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2 years ago

Work is a transfer of (1 point) energy. force. mass. motion.

Physics

2 answers:

olya-2409 [2.1K]2 years ago

8 0

Answer: Work is a transfer of energy.

Explanation:

Energy is the ability to do work. The energy can be transferred to do work.

Work is done whenever the energy is transferred from one form to another.

To do work, the force is applied through distance.

The force is applied to an object to bring in motion.

Therefore, work is a transfer of energy.

jok3333 [9.3K]2 years ago

6 0

Energy is the ability to do work.

So work can not be done without the transfer of energy from one body to another.

Work is the transfer of energy.

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A power boat pulls a water skier 2.6 km maintaining a

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Answer:

W = 650 [kJ]

Explanation:

The definition of work is denoted by the product of force by the distance traveled by the body, this distance traveled corresponds to the direction of the force.

In this case we have:

d = distance = 2.6[km] = 2600 [m]

F = force = 250 [N]

W = F*d = 250 * 2600 = 650000 [J] or 650 [kJ]

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3 years ago

If 2000 kg cannon fires 2 kg projectile having muzzle velocity 200 m/s then the KINETIC ENERGY of the CANNON will be ("E4" means

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Answer:

M V = m v conservation of momentum (Caps-cannon Small-projectile)

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3 years ago

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Using coils of fewer turns on the electromagnet

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2 years ago

The force of gravitation between two spherical bodies is Gm1 m2 /r2, where r is separation between their dash

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Consider a large tank holding 1000 L of pure water into which a brine solution of salt begins to owat a constant rate of 6L/min.

lbvjy [14]

Answer:

T = 693.147 minutes

Explanation:

The tank is being continuously stirred. So let the salt concentration of the tank at some time t be x in units of kg/L.

Therefore, the total salt in the tank at time t = 1000x kg

Brine water flows into the tank at a rate of 6 L/min which has a concentration of 0.1 kg/L

Hence, the amount of salt that is added to the tank per minute = $(6\times0.1)kg/min=0.6kg/min$

Also, there is a continuous outflow from the tank at a rate of 6 L/min.

Hence, amount of salt subtracted from the tank per minute = 6x kg/min

Now, the rate of change of salt concentration in the tank = $\frac{dx}{dt}$

So, the rate of change of salt in the tank can be given by the following equation,

$1000\frac{dx}{dt} =0.6-6x$

or, $\int\limits^{0.05}_0 {\frac{1000}{0.6-6x} } \, dx =\int\limits^T_0 {} \, dt$

or, T = 693.147 min (time taken for the tank to reach a salt concentration

of 0.05 kg/L)

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3 years ago