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
mylen [45]
3 years ago
9

A body of mass 70kg climbed a hill 1000m high. calculate the maximum energy gained by the body.​

Physics
1 answer:
stellarik [79]3 years ago
3 0

Potential energy = mgh

So, energy gained

= mgh

= 70kg × (9.8m/s²) × 1000m

= 686000 kgm²/s²

= 686000 J

You might be interested in
Two people are talking through a thick wall, 3 meters high, between them. This fact can best be explained by the phenomenon of A
dezoksy [38]
The answer is Ai just took it
6 0
3 years ago
what is the efficiency of a machine that can carry a load of 100 kg with an effort of 20N when its velicity ratio is 10​ ASAP
Salsk061 [2.6K]

Answer:

Efficiency of machine=4.9

Explanation:

We are given that

Mass of load=100 kg

Effort=20 N

Velocity ratio=10

We have to find the efficiency of machine.

Load=mg=100\times 9.8=980 N

Efficiency=\frac{Load}{effort}\times \frac{1}{velocity\;ratio}

Using the formula

Efficiency of machine=\frac{980}{20}\times \frac{1}{10}

Efficiency of machine=\frac{49}{10}

Efficiency of machine=4.9

7 0
4 years ago
John is riding the bus to the next samuell football game. The bus is traveling to the right at 20 m/s and Jon is walking towards
Elenna [48]

Answer:

Vrel_jon's = 15 [m/s] to the right

Explanation:

Relative velocity is defined as the relative motion between two bodies, taking into account the directions of motion.

Relative velocity is defined as the relative motion between two bodies, taking into account the directions of motion. The relative velocity is defined as the algebraic sum of the velocities, if the movements are opposite the vectors are subtracted, as will be done below.

Vrel = 20 - 5 = 15 [m/s]

A person watching Jon sees him moving to the right at a speed of 15 [m/s]

4 0
3 years ago
The sympathetic nervous system ____________digestion and _____________blood pressure. (2 points)
Talja [164]

Answer:

The sympathetic nervous system _____decelerates_______digestion and __accelerates___________blood pressure. See the explanation below, please.

Explanation:

The sympathetic nervous system together with the parasympathetic make up the autonomic nervous system. The sympathetic system acts in situations of stress, prepares the body for "fight or flight", increases heart rate and blood pressure at the cardiovascular level, at the digestive level it slows down the system, produces bronchodilation, pupil dilation (mydriasis).

3 0
4 years ago
A cliff jumper jumps off a cliff with an initial horizontal velocity of 10 m/s. The cliff is 10 meters high. How far from the ba
nalin [4]

Answer:

The distance reached is 14.3 m.

Explanation:

To find the distance reached by the diamond first we need to find the flight time:

t_{v} = \sqrt{\frac{2h}{g}}

Where:

h: is the height = 10m

g: si the gravity = 9.81 m/s²

t_{v} = \sqrt{\frac{2h}{g}} = \sqrt{\frac{2*10 m}{9.81 m/s^{2}}} = 1.43 s

Now, we can find the distance reached:

x = V_{0_{x}}*t_{v}

Where:

V_{0_{x}} is the initial horizontal velocity = 10 m/s

x = V_{0_{x}}*t_{v} = 10 m/s*1.43 s = 14.3 m

Therefore, the distance reached is 14.3 m.

I hope it helps you!    

3 0
3 years ago
Other questions:
  • Consider a plywood square mounted on an axis that is perpendicular to the plane of the square and passes through the center of t
    7·1 answer
  • Which of the following can influence one’s ability to detect stimuli and increase one’s responsiveness to stimuli in dangerous s
    6·2 answers
  • From the deepest to the surface what are the parts of the earthâs interior
    10·1 answer
  • The greek letter (delta) indicates a(n)
    14·1 answer
  • What is the correct order of organization from smallest to largest?
    11·1 answer
  • Which of the following diagrams accurately applies the Law of
    10·1 answer
  • A horizontal 694 N merry-go-round of radius 1.96 m is started from rest by a constant horizontal force of 61.5 N applied tangent
    10·2 answers
  • Use the diagram of a magnetic field to identify the points being described.
    7·2 answers
  • 5 The frequencies of AM radio waves,
    15·1 answer
  • Define reflection of light?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!