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lidiya [134]
3 years ago
7

For an answer to be completed the units need to be specified why?

Physics
1 answer:
Setler79 [48]3 years ago
3 0

Answer:

so you know the units in the problem and answer are the same, if they aren't you have to convert them to the same units.

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in california the pacific plate slides past the north american plate. If the pcific plate is moving at a speed of 5 centimeters
frozen [14]

Answer:

6.34×10⁹ seconds

Explanation:

Applying,

V = d/t............. Equation 1

Where V = speed plate, d =  distance covered by the plate, t = time it takes the plate to travel

make t the subject of the equation

t = d/V............ Equation 2

From the question,

Given: d = 5 cm/yr = (5×3.154×10⁻⁹) = 1.577×10⁻⁸ m/s,  d = 100 meter

Substitute these values into equation 2

t = 100/1.577×10⁻⁸

t = 6.34×10⁹ seconds

Hence the time it takes the the plate to travel is 6.34×10⁹ seconds

3 0
3 years ago
What is the force that acts on an object and opposes its motion called?
Alika [10]
Friction is the force that acts on an object and opposes its motion
5 0
3 years ago
Two metal balls are the same size, but one weighs twice as much as the other. The balls are dropped from the top of a two story
seropon [69]

The time taken by the metal balls of the same size but different weight, to reach the ground will be the same.

Reason behind:

Two metal balls are the same size, but one weighs twice as much as the other. The balls are dropped from the top of a two-story building at the same instant of time. It is required to find the time taken by the balls to reach the ground.

In free fall, all objects experience the same acceleration owing to gravity when they are close to the earth.

g=9.8 \text{ m/s}^2 is the measure of gravitational acceleration.

Because of this, the two metal balls are the same size but have different masses. The air resistance for both balls will be the same due to their similar sizes. Let, g' be the acceleration in the presence of air resistance. The balls are both discharged at once.

From a height of h, both balls descend due to gravity G'.

Therefore, the time taken by both balls is:

\begin{aligned}&s=u t+\frac{1}{2} g t^{2} \\&u=0, s=h \\&t=\sqrt{\frac{2 h}{g}}\end{aligned}

Therefore, the time is independent of mass. Thus the time taken by both the balls, will be about the same.

Learn more about time taken by metal ball to reach the ground here,

brainly.com/question/22719691

#SPJ4

4 0
2 years ago
3. A car has a mass of 1000kg. What is its weight?<br><br> A) 9.81x10 ^ 3N<br> B) 1.89x10 ^ 3N
Strike441 [17]

Answer

A

Explanation:

Weight = Mass x Acceleration due to gravity

Weight = 1000 x 9.81

= 9810 or 9.81x10^ 3

6 0
3 years ago
When the mass of the cylinder increased from 3.0 kg to 6.0 kg, what happened to the amount of heat generated in the system?
seropon [69]

here's what you require:


The mass of the material,

m

The temperature change that occurs,

Δ

T

The specific heat capacity of the material,

c

This is the amount of heat required to raise 1 gram of that substance by 1°C.


The heat will increase


5 0
3 years ago
Read 2 more answers
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