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
svetlana [45]
3 years ago
5

A 65 kg student climbs 7 m up a rope at a constant speed. If the students power to output is 300 w, how long does it take the st

udent to climb the rope
Physics
1 answer:
tino4ka555 [31]3 years ago
3 0

g≈10 m/s²

F=G=mg=65*10=650 N

L=F*h=650*7=4550 J

P=L/t=>t=L/P=4550/300=15.16 s


You might be interested in
The speed of sound in air is about 340m/s. What is the wavelength of sound waves produced by a guitar string vibrating at 490Hz?
MakcuM [25]
Wavelength =v/f therefore wavelength= (340m/s)/(490Hz)= .694m 

HOPE THIS HELPS! THANK YOU!
4 0
3 years ago
What is suvat in physics ?​
Crank

Answer:

suvat is an acronym of five variables that describe a system in motion. a, s, u, v and t

5 0
2 years ago
Read 2 more answers
With a diameter that's 11 times larger than Earth's, _______ is the largest planet.
Svetradugi [14.3K]
With a diameter that's 11 times larger than Earth's, Jupiter is the largest planet.

Jupiter is the biggest planet in the solar system. No wonder ancient astronomers named it after Jupiter, King of the Roman gods. More than 1,000 planets the size of Earth could fit inside Jupiter. A tunnel through Jupiter would be 11 times longer than a tunnel through Earth. A trip around Jupiter equator would take 6 times longer than a trip around the Earth's equator.
5 0
3 years ago
Read 2 more answers
The earth exerts the necessary centripetal force on an orbiting satellite to keep it moving in a circle at constant speed. Which
jenyasd209 [6]

Answer:

E) The centripetal force is always perpendicular to the velocity.

Explanation:

Due to gravity and inertia, the satellite follows a uniform circular motion. In this movement, the velocity is always tangent to the orbit and the centripetal force is directed towards the center. Therefore, there is no net acceleration in the same direction of velocity, which implies that it remains constant.

8 0
3 years ago
Water flows with constant speed through a garden hose that goes up to 27.5 cm high. if the water pressure is 132kpa at the botto
sergejj [24]

Answer:

The pressure at the top of the step is 129.303 kilopascals.

Explanation:

From Hydrostatics we find that the pressure difference between extremes of the water column is defined by the following formula, which is a particular case of the Bernoulli's Principle (v_{bottom}\approx v_{top}):

p_{bottom}-p_{top} = \rho\cdot g\cdot \Delta h (1)

p_{bottom}, p_{top} - Total pressures at the bottom and at the top, measured in pascals.

\rho - Density of the water, measured in kilograms per cubic meter.

\Delta h - Height difference of the step, measured in meters.

If we know that p_{bottom} = 132000\,Pa, \rho = 1000\,\frac{kg}{m^{3}}, g = 9.807\,\frac{m}{s^{2}} and \Delta h = 0.275\,m, then the pressure at the top of the step is:

p_{top} = p_{bottom}-\rho\cdot g\cdot \Delta h

p_{top} = 132000\,Pa-\left(1000\,\frac{kg}{m^{3}} \right)\cdot \left(9.807\,\frac{m}{s^{2}} \right)\cdot (0.275\,m)

p_{top} = 129303.075\,Pa

p_{top} = 129.303\,kPa

The pressure at the top of the step is 129.303 kilopascals.

6 0
2 years ago
Other questions:
  • If the maximum acceleration that is tolerable for passengers in a subway train is 1.21 m/s2 and subway stations are located 810
    13·1 answer
  • 4. The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.35 inches and a standard devia
    10·1 answer
  • The process of changing a property of a wave to transmit information is called .
    14·2 answers
  • A 2060 kg railroad flatcar, which can move with negligible friction, is motionless next to a platform. A 241 kg sumo wrestler ru
    9·1 answer
  • 3. What can you infer about an ion that has a positive charge?
    10·1 answer
  • Billiard ball A of mass mA = 0.125 kg moving with speed vA = 2.80 m/s strikes ball B, initially at rest, of mass mB = 0.140 kg .
    7·1 answer
  • Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?
    7·2 answers
  • Which sound would be loudest?
    12·1 answer
  • Science: Work, Power and Efficiency Practice Problems:
    11·1 answer
  • Please help me and get 15 points and Brainlessly!!!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!