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Sasha

Questions (250)

the first excited state of the nucleus of uranium-235 is 0.051 MeV above the ground state. what is the wavelength of the photon
1. 2 answers
2. 1,285 views
1.Which option (front-end solutions, double bunking, or back-end solutions) do you feel is the most effective in our
1. 1 answer
2. 432 views
Find the points of inflection of the curve below. Round the answers to three decimal places. (Hint: All three are in a straight
1. 1 answer
2. 522 views
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a
1. 2 answers
2. 1,514 views
How many ways can 3 students be arranged in three chairs? I'm not really sure but I think that the answer will be 9 (nine), is
1. 1 answer
2. 623 views
I just need help with part c. I know stopping takes longer but we have to explain why.A student stands on a bathroom scale in an
1. 0 answers
2. 714 views
You are driving a 2590.0 kg car at a constant speed of 14.0 m/s along an icy, but straight, level road. As you approach an
1. 0 answers
2. 1,007 views
If you use a horizontal force of 31.0 N to slide a 10.5 kg wooden crate across a floor at a constant velocity, what is the
1. 0 answers
2. 881 views
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
1. 3 answers
2. 992 views
As a baseball is being caught, its speed goes from 27.5 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.150 kg.(
1. 2 answers
2. 824 views
1. Three particles with charges of +11 mC each are placed at the vertices of an equilateral triangle with sides of 15.0 cm. What
1. 2 answers
2. 949 views
I found the first three parts of the question but I can't figure out part d.The instruments attached to a weather balloon in the
1. 4 answers
2. 1,190 views
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
1. 5 answers
2. 1,612 views
why should spare petrol for cars be carried in a metal rather than plastic container?Explain why the inside of the car is a safe
1. 1 answer
2. 440 views
charges of +1.000 C are located at the corners of a 45-45- right triangle which has a hypotenuse that is 1.414 m long. Determine
1. 1 answer
2. 603 views
the force between two charges is 20.0 N. if one charge is doubled, the other is tripled, and the distance between them is
1. 1 answer
2. 1,143 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
1. 2 answers
2. 1,883 views
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical
1. 1 answer
2. 638 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
1. 2 answers
2. 1,155 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
1. 2 answers
2. 5,203 views
(a) Suppose you throw a football. At some instant, when the ball is in contact with your hand, your hand exerts a force of 100 N
1. 2 answers
2. 1,018 views
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical
1. 0 answers
2. 537 views
to what extent was Hitler's rise to power due to personal appeal and ability?
1. 1 answer
2. 1,009 views
a 145g baseball is dropped from a tree 13.0m above the ground. with what is the velocity of the baseball at the ground after it
1. 1 answer
2. 1,254 views
21.7 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 2.2 m/s How many joules of thermal energy are
1. 2 answers
2. 6,346 views
What would be a good thesis statement for my intro paragraph?Effect and Evolution of African Americans in Minnesota Intro The
1. 1 answer
2. 792 views
A 3800 kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. Snow begins to fall vertically and
1. 3 answers
2. 5,790 views
A sports car of mass 950kg (including the driver) crosses the rounded top of a hill (radius = 95m) at 22m/s. Determinea) the
1. 1 answer
2. 5,049 views
a .45kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3m on a frictionless horizontal
1. 2 answers
2. 4,913 views
a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal
1. 3 answers
2. 16,263 views
Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is
1. 2 answers
2. 1,055 views
Highway safety engineers build soft barriers such as the one shown in Figure 3-21, so that cars hitting them will slow down at a
1. 2 answers
2. 1,568 views
A race car can be slowed with a constant acceleration of -14 m/s2.(a) If the car is going 44 m/s, how many meters will it travel
1. 2 answers
2. 914 views
calculate the force of Earth's gravity on a spacecraft 12,800 km (2 Earth radii) above Earth's surface if its mass is 1350 kg.i
1. 4 answers
2. 3,243 views
When will your apparent weight be greatest, as measured by a a scale in a moving elevator; when the elevators: (a) accel.
1. 8 answers
2. 3,029 views
a 75-kg petty theif wants to escape from a third story window. unfortunately a makeshift rope of sheets tied together can
1. 2 answers
2. 3,078 views
Round to the nearest ten thousand.Add and compare the answers. 16,250 + 58,351 = round first
1. 1 answer
2. 508 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
1. 6 answers
2. 751 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
1. 1 answer
2. 715 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
1. 1 answer
2. 768 views
Edna and Nancy leave the house of a common friend at the same time and walk for 4 hours. Edna walks due east at the average rate
1. 5 answers
2. 1,163 views
What is an easy wway to remember Japanese other than flash cards?
1. 1 answer
2. 498 views
HelloI have an exam tommorrow and my question is : What is the difference between the types of the data base text and number in
1. 0 answers
2. 795 views
HelloMy exams are coming I'm a straight A student .. the problem however is : My textbooks , teacher and every piece of work
1. 0 answers
2. 1,051 views
HelloMy exams are coming I'm a straight A student .. the problem however is : My textbooks , teacher and every piece of work
1. 0 answers
2. 546 views
Can you please explain and provide me links for the rock structure of the appalachian mountains? I'm almost done my power point
1. 1 answer
2. 551 views
I found some links for the geological history for the appalachian mountains BUT it confuses me. Can you please simplify the
1. 1 answer
2. 694 views
I need to do a power point presentation on the Appalachian mountains. I need to find the geological history,rock
1. 1 answer
2. 597 views
So unless I become a high-risk day-trader, there really is no way for me to make a living just investing in the stock market?So
1. 0 answers
2. 662 views
Are there people who invest in the stock market full time for a living? In order words, are there people who make thousands of
1. 0 answers
2. 939 views

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