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timama [110]
2 years ago
7

Refer to the attached image!!!​

Physics
1 answer:
dimaraw [331]2 years ago
6 0

The time of motion of the track star is determined as 0.837 s.

<h3>Time of motion of the track star</h3>

The time of motion of the track star is calculated as follows;

T = (2u sinθ)/g

where;

  • T is time of motion
  • g is acceleration due to gravity
  • θ is angle of projection

T = (2 x 12 x sin20)/9.8

T = 0.837 s

Learn more about time of motion here: brainly.com/question/2364404

#SPJ1

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Barium, a group 2 element, forms an ionic compound with sulfur, a group 16 element. What is the formula for barium sulfide?
WITCHER [35]

Answer:BaS

Explanation:

Ba- barium

S-sulfur

6 0
3 years ago
The current through a 10-ohm resistor connected to a 120-V power supply is The current through a 10-ohm resistor connected to a
Mazyrski [523]

Answer:

12 A

Explanation:

V= I * R

V/R = I

120 V /10 Ω  = 12 AMPS

7 0
2 years ago
A 1.0 kg rock is thrown straight upward with an initial speed of 8.0 m/s. What is its speed
Ronch [10]

Answer:5.7m/s

Explanation:

Mass=1kg

Initial velocity=u=8m/s

height=h=1.6m

Final velocity =v

Acceleration due to gravity=g=9.8m/s^2

v^2=u^2-2xgxh

v^2=8^2-2x9.8x1.6

v^2=8x8-2x9.8x1.6

v^2=64-31.36

v^2=32.64

Take the square root of both sides

√(v^2)=√(32.64)

v=5.7

Speed at the height of 1.6m is 5.7m/s

8 0
3 years ago
On the earth, when an astronaut throws a 0.250 kg stone vertically upward, it returns to his hand a time T later. On planet X he
Igoryamba

Answer:\frac{g}{2}

Explanation:

Given

mass of stone\left ( m\right )=0.250 kg

Let initial velocity with which it is thrown upward is u

therefore after time t it's velocity is zero at highest point

t=\frac{u}{g}

where g= gravity at earth

therefore T=2\times \frac{u}{g}-------1

Now same thing is done in Planet X where gravity is g'

therefore time taken by stone to reach surface is

T'=T=2\times \frac{u}{g'}-------2

Divide 1 & 2

\frac{T}{T'}=\frac{g'}{g}

\frac{1}{2}=\frac{g'}{g}

g'=\frac{g}{2}

8 0
3 years ago
Two sets of solid double yellow lines spaced two or more feet apart indicate:.
vodomira [7]

Two Sets of solid double yellow lines with spaced two or more feet apart indicates that Do not drive on or over the barrier.

<h3>What are the line colors in lane control?</h3>

Solid yellow lines - it is marked at the center of a road and used for two-way traffic.

Broken yellow lines - It indicate that you may pass if the broken line is next to your driving lane.

Two solid yellow lines - It indicates no passing or Do not drive on or over the barrier.

Two sets of solid double yellow lines are considered a barrier , make a left turn, or a U-turn to cross it.

For more lane control content visit

brainly.com/question/1258438

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6 0
2 years ago
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