1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LenaWriter [7]
3 years ago
8

Please answer it fast and correctly​

Physics
1 answer:
ivanzaharov [21]3 years ago
3 0

Answer:

(1) chess is played by him

(2) The great black engine was seen by her

(3) Arrangements for functions had been made by him

(4) A meeting is being attended by Raman

= when the last of the guests left, I went back into the hall to look for my mobile phone that I had kept on the table, I found that my mobile phone was not there. I felt freaked and I asked to every member of my family about my phone, but nobody had idea about that. then there was a phone call made by my uncle to my father, that his son had taken the mobile by mistake. After sometime, My uncle came to return my mobile. Then I took a sigh of relief .

please mark me as a brainelist

You might be interested in
A father is pulling his child on a sled in the snow. According to Newton’s Third Law, the force the father exerts on the sled is
viktelen [127]
That is because there are other forces like the friction forces that apply differently on both of them. The frictional forces applied to the sled are smaller than they are on the father, for example, so it's possible for him to pull it.
5 0
3 years ago
A roller coaster has a vertical loop with radius 25.7 m. With what minimum speed should the roller-coaster car be moving at the
gogolik [260]

Answer:

15.88m/s

Explanation:

At the top of the roller coaster you will have three forces acting on the roller-coaster. See the image below. Fc is the centripetal force (for an object in circular motion), Fg is the gravitational force, and Fn is the normal force. To achieve the minimum speed we assume the roller-coaster is barely touching the vertical loop and so the normal force is zero. This leaves two acting forces.

F_g = F_c\\mg = \frac{m\times v^2}{r}\\v = \sqrt{gr} = \sqrt{9.81 \times 25.7}  = 15.88 m/s

7 0
3 years ago
A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise
Reil [10]

Answer: 329.28 m/s

Explanation:

Given that:

Distance of sound = 823.2 m

Time taken for sound = 2.5 seconds

The speed of traveling sound = ?

Speed is obtained by dividing the distance travelled by the time taken for the travel.

Speed = Distance / time

Speed = 823.2m/2.5 seconds

Speed = 329.28 m/s

Thus, the sound traveling as fast as 329.28 m/s

8 0
3 years ago
Which describes why people on earth can see light from the stars in the sky that are so far away?
mina [271]
You are correct.  It is D.  Don't make me copy it.
3 0
3 years ago
Suppose you were hanging in empty space at rest, far from the Earth, but at the same distance from the Sun as the Earth. What mi
schepotkina [342]

Answer:

V = 42187 m/s = 42.18 km/s

Explanation:

given data:

mass of sun is  = 2\times 10^{30} kg

radius of earth orbit is 1.5\times 10^{11} m

minimum speed can be determined by using following formula

V = (\frac{2gM}{r}))^{1/2}

where G is \times 10^{-11}

Plugging all value to get desired value

V  =(\frac{2\times 6.674 \times 10^{-11}2\times 10^{30}}{1.5\times 10^{11}})^{1/2}

V = 42187 m/s = 42.18 km/s

4 0
3 years ago
Read 2 more answers
Other questions:
  • Why are bridges declared unsafe after a long use​
    14·1 answer
  • There are four springs stretched by the same mass.
    13·1 answer
  • What event is often considered the point where psychology split from philosophy?
    13·1 answer
  • A car has 400 kgm/s worth of momentum and runs into a truck initially at rest. What is the initial momentum of the truck?
    7·1 answer
  • What type of star systems have the most stars
    6·1 answer
  • The place below earth's surface where the earthquake begins.
    10·1 answer
  • A white dwarf star has a density of about 1.0 x 10^9 kg/m3. If the earth were to suddenly become as dense as a white dwarf star,
    6·1 answer
  • The process of blood cell formation is called
    7·1 answer
  • What is the general equation for a double-displacement reaction?
    6·1 answer
  • What part of the scientific method tests the hypothesis?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!