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
soldi70 [24.7K]
3 years ago
13

HELP PLS! What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s

?
Physics
1 answer:
Pachacha [2.7K]3 years ago
7 0

Answer: 600watts

Explanation:

Power of crane = ?

Work done by crane = 15000 J

Time taken = 25s

Recall that power is the rate of work done per unit time

i.e Power = work/time

Power = 15000J/25seconds

Power = 600watts

Thus, the power of the crane is 600watts

You might be interested in
In the following equation , which compounds are the reactants? NaCL+AgNo>NaNo+AgCl
NeX [460]
The first two are always the reactants the products come after so they are last
3 0
3 years ago
Write a collision scenario here. If you choose your own collision, you can have neither, one, or both of the objects break. Be s
OleMash [197]

Answer:

My scenario would be A Car vs. a guard rail on a road.  You have a car that is coming down a Highway at a speed of 43 Mph Miles per hour (69.2018 Kmh)

And it hits a steel guardrail and the car smashes in at the front and the guardrail is only bent while the car has the bumper and the hood along with the headlights and windshield along with the passenger side window break.

Explanation:

This is caused by so much force reacting from one object to another but also depends on molecular density.

5 0
3 years ago
The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days). Determine the average angular velocity (in
lubasha [3.4K]

Answer:

Given that

The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days)

a)

When earth spins on its axis

We know that earth take 1 day to complete one revolution around its own axis.

T= 1 day = 24 hr = 24 x 3600 s

T=86400 s

We know that

T=2π/ω

ω= 2π/T

ω= 2π/86400

ω=7.27 x 10⁻5 rad/s

b)

When earth revolve around earth

T =365 1/4 days = 365.25 days

T= 365.24 x 86400 s

T=31557600

We know that

T=2π/ω

ω= 2π/T

ω= 2π/31557600

ω=1.99 x 10⁻⁷ rad/s

8 0
3 years ago
Read 2 more answers
group 17 is called halogens family, and the group to the right is called the noble gases. How are these elements alike and how a
Verdich [7]
Similarities:
The halogens like noble gases are gaseous im nature. Example,
Chlorine, bromine are halogens and argon , xenon are noble gases.
Both are non-metals.

Differences: Halogens are very reactive because their octet needs only one electron tk complete. But, the nobles gases are quite stable and unreactive because the have complete octets.
8 0
4 years ago
Read 2 more answers
At a race car driving event, a staff member notices that the skid marks left by the race car are
krok68 [10]

A car that experiences a deceleration of -41.62 m/s² and comes to a stop after 10.99 m has an initial velocity of 30.60 m/s.

A car experiences a deceleration (a) of -41.62 m/s² and comes to a stop (final velocity = v = 0 m/s) after 10.99 m (s).

We can calculate the initial velocity of the car (u) using the following kinematic equation.

v^{2} = u^{2} + 2as\\\\u = \sqrt[]{v^{2}-2as} = \sqrt[]{(0m/s)^{2}-2(-42.61m/s^{2} )(10.99m)} = 30.60m/s

A car that experiences a deceleration of -41.62 m/s² and comes to a stop after 10.99 m has an initial velocity of 30.60 m/s.

Learn more: brainly.com/question/14851168

5 0
3 years ago
Other questions:
  • If the average distance between bumps on a road is about 10 m and the natural frequency of the suspension system in the car is a
    5·1 answer
  • Suppose a radar gun sends out radio waves with a frequency of 2,000,000.0 Hz. The waves bounce off a moving car and return with
    15·1 answer
  • What’s 3 times 10 to the 8th power divided by 2.45 times 10 to the 9th power
    10·1 answer
  • ______ is/are usually the best conductor/s. a. Metals c. Air b. Water d. Minerals Please select the best answer from the choices
    6·2 answers
  • You are driving your small, fuel-efficient car when you have a head-on collision with a big, fuel-efficient truck that is three
    15·1 answer
  • Ferdinand the frog is hopping from lily pad to lily pad in search of a good fly
    5·1 answer
  • As an admirer of Thomas Young, you perform a double-slit experiment in his honor. You set your slits 1.15 mm apart and position
    15·1 answer
  • The _________ principle states that the net electrical force on a specific charge is equal to the sum of the vector components o
    10·2 answers
  • Which of the following is an accurate comparison of the weight of an astronaut on the moon and the Earth? The weight of the astr
    8·2 answers
  • Waves interact with ___ and other ___.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!