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3 years ago

Dominic made the table below to organize his notes about mixtures.

Physics

1 answer:

Andrei [34K]3 years ago

4 0

Answer:

Althought it us possible to have more then one state, it's also possible to have only one state of matter

Explanation:

You can make solutions of only one state if matter, for example , it two liquids can be mixed to form a solution they are called miscible.

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Two charges are separated by a distance d and exert mutual attractive forces of F on each other. If the charges are separated by

UkoKoshka [18]

Answer:

Explanation:

Given

Two charges are separated by a distance d and exert a mutual attractive force F on each other.

Suppose $q_1$ and $q_2$ is the charge so force is given by

$F=\frac{kq_1q_2}{d^2}-----1$

When distance is decrease to $\frac{d}{2}$

Force is given by

$F'=\frac{kq_1q_2}{(\frac{d}{3})^2}$

$F'=\frac{9kq_1q_2}{d^2}-----2$

divide 1 and 2

$\frac{F}{F'}=\dfrac{\frac{kq_1q_2}{d^2}}{\frac{9kq_1q_2}{d^2}}$

$F'=9 F$

thus the new force become 9 times of previous force

8 0

3 years ago

Identify how any organisms from the video showed variation, competition or overproduction. (Make sure to incude the name of the

Masja [62]

Answer:

Overproduction can lead to other side effects, which can be considered an advantage or a disadvantage. When more offspring are produced, it increases the odds of a spontaneous variation.

8 0

3 years ago

I WILL REPORT YOU IF YOU ANSWER WITH LINK!!! WILL GIVE BRAINLIEST

mars1129 [50]

Answer:

I think is is

Explanation:

B and C why because i have a gut feeling

8 0

3 years ago

a) The student hypothesizes that a greater fraction of kinetic energy is lost from the system during the collision when the spee

Mashcka [7]

Answer with Explanation:

One hypothesis above would probably rely on the situation called "inelastic collision." The two carts are travelling towards each other at different speed. So, this means that once they collide, the kinetic energy will not be conserved but will be transferred as sound energy, thermal energy or material deformation. The impact will be great, thus a greater fraction of kinetic energy will be lost from the system.

6 0

3 years ago

A projectile of mass m is fired straight upward from the surface of an airless planet of radius R and mass M with an initial spe

motikmotik

Answer:

K = G Mm / 9R

Explanation:

Expression for escape velocity V_e = $\sqrt{\frac{2GM}{R} }$

Kinetic energy at the surface = 1/2 m V_e ²

= 1/2 x m x 2GM/R

GMm/R

Potential energy at the surface

= - GMm/R

Total energy = 0

At height 9R ( 8R from the surface )

potential energy

= - G Mm / 9R

Kinetic energy = K

Total energy will be zero according to law of conservation of mechanical energy

K - G Mm / 9R = 0

K = G Mm / 9R

6 0

3 years ago