2 years ago

What two things must you know to find the momentum of an object? :( anyone?

2 answers:

7 0

Linear Momentum is a vector quantity.
 p = mass * Velocity
We need to know the mass, and velocity (magnitude and direction)

miss Akunina [59]2 years ago

4 0

You will need too know the mass and velocity

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How do you find the net force of 225 N

eimsori [14]

Answer:

2.65

Explanation:

Its simple just find the newtons

5 0

2 years ago

How is a light wave likely to react when hitting a shiny opaque object?

shepuryov [24]

Answer:

Explanation:

The light wave will be reflected

6 0

2 years ago

The period of a pendulum of length 0.500 m is

mars1129 [50]

Answer:

C. 1.42 s

Explanation:

Givens:

length = 0.5m

gravity = 9.807 m/s

Solve:

T = 2π√(L/g)

T = 2π√(0.5/9.807)

T = 2π√(0.0509)

T = 2π * 0.22579

T = 6.28318 * 0.22579

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5 0

2 years ago

Which will displace a greater volume of water from a full tub, a 2 gram piece of iron or a floating toy boat that weighs 2 grams

kobusy [5.1K]

2 gram of iron is heavier than 2 gram of a floating boat.

8 0

3 years ago

The human small intestine moves food along its 6.9- m length by means of peristalsis, a contraction and relaxation of muscles th

Kisachek [45]

Answer:

1.24 J

Explanation:

The work done by a force is given by

$W=Fd cos \theta$

where

F is the magnitude of the force

d is the displacement

$\theta$ is the angle between the directions of F and d

In this problem,

F = 0.18 N is the average force exerted by the muscles

d = 6.9 m is the displacement

$\theta=0^{\circ}$ (we assume the direction of the force is parallel to the displacement)

Substituting,

$W=(0.18)(6.9)(cos 0)=1.24 J$

7 0

2 years ago