According to the NASA study referenced in the New Science of Learning presentation, a ____ nap significantly improved the flying performance of NASA astronaughts. Question 18 options: 7 17 27 37
Q: What is the minimum work that a motor must do to lift a 50 lb object from the floor to a height of…
A: CONCEPT: We know, work done = force x displacement So, work done W=F×d Where,…
Q: person lifted a bag of groceries 2.89 m from the floor onto a counter top using a constant force of…
A:
Q: A pile driver lifts a 400 kg weight and then lets it fall onto the end of a steel pipe that needs to…
A:
Q: A 3.4 kg mass falls a distance of 6.19 m to the ground. What was the object’s change in…
A: Given that:m=3.4 kgh=6.19 m
Q: A 70kg person climbs 2 meters up a ladder. Find the gravitational energy of the person at the bottom…
A: Given data: The mass, m=70 kg The distance climbs by a person on a ladder, h=2 m
Q: 400 Joules of work is done on an object that weights 200 N. How far did the object move?
A:
Q: An arrangement of two pulleys, shown in the figure below, is used to lift a 80.0-kg crate a distance…
A:
Q: What is the gravitational potential energy of the moon due to its position relative to the Earth?
A: G is the gravitational constant = m1 is the mass of the Moon = m2 is the mass of the Earth = and r…
Q: An electric motor raises an elevator weighing 1.20 x N a distance of 9 m in 15 s. What is the power…
A:
Q: A 75kg- bicyclist starts from rest at the top of a hill and rolls down the hill without pedaling.…
A: Write the value of height of the hill. h=49 m Here, the initial speed of the bicyclist is zero…
Q: A person weighing 197 N climbs a flight of stairs 6.4 m high in 5.0 s. What power is required to…
A: Given: Force, F = 197 N Displacement, d = 6.4 m Time taken, t = 5 s To determine the…
Q: Suppose you are using a see-saw with your friend. You have a weight of 500 N and your friend has a…
A: Given data: The weight of man is W=500 N. The weight of friend is W'=600 N. The distance of man from…
Q: How much power is used if an 7.652 kg box is lifted to a height of 14.54 m in 2.42 seconds? Round…
A: Mass of box m = 7.652 kg Height to which it is raised h = 14.54 m Time taken to reach height h T…
Q: A hydroelectric dam uses the energy of a waterfall to turn a turbine to generate electric energy…
A:
Q: A meteor with the mass 1.4×10^8 kg hits Earth at 12km/s. What is the kinetic energy delivered to the…
A: The given values are,
Q: A force of 500 N created 2000 W of power. What is the velocity of the applied force? v = 400 m/s v…
A: Power is the work done per unit time Power = Work/Time We know that, Work = Force × Distance Then,…
Q: A 4.0 kg bowling ball is rolling on the lane floor at 10.0 m/s. What is the gravitational potential…
A:
Q: Group Problem: You are planning to build a log cabin in Northern Minnesota on a remote hill with a…
A: Given,Weight of the log = 1000 lbsAngle with espect to horizontal = θ =20°The coefficient of kinetic…
Q: A baseball weighs 1.3 N and has a speed of 26 m/s just before the catcher catches it. What is the…
A:
Q: A rock with a mass of 1.0 kg is at the top of a hill and has a potential energy of 50 J. How high…
A: Given: m = 1 kg P.E = 50 J
Q: olve the chosen problem. Express your answer with the appropriate units. µA ? m v = 31.18 S Submit…
A: In order to solve this question. We will write total force Along the motion. And some basic…
Q: What is the gravitational potential energy of the earth as it orbits the sun?
A: Here we have to find out gravitational potential energy of the earth as it orbits the sun.
Q: If an object's kinetic energy is tripled, how may times faster is it moving? V3 times faster 3 times…
A: Kinetic energy is defined as the energy of a particle due to its motion. A moving body has kinetic…
Q: An energy storage system is being designed using a number of concrete blocks and electrically driven…
A:
Q: A typical baseball has a mass of 0.145 kg. Some pitchers can throw a baseball with a speed of about…
A:
Q: A person weighing 233 N climbs a flight of stairs 6.0 m high in 6.0 s. What power is required to…
A:
Q: A penny is dropped from the Statue of Liberty. The Statue of Liberty is 93 m tall. If a penny has…
A: The objective of the question is to find out the kinetic energy of the penny when it is at the…
Q: A 1,350 kg package is dropped from a plane from a height of 760 meters. What is its potential energy…
A: Given that,Mass of package : m = 1350 (kg)The height : h = 760 (m)The acceleration due to gravity :…
Q: Gravity does 343343 J of work while a bowling ball rolls down a hill. If the final kinetic energy of…
A:
Q: Write the value of the kinetic energy of a higher case. A 12 kg-dog running at 8m/s A 24…
A: Kinetic energy of an object of mass(m) is K.E= (1/2) mv2 Joule Where, V= Velocity
Q: In which situation will the object have the largest gravitational potential energy? a squid deep in…
A: The potential energy is the work done by the external force. The gravitational force is a central…
According to the NASA study referenced in the New Science of Learning presentation, a ____ nap significantly improved the flying performance of NASA astronaughts.
Question 18 options:
|
|
7 |
|
|
17 |
|
|
27 |
|
|
37 |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Which one of the following situations is an example of an object with a non-zero kinetic energy? a satellite in geosynchronous orbit a boulder resting at the bottom of a cliff a stationary pendulum a drum of diesel fuel on a parked truck a car parked at the top of a hillSamantha is on her bicycle, at the top of a 25 m hill. If Samantha and the bicycle have a combined mass of 73 kg, what is her gravitational potential energy at this point?What is the kinetic energy of a 738.66 N woman jogging at 0.93 m/s?
- A bag is dragged up a rough slope at a constant speed by a rope on a winch. The kinetic energy of the bag is 500 J and it gains 1000 J in potential energy as it is dragged up the slope. If the work done by the winch to lift the bag up the slope is 1500 J, how much energy was lost as thermal energy?A dog races up the stairs in a time of 1.80 seconds. If the stairs are 12 feet high, how much power in hp is the dog putting out? The weight of the dog is 48 lbs.What power is needed to lift a 49-kg person a vertical distance of 5.0 m in 20.0 s? 120 W 25 W 60 W 210 W 12.5 W
- What is the power rating of a motor that is capable of lifting a 100 kg object to a height of 20 m in one minute? (hint: watch your units) a 33 W b 19600 W c 327 W d 2000 WA man pushes a lawn mower on a level lawn with a force of 189 N. If 28% of this force is directed forward, how much power does he expend in pushing the mower 5.5 m in 16 s?A person is 170 cm tall. He holds a 10 kg object on his head for 10 minutes. How much work is done on the object?
- Water flows over a section of a waterfall at the rate of 5.6 ✕ 104 kg/s and falls 40 m. How much power is generated by the falling waterA penny is dropped from the top of the statue of liberty. The statue if liberty is 93 m tall. If a penny has about 3 jould of gravitational potential energy at the top, how much kinetic energy will it have half way point (45.6 m)A man pushes a lawn mower on a level lawn with a force of 203 N. If 53% of this force is directed forward, how much power does he expend in pushing the mower 4.7 m in 16 s?