwards its weight so we will have

$mg - T = ma$

so we have

$a_{hanger} = g - \frac{T}{m}$

Part b)

now for car that is rolling on the floor the net force is given as

$F = Ma$

$T = Ma$

$a_{cart} = \frac{T}{M}$

Part c)

now we know that the cart and the hanger both are connected to each other

so they must have same acceleration

so we will have

$T = Ma$

$mg - Ma = ma$

$a = \frac{mg}{M + m}$

Part d)

now we know that

M = 2.40 kg

m = 0.50 kg

so we will have

$a = \frac{0.50(9.81)}{2.40 + 0.50}$

$a = 1.35 m/s^2$

6 0

3 years ago

How does a merry go round use potential and kinetic energy

pentagon [3]

Answer: This should be a huge help in ur answer...

Explanation: potential energy is the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors and kinetic energy is energy which a body possesses by virtue of being in motion.

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3 years ago

Will giv cookie if answer :)

e-lub [12.9K]

Answer :B, Because thermal energy come from the ahnd and the temperature from the outside Now coookie :3

Explanation:

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3 years ago

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Given three resistors of different values, how many possible resistance values could be obtained by using one or more of the res

Tasya [4]

Answer:

8 possible combinations

Assuming R 1, R 2 and R 3 be three different Resistance

1- all three in series

2-all three in parallel

3- R 1 and R 2 in series and parallel with R 3

4-R 1 and R 3 in series and parallel with R 2

5-R 2 and R 3 in series and parallel with R 1

6- R 1 and R 2

in parallel and series with R 3

7-R 1 and R 3 in parallel and series with R 2

8-R 2 and R 3 in V with R 1

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3 years ago