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NNADVOKAT [17]
3 years ago
12

A car has a mass of 550 kg. What is the weight of the car?

Physics
2 answers:
lozanna [386]3 years ago
3 0
1212.54 is what 550 kgs is equal to the weight of the car
ExtremeBDS [4]3 years ago
3 0

<u>Answer:</u> The weight of the car is 5390 N

Explanation:

Weight is defined as the force exerted by the body on any surface. It is also defined as the product of mass of the body multiplied by the acceleration due to gravity.

Mathematically,

W=mg

where,

W = weight of the car

m = mass of the car = 550 kg

g = acceleration due to gravity on Earth = 9.8m/s^2

Putting values in above equation, we get:

W=550kg\times 9.8m/s^2=5390N

Hence, the weight of the car is 5390 N

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A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 27 ∘ above t
ycow [4]

Answer:

Explanation:

Applied force, F = 18 N

Coefficient of static friction, μs = 0.4

Coefficient of kinetic friction, μs = 0.3

θ = 27°

Let N be the normal reaction of the wall acting on the block and m be the mass of block.

Resolve the components of force F.

As the block is in the horizontal equilibrium, so

F Cos 27° = N

N = 18 Cos 27° = 16.04 N

As the block does not slide so it means that the syatic friction force acting on the block balances the downwards forces acting on the block .

The force of static friction is μs x N = 0.4 x 16.04 = 6.42 N   .... (1)

The vertically downward force acting on the block is mg - F Sin 27°

                                                      = mg - 18 Sin 27° = mg - 8.172    ... (2)

Now by equating the forces from equation (1) and (2), we get

mg - 8.172 = 6.42

mg = 14.592

m x 9.8 = 14.592

m = 1.49 kg

Thus, the mass of block is 1.5 kg.  

6 0
3 years ago
You are holding a finishing sander with your right hand. THe sander has a flywheel which spins counterclockwise as seen from beh
ryzh [129]

Answer:

c. turn downward

Explanation:

From the information given:

To find the tendency of the sander;

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Since the flywheel of the sander is in counterclockwise movement, hence the torque direction will be outward placing on the wall. However, provided that the movement of the sander is toward the right, then there exists an opposite force that turns downward which showcases the tendency in the sander is downward.

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How much time would it take for the sound of thunder to travel 2000 meters if sound travels of 330 meters per sec
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2000÷330=6.06 repatant so the answer would be about 6.06 seconds
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Yes. Why would you think that there are some special processes in everyday life that don't ?
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