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3 years ago

Nearly all the light that strikes an opaque object will pass through and cast a shadow

Physics

2 answers:

ahrayia [7]3 years ago

8 0

Answer:

It’s a false statement.

Explanation:

An object which does not allow to pass light through is called as opaque object. It creates a shadow when light falls on it. While transparent object does allow to pass light though it and does not create shadow. From the above definitions, it is cleared that the given statement is false.

k0ka [10]3 years ago

5 0

I'm pretty sure the answer is false

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A boy rolls a toy car across a floor with a velocity of 3.21 m/s. How long does it take the car to travel a distance of 4.50 m?

Mariana [72]

Answer:

Time taken for the car to travel a distance of 4.50 m = 1.40 seconds

Explanation:

velocity of toy car = 3.21 m/s

distance travelled by toy car = 4.50 m

Time = ?

$Velocity = \frac{Distance}{Time} \\Time =\frac{Distance}{Velocity}$

$Time = \frac{4.50}{3.21} \\Time = 1.40s$

Therefore, the time taken for the car to travel a distance of 4.50 m = 1.40 seconds

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3 years ago

Two campers dock a canoe. One camper has a mass of 100.0 kg and moves forward at 3.0 m/s as he leaves the canoe to step onto the

Solnce55 [7]

Answer:

The combined speed of camper and canoe is 1.71 m/s.

Explanation:

Given that,

Mass of camper 1, m = 100 kg

Speed of camper 1, v = 3 m/s

The combined mass of another camper and canoe is, M = 175 kg

We need to find the combined speed of camper and canoe. According to the conservation of linear momentum, the momentum of first camper is equal to linear momentum of the canoe and the second camper.

$mv=MV\\\\V=\dfrac{mv}{M}\\\\V=\dfrac{100\times 3}{175}\\\\V=1.71\ m/s$

So, the combined speed of camper and canoe is 1.71 m/s.

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3 years ago

Identify the amplitude in the wave image below.*<br> F. G H J

alina1380 [7]

Answer:F
................

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2 years ago

a generator produces a maximum emf of 240 v when rotating at 3.7 rad/s in a magnetic field of 0.200 t. if the coil has 822 loops

Nesterboy [21]

Answer:

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2 years ago

You throw a tennis ball straight up (neglect air resistance). It takes 7.0 seconds to go up and then return to your hand. How fa

sattari [20]

Answer:

Velocity of throwing = 34.335 m/s

Explanation:

Time taken by the tennis ball to reach maximum height, t = 0.5 x 7 = 3.5 seconds.

Let the initial velocity be u, we have acceleration due to gravity, a = -9.81 m/s² and final velocity = 0 m/s

Equation of motion result we have v = u + at

Substituting

0 = u - 9.81 x 3.5

u = 34.335 m/s

Velocity of throwing = 34.335 m/s

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3 years ago