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3 years ago

A scientist measures the growth of a bamboo plant over time. The table below shows the results.

Physics

2 answers:

AleksAgata [21]3 years ago

6 0

ok ok this one i cant do o-o

mihalych1998 [28]3 years ago

3 0

A. 1.35 is the number in between 1.2 and 1.5.

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You find it hard to ride faster on your bike because a force is pushing back on you. What type of force is slowing you down?

Nataly [62]

Answer by YourHope:

Hi! :)

You find it hard to ride faster on your bike because a force is pushing back on you. What type of force is slowing you down?

C) Air resistance!

Have a BEAUTIFUL day~

4 0

3 years ago

Read 2 more answers

if a swimmer is traveling at a constant speed of 0.85 m/s how long would it take to swim the length of 50 meter olymic sized poo

VARVARA [1.3K]

Answer:

58.82 Seconds

Explanation:

50m/0.85m/s=58.82s

7 0

3 years ago

When light waves pass through the lenses of a pair of glasses the light waves

tatiyna

Goes straight though with no problem and the light waves look like it changes like it looks like it broke

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3 years ago

Which in is it Speed (S) or Velocity (V)?

Andrej [43]

Explanation:

Speed has only magnitude.

Velocity has magnitude and direction.

"A bike goes 25 m/s toward main street."

This includes a direction, so it is velocity (V).

"A person walks 4 mph."

This has only magnitude, so it is speed (S).

"A plane flies 200 m/s."

This has only magnitude, so it is speed (S).

"A bird flies 100 mph due south."

This includes a direction, so it is velocity (V).

8 0

3 years ago

A small truck has a mass of 2145 kg. How much work is required to decrease the speed of the vehicle from 25.0 m/s to 12.0 m/s on

MAXImum [283]

Answer:

The work required is -515,872.5 J

Explanation:

Work is defined in physics as the force that is applied to a body to move it from one point to another.

The total work W done on an object to move from one position A to another B is equal to the change in the kinetic energy of the object. That is, work is also defined as the change in the kinetic energy of an object.

Kinetic energy (Ec) depends on the mass and speed of the body. This energy is calculated by the expression:

$Ec=\frac{1}{2} *m*v^{2}$

where kinetic energy is measured in Joules (J), mass in kilograms (kg), and velocity in meters per second (m/s).

The work (W) of this force is equal to the difference between the final value and the initial value of the kinetic energy of the particle:

$W=\frac{1}{2} *m*v2^{2}-\frac{1}{2} *m*v1^{2}$

$W=\frac{1}{2} *m*(v2^{2}-v1^{2})$

In this case:

W=?
m= 2,145 kg
v2= 12 $\frac{m}{s}$

v1= 25 $\frac{m}{s}$

Replacing:

$W=\frac{1}{2} *2145 kg*((12\frac{m}{s} )^{2}-(25\frac{m}{s} )^{2})$

W= -515,872.5 J

<u><em>The work required is -515,872.5 J</em></u>

3 0

3 years ago