what is the speed of a bobsled whose whose distance time graph indicates that it traveled 113 m in 30 s

Answers

Answer 1
Answer:
Speed  =  (distance traveled)  /  (time to travel the distance)

             =       (113 m)          /          (30 sec)

             =           (113/30)    m/sec

             =               3.767 m/s    (rounded)

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You pull your sled through the snow a distance of 500 meters with a horizontal force of 200 newtons. How much work did you do?

Generally, what will happen to most liquids if the temperature is increased?a. The triple point will drop.
b. The solubility of the liquid will increase.
c. The solubility of the liquid will decrease.
d. The solubility will not change because the solubility of liquids is never affected by temperature.

Answers

Answer:

solubility increases

Explanation:

Temperature doesn't really affect solubility on liquids so it can only be D besides it's already a liquid....

How do you find the pressure (in physics) if you are given the force (Newtons) and how far the object sunk into the ground?

Answers

Answer:

pressure=force/area

Explanation:

pressure equal to force divided by area,the area is how far the object sunk into the ground

What is word meaning "heated to a glow"?

Answers


I think the word you want is "incandescent".


Question no-2 (10 mark)
find the anguler momentum of a body if K.E = 4 jule and M.I = 2kg m2.

Answers

Answer:

KE = 1/2 I ω^2

Given I = 2 kg m^2 and KE = 4 J

ω = (2 KE / I)^1/2 = (2 * 4 / 2)^1/2 = 2^1/2 sec

P = I ω        definition of angular momentum

P = 2 kg m^2 * (2 KE / I)^1/2 / sec = 2 * 2^1/2 kg m^2 / sec

Q2. Zara travelled in a train moving at an average speed of 120km/h and covered a distance of 40km towards East. Calculate the time taken by the train to cover this distance.

Answers

Answer: 20 minutes

Explanation:

Given the following :

Average speed of train = 120km/hr

Distance = 40km.

The time take by the train moving at an average speed of 120km/hr to cover a distance of 40km due is ;

Recall:

Speed = distance / time

Therefore,

Time taken = distance covered / speed

Time taken = 40km / 120km/hr

Time taken = 1/ 3 hr

Therefore, 1/3 rd of an hour equals

1/3 × 60 = 20 minutes.

Time taken) 20 minutes

Time taken by tain to cover distance is 20 minutes as:

Distance= 40 km

Speed= 120 km/h

Time= distance/speed

= 40/120

= 1/3 hour

= 20 min

or  =0.33 hrs

To know more about' Time and Speed 'visit:

brainly.com/question/28735144

Archimedes' principle states that the buoyant force on an object is equal to the density of the fluid it displaces.

Answers

The buoyant force on an object submerged in a fluid is equal to the density of the fluid it displaces.

According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid displaced by the object. The weight of the displaced fluid is directly proportional to the volume of the fluid displaced and the density of the fluid. So, the buoyant force (B) can be mathematically represented as:

B = ρ * V * g

Where:

ρ (rho) is the density of the fluid,

V is the volume of the fluid displaced by the object, and

g is the acceleration due to gravity.

The key point to remember is that the buoyant force acts in the opposite direction to gravity. If the object's weight is less than the buoyant force, it will float; if it is greater, it will sink.

To know more about Archimedes' principle here

brainly.com/question/787619

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