3 years ago

Which table correctly identifies the SI units for length, volume, mass, and temperature?

Physics

1 answer:

vampirchik [111]3 years ago

6 0

Answer:

answer should be B

Explanation:

took the test

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Ronch [10]

Waves and wind because wind can blow the rock or sand away and waves can wash is away

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4 years ago

Reducing friction in a machine

SVETLANKA909090 [29]

Isn't the correct answer it increases efficiency, so C?

Sorry if I'm wrong but pretty sure that's right!

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4 years ago

Two bicyclists start twenty miles apart and head toward each other, each going at a steady rate of 10 m.p.h. At the same time, a

hodyreva [135]

Answer:

15 miles

Explanation:

Speed of both bicyclists is 10 mph

Speed of fly is 15 mph

Time they both will meet at is t

Distance they are apart is 20 miles

Distance = Speed×Time

$10t+10t=20\\\Rightarrow 20t=20\\\Rightarrow t=1\ h$

The time after which they will meet is 1 hour.

The distance traveled by the fly in hour is

$15\times 1=15\ mi$

The total distance fly covered is 15 miles

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4 years ago

A 2.0-kg laptop sits on the horizontal surface of the seat of a car moving at 8.0 m/s. The driver starts slowing down to stop. F

ivanzaharov [21]

Answer: $32.65\ m$

Explanation:

Given

mass of laptop m=2 kg

The velocity of car u=8 m/s

The coefficient of static friction is $\mu_s=0.4$

The coefficient of kinetic friction is $\mu_k=0.2$

As the car is moving, so the coefficient of kinetic friction comes into play

deceleration offered by friction $\mu_kg=0.2\times 9.8\ m/s^2$

Using the equation of motion $v^2-u^2=2as\\$

insert the values

$0^2-8^2=2(-0.2\times 9.8)s\\\\s=\dfrac{64}{1.96}\\\\s=32.65\ m$

4 0

3 years ago

7. Identify the substance if a 5g sample is found to have a volume of 2.5ml.

almond37 [142]

Answer:

Explanation:

Density ( as shown) = g/ml

density = 5 g / 2.5 ml = 2 g/ml

6 0

2 years ago