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
Oksanka [162]
3 years ago
13

which of the following helps to explain why you can lift heavy objects more easily when they are in water

Physics
1 answer:
lara [203]3 years ago
3 0

Buoyancy from water. Buoyancy is an upward force on an object immersed in a fluid (i.e., a liquid or a gas), enabling it to float or at least to appear lighter.

You might be interested in
During an auto accident, the vehicle's air bags deploy and slow down the passengers more gently than if they had hit the windshi
vladimir2022 [97]

Answer:

At a deceleration of 60g, or 60 times the acceleration due to gravity a person will travel a distance of 0.38 m before coing to a complete stop

Explanation:

The maximum acceleration of the airbag = 60 g, and the duration of the acceleration = 36 ms or 36/1000 s or 0.036 s

To find out how far (in meters) does a person travel in coming to a complete stop in 36 ms at a constant acceleration of 60g

we write out the equation of motion thus.

S = ut + 0.5at²

wgere

S = distance to come to complete stop

u = final velocoty = 0 m/s

a = acceleration = 60g = 60 × 9.81

t = time = 36 ms

as can be seen, the above equation calls up the given variable as a function of the required variable thus

S = 0×0.036 + 0.5×60×9.81×0.036² = 0.38 m

At 60g, a person will travel a distance of 0.38 m before coing to a complete stop

7 0
3 years ago
What is the potential energy of a 30 Newton ball that is on the ground
Juli2301 [7.4K]
The potential energy of a 30N ball on the ground will be zero. With respect to height, h. Potential energy will be calculated like this. P=mgh. So if its on the ground relatively speaking the h=0. Thus inputting into the above formula. P=0.
3 0
3 years ago
In the early twentieth century, _______ redefined psychology as "the science of observable behavior."
Paha777 [63]

Explanation:

Answer :

A. John B. Watson

4 0
3 years ago
What group does paracetamol come under
agasfer [191]
Paracetamol is grouped within the 'painkillers' category. 
6 0
3 years ago
Write about the similarities and differences between kinetic and potential energy. Include specific, real world example in your
lord [1]

Answer:

Energy is transformed from potential to kinetic and vice versa

Explanation:

The energy is transformed from mechanical to kinetic energy when the object changes its position with respect to a reference point, where it loses height but increases its speed. When the object is at maximum height with respect to a reference point, it will have its maximum potential energy value. When the object passes through the reference point it will have potential energy equal to zero, but this energy will become kinetic energy.

The most characteristic and real example is that of a pendulum at one end, as can be seen in the attached image.

When the pendulum is located at the top end, as shown in Figure 1, at that point the maximum potential energy will be held. Then the pendulum is released and when it passes through the reference point and its height is zero, with respect to that point, all potential energy will have become kinetic energy in the same way at this point the maximum speed of the pendulum will be set.

8 0
3 years ago
Other questions:
  • You drive 6.00 km at 50.0 km/h and then another 6.00kmat 900 km/h Your average speed over
    5·1 answer
  • Imagine a spring made of a material that is not very elastic, so that the spring force does not satisfy Hooke’s Law, but instead
    6·1 answer
  • Suppose the entire solar nebula had cooled to 50 K before the solar wind cleared the early solar system of its gases. How would
    13·1 answer
  • The resultant of two vectors acting at a 90°-angle can be determined from the _____ of the rectangle.
    12·2 answers
  • A car speedometer has a 6% uncertainty. What is the range of possible speeds when it reads 100 km/h?
    14·1 answer
  • R,=4.00 R, = 1000.00
    6·1 answer
  • What is Newton's second law of motion?
    15·2 answers
  • Does frequency of the sound affect speed of sound
    15·1 answer
  • A bobsled’s distance-time graph indicates that it traveled 120 m in 15 s. What is the bobsled’s average speed?
    7·1 answer
  • A heavy mirror that has a width of 2 m is to be hung on a wall as shown in the figure below. The mirror weighs 700 N and the wir
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!