What letter would be a likely place for mystery element

Answers

Answer 1

Answer:

Answer:

make use of a semi-formal letter

Related Questions

Match these terms with the correct examples.1. liquid solution2. gaseous solution3. compound4. colloid5. elementa. oceansb. cloudsc. oxygend. aire. water
Matter is the ability to cause change.
When a squid pushes against the water, the squid moves forward because the ______________ pushes against the _______________.
If the absolute temperature of a gas is 600 K, the temperature in degrees Celsius is A. 705°C. B. 327°C. C. 873°C. D. 273°C.
The gravitational force between two objects is F. If masses of both the objects are halved without altering the distance between them, the gravitational force would become: Option a) F/4 Option b) F/2 Option c) 2F Option d) F^2

If a step-up transformer has a primary coil with 15 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts? A. 8 turns B. 30 turns C. 80 turns D. 160 turns

Answers

Answer:

$N_2=30turns$

So option (b) will be correct option

Explanation:

We have given that there is a step up transformer in which number of turns in primary coil is 15

That is, $N_1=15$

Primary voltage $V_1=80volt$ , and secondary voltage $V_2=160volt$

We have to find the number of turns in the secondary \

We know that for the transformer

$(N_1)/(N_2)=(V_1)/(V_2)$

$(15)/(N_2)=(80)/(160)$

$N_2=30turns$

So option (b) will be correct option

A string is wrapped around a pulley with a radius of 2.0 cm. The pulley is initially at rest. A constant force of 50 N is applied to the string, causing the pulley to rotate and the string to unwind. If the string unwinds 1.2 m in 4.9 s, what is the moment of inertia of the pulley

Answers

Answer:

0.20kg-m^2

Explanation:

Let the linear velocity of the rope(=of pulley) is v m/s

Using kinematic equation

=> v = u + at

=>v = 0 + 4.9a

=>v = 4.9a ------------ eq1

By v^2 = u^2 + 2as

=>v^2 = 0 + 2 x v/4.9 x 1.2

=>4.9v^2 - 2.4v = 0

=>v(4.9v - 2.4) = 0

=>v = 2.4/4.9 = 0.49 m/s

Thus by v = r x omega

=>omega = v/r = 0.49/0.02 = 24.49 rad/sec

BY W = F x s = 50 x 1.2 = 60 J

=>KE(rotational) = W = 1/2 x I x omega^2

=>60 = 1/2 x I x (24.49)^2

=>I = 0.20 kg-m^2

The process in which a substance changes from a gaseous state to the liquid state is A. critical temperature.
B. absolute zero.
C. evaporation.
D. condensation.

Answers

This process is called D. Condensation.

You can easily notice this happen on Air conditioning devices, where the cold gaseous air is turned into water that drips from the air conditioning unit due to condensation.

By definition we have to:

In physics, condensation is a change of state by which a substance passes from a gaseous state to a liquid state.

For example, in a refrigeration cycle, the refrigerant leaves the compressor in the gaseous state, from here, it enters the condenser, a state change called condensation occurs and the refrigerant leaves in liquid form. This process is useful in air conditioners.

Answer:

The process in which a substance changes from a gaseous state to the liquid state is:

D. condensation.

A car travels from boston

Answers

A wise decision. Boston is a good place to be ... from.

The _______ principle encourages us to resolve a set of stimuli, such as trees across a ridgeline, into smoothly flowing patterns

Answers

If this question has the same set of options as to the following, the answer would be letter d. Continuity.
Continuity in Psychology accounts for visual perception of immediate environments that piece together a background's individual elements to form a panoramic image.

The choices are:
A.) depth perception.
B.) perception.
C.) similarity.
D.) continuity.

Was D the correct answer?

If the mass of one object is tripled, and the distance between them is doubled, how does the force of gravity change?a. force is multiplied by 4
b. Force is divided 3
c. Force is multiplied 3/4
d. Force is divided 3/4

Answers

Force between two object is given by F = Gm1m2/r^2
If the mass of one object is tripled, and the distance between them is doubled,
then F(new) = Gm13m2/(2r)^2 = 3Gm1m2/4r^2 = 3/4 x Gm1m2/r^2 = 3/4 x F
i.e. F(new) = 3/4 multiplied by F.
Therefore, Force is multiplied by 3/4.

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using kepler's 3rd law and newton's law of universal gravitation, find the period of revolution p of the planet as it moves around the sun. assume that the mass of the planet is much smaller than the mass of the sun.