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4 years ago

Write the electron configurations for titanium (Ti), vanadium (V), chromium (Cr), and manganese (Mn).

1 answer:

8 0

See from periodic table the proton or atomic number of elements u want to know about then as u know first electron shell can hold 2 electrons 2nd can hold eight as well as all others........protons are equal to electrons so divide proton number into shells but remember to use amounts which it can hold

CHEERS !!

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21. True or False: Static friction prevents you from slipping when you walk on a sidewalk.

Sloan [31]

Answer:

Yes it is true because static friction help us to make grip between the foot and the ground surface

Explanation:

Yes, as we know that the friction between two surface is of two types

1) Static friction

2) Kinetic friction

When two surface moves relative to each other then the friction force between two surface is kinetic friction and it always opposes the relative motion of two rough surface

While when one surface has tendency to move with respect to its contact surface but if it can not move on it then in this case it is static friction

So relative motion is not possible in this type of friction

So static friction helps to prevent slipping

3 0

4 years ago

An amateur player is about to throw a dart with an initial velocity of 15 meters/second onto a dartboard that is at a distance o

inysia [295]

Answer:

vertical distance, s = 0.16 meters

Explanation:

It is given that,

An amateur player is about to throw a dart with an initial velocity of 15 meters/second onto a dartboard.

Dashboard is placed at a distance of 2.7 meters.

Calculating time from velocity and distance i.e. $t=\dfrac{d}{s}=\dfrac{2.7}{15}\ s=0.18\ s$

Using second equation of motion for finding vertical distance :

$s=ut+0.5gt^2$

Here, u = 0 (for vertical velocity )

$s=0.5gt^2$

$s=0.5\times 10\times (0.18)^2$

s = 0.162 meters

or s = 0.16 meters

Hence, the vertical distance by which the player will miss the target if he throws the dart horizontally, in line with the dartboard is 0.16 meters.

3 0

3 years ago

I NEED THE ANSWER ASAP I GIVE THANKS + 5 STARS

Kobotan [32]

Work or energy spent=force times distance=25N*4m=100Nm
power=energy or work divided by time=100Nm/5s=20Nm/s

5 0

4 years ago

Two objects are held close together. When they are released, they move toward one another. Which conclusion is supported by this

Liula [17]

Answer:

The objects have opposite charges.

Explanation:

The object when released are moving towards each other simply because they attract each other.

According to coulombs law of charges, like charges repel and will move away from one another.
Unlike charges attracts and moves towards one another
Since the objects are coming towards each other, they are of opposite charges.

6 0

3 years ago

Read 2 more answers

An object has a mechanical energy of 1575 J and a potential energy of 1265 J.

laila [671]

A. 1575 - 1265 = 310J

B. KE 1/2 MV^2

V=√2·KE/M = √2(310)/12 V = 7.2mls

C. PE = 1265 = mgh

h= 1265/mg = 1265/(12)(92) h= 10.8m

A. KE = 1/2 mv^2 0.5(5)(12)^2 KE = 360J

B. PE = mgh = (5)(9.8)(2.6) PE = 127.4J

C. ME = KE + PE = 360 + 127.4 ME = 487.4J

5 0

4 years ago