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
jasenka [17]
2 years ago
10

The water-balloon weighs 4.9 N. gravitational field strength = 9.8 N/kg Calculate the mass of the water-balloon

Physics
1 answer:
vredina [299]2 years ago
4 0

Answer:

0.5kg

Explanation:

Mass = Weight / Gravitational field strength

Mass = 4.9 / 9.8

Mass = 0.5

You might be interested in
Tanks of compressed gas must be kept away from heat sources. If a compressed–gas tank is heated too much, it may explode and cau
notka56 [123]

The answer to this question is A. As the gas gets hotter, the molecules gain energy and move farther apart, causing the gas to expand. This is because, whenever you heat a substance, (solid, liquid, or gas), the molecules in the substance will always move more rapidly causing the substance to expand and the molecules to move further away from one another.

4 0
3 years ago
Read 2 more answers
A hot air balloon has just lifted off and is rising at the constant rate of 1.60 m/s. suddenly, one of the passengers realizes s
Wewaii [24]

speed of balloon which is rising upwards with constant speed is

v_1 = 1.6 m/s

speed of the camera which is thrown up from the ground

v_2 = 10.2 m/s

the distance between camera and balloon when it is thrown from the ground

d = 2.60 m

now let say after time "t" the camera is catch by her friend in the balloon

So the position of balloon and camera must be same

y_{balloon} = y_{camera}

2.6 + 1.60 t = 10.2* t + \frac{1}{2}(-g)t^2

2.6 = 8.6 *t - 4.9 t^2

Solving above quadratic equation we got

t = 0.39 seconds

So after t = 0.39 s her friend will get her camera on the balloon.

5 0
3 years ago
Read 2 more answers
The battery charger for an mp3 player contains a step-down transformer with a turns ratio of 1:38, so that the voltage of 120 v
matrenka [14]
Transformer contains two coils: primary and secondary. They allow change of voltage to lower or higher value. In first case we have step-down and in second case we have step-up transformer.
Formula used for transformer is:\frac{N_{1} }{N_{2}} = \frac{V_{1}}{V_{2}}

Where:N1 = number of turns on primary coilN2 = number of turns on secondary coilV1 = voltage on primary coilV2 = voltage on secondary coil
In a step-down transformer primary coil has more turns than secondary coil. So the ratio 1:38 means that for each turn on secondary coil we have 38 turns on primary coil.
We can solve the equation for V2:V_{2} =  \frac{ V_{1}* N_{2}  }{ N_{1} }  \\  V_{2} =  \frac{ 120* x  }{ 38x} } \\ V_{2} = 3.16V

Secondary coil provides voltage of 3.16V.
7 0
3 years ago
Two rocks, A and B, are thrown horizontally from the top of a cliff. Rock A has an initial speed of 10 meters per second and roc
maria [59]

Answer:

i need help

Explanation:

4 0
2 years ago
A rod of very small diameter with a mass 2m and length 3L is placed along the xaxis with one end at the origin. An identical rod
rewona [7]

Answer:

coordinates of the center of mass for these two rods

(x_{cm}, y_{cm})= (\frac{3L}{4},  \frac{3L}{4})cm

Explanation:

given

mass of a rod = 2m

length of the rod = 3L

mass of two rods = 2(2m) = 4m

radius = diameter/2 = \frac{3L}{2}

attached is the diagram and solution to the question

5 0
3 years ago
Other questions:
  • How many grams of nickel metal are plated out when a constant current of 15.0 Ais passed through aqueous NICl2 for 80.0 minutes?
    10·1 answer
  • When a mass of 24 g is attached to a certain spring, it makes 21 complete vibrations in 3.3 s. What is the spring constant of th
    7·1 answer
  • Which involves reflection of light waves? A. A full moon shows sunlight bouncing off the moon's surface and traveling toward Ear
    8·2 answers
  • Vector A→ has a magnitude of 8 units and makes an angle of 45° with the positive x-axis. Vector B→ also has a magnitude of 8 uni
    5·2 answers
  • What is the difference between a do universal law and a scientific theory
    14·1 answer
  • Luz, who is skydiving, is traveling at terminal velocity with her body parallel to the ground. She then changes her body positio
    13·1 answer
  • in a microscope, what happens to the sharpness of the image (resolution) as you switch from low to high power? Plz help!
    12·1 answer
  • What are the SI base units for mass length and time
    14·1 answer
  • In a series circuit, the current is _______
    14·2 answers
  • Helppppppppppppppppp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!