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3 years ago

A cat runs in a straight line. Which of the following statements about the cat's motion must be true?

Physics

1 answer:

alexira [117]3 years ago

5 0

Answer:

I would think it's A cat runs in a straight line.

Explanation:

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Write down the kirchhoff's laws in the adjoining circuit , find the current in each resistors

lapo4ka [179]

Answer:

You need a motor and a battery

Explanation:

4 0

3 years ago

A shopping cart is given an initial velocity of 4 m/s and experiences a constant acceleration of 4 m/s2. What is the magnitude o

NNADVOKAT [17]

Answer:

48m

Explanation:

Initial velocity = 4m/s
Acceleration = 4m/s²
Time = 4s
Displacement = ?

From Second equation of motion ,

$\longrightarrow$ s = ut + 1/2at²

$\longrightarrow$ s = 4*4 + 1/2*4*(4)² m

$\longrightarrow$ s = (16 + 2 * 16) m

$\longrightarrow$ s = ( 16 + 32 )m

$\longrightarrow$ s = 48 m

8 0

3 years ago

What is the physical state of water at 250°C?

mars1129 [50]

It is probably gas as pure water starts boiling at 100d degrees C

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3 years ago

A spring with spring constant 15 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is

Tpy6a [65]

Answer:

1)m=89.01 g

2)V(max) = 97.3 cm/s

Explanation:

Given that

K= 15 N/m

The maximum amplitude ,A=7.5 cm = 0.075 m

Given that 31 oscillations in 15 seconds ,this means that frequency f

f=\dfrac{31}{15}

f=2.066 Hz

lets take mass of the ball = m kg

$f=\dfrac{1}{2\pi}\times \sqrt{\dfrac{K}{m}}$

$m=\dfrac{1}{4\times \pi^2}\times{\dfrac{K}{f^2}}$

$m=\dfrac{1}{4\times \pi^2}\times{\dfrac{15}{2.066^2}}$

m=0.08901 kg

m=89.01 g

The maximum speed

V(max)= ω x A

ω = 2π f= 2 x π x 2.066 = 12.98 rad/s

V(max) = 12.98 x 0.075 =0.973 m/s

V(max) = 97.3 cm/s

3 0

3 years ago

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. There is no one a

NemiM [27]

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A pulley is a wheel on an axle or shaft that is created to support movement, it makes carry loads easier.

A pulley is a simple type of machine, which in the above explained case makes carrying a load easier.

4 0

3 years ago