What is the most abundant type of sediment found on the ocean floor?

A shunting engine in a rail yard is working on a straight east-west section of line. First it travels west for 150 s with an ave

Ymorist [56]

Displacement-1

$\\ \rm\longmapsto Velocity(Time)$

$\\ \rm\longmapsto 150(4)$

$\\ \rm\longmapsto 600m$

Displcaement-2

$\\ \rm\longmapsto 200(3)$

$\\ \rm\longmapsto 600m$

Total displacement=600+600=1200m

7 0

3 years ago

Read 2 more answers

a chemical reaction a temperature change may occur because of the breaking or formation of chemical bonds that release excess en

Hoochie [10]

Answer:

it cannot be considered a physical change because it occur from the chemical reaction.

Explanation:

because physical change is the change of the size,volume, density,flexibility. in other words its a change in the outer appearance or change in which we can see or feel without using a tool or a machine

hope it help just my opinion

5 0

3 years ago

1. Gwen exerts a 16 N horizontal force as she pulls a 32N sled across a cement

PSYCHO15rus [73]

Answer:

3.6 N Kinetic friction

Explanation:

3 ) Ff = uk * Fn = 3.6 N

5 0

2 years ago

When using science to investigate physical phenomena, which characteristic of the event must exist?

Vesna [10]

The correct answer is B. Measurable

Explanation:

The use of science to investigate a phenomenon implies using measurements and observations to better understand a phenomenon or test a hypothesis. Moreover, science focuses on natural phenomena that can be objectively studied through measurement instruments such as a thermometer, balance, hydrometer, etc.

In this context, for a phenomenon to be studied by science this needs to be measurable because the use of precise instruments as wells as numbers allow scientist to analyze and understand a phenomenon. Moreover, phenomena that depend on personal perspectives and cannot be measure is considered as non-scientific.

6 0

3 years ago

A college student holds a pail full of water by the handle and whirls it around in a vertical circle at a constant speed. The ra

Pavlova-9 [17]

The minimum speed of the water must be 3.4 m/s

Explanation:

There are two forces acting on the water in the pail when it is at the top of its circular motion:

The force of gravity, mg, acting downward (where m is the mass of the water and g the acceleration of gravity)
The normal reaction, N also acting downward

Since the water is in circular motion, the net force must be equal to the centripetal force, so:

$N+mg=m\frac{v^2}{r}$