# Sandara

Most popular questions and responses by Sandara
1. ## Physics

A car traveling at 20m/s when the driver sees a child standing in the road. He takes 0.80s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops?

2. ## Physics

A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?

3. ## Physics

A 25.0kg pickle is accelerated from rest through a distance of 6.0m in 4.0s across a level floor. If the friction force between the pickle and the floor is 3.8N, how much work is required to move the object?

4. ## Physics

A 1.25kg book in space has a weight of 8.35N. What is the value of the gravitational field at that location ?

5. ## Physics

A 5.0 amp current flows through a 0.20m long solenoid with 1500 loops What are the magnitude and direction of the magnetic field at the centre of the solenoid?

6. ## Physics

A pilot points his aircraft due easy, while wind blows from the south. If the resultant velocity of the aircraft is 44m/s 22 degrees [n] of [e], at what speed does the wind blow?

7. ## Physics

Humans can hear sound frequencies ranging from about 20-20000 Hz. What is the shortest wavelength humans can hear (assuming sound travels at 343m/s)

8. ## Physics

A proton travelling 1.5x10^6 m/s enters 2 vertically charged parallel plates held 0.15m apart. The top plate is held at +250V and the bottom is grounded (0V). A magnetic field can be applied to the area between the plates to counteract the electric force

9. ## Physics

A horse pulls a child on a sled along a horizontal snow-covered trail using a rope. The horse does 8.0x10^3J of work as it pulls the child and sled 62m at a constant speed. The coefficient of friction between the sled and the snow is 0.25. A) Find the

10. ## Physics

As a baseball is being caught, it's speed goes from 30.0m/s to 0m/s in about 0.0050s. The mass of the baseball is 0.145kg A) what is the baseballs acceleration B) what are the magnitude and direction of the force acting on it? C) what is the magnitude and

11. ## Physics

A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?

12. ## English

I have to answer these questions but i am confused...please help :) As flies to the wanton boys are we to the gods; they kill us for sport Metaphor Personification Hyperbole Litotes None of these I do not understand the sentence itself :( I wish I had a

13. ## Physics

An airplane starts from rest and accelerates at a constant rate if 3.00m/s^2 for 30.0s before leaving the ground. A)How far did it move? B) how fast was it going when it took off?

14. ## Physics

The sun outputs 1380 W/m^2 of energy at the earth's surface. A small rectangular las has the following dimensions: 1km wide, 1.4km long, and 300m deep A) Calculate the thermal energy added to the lake if exposed to 12h of direct sunlight. B) calculate the

15. ## Are there even any physics tutors here???

Sorry if I'm sounding as if I'm whining but I'm getting pretty annoyed at how there are many unanswered physics questions. Literally posted a question two months ago and never got any help... This is kinda annoying because the questions get lost in the

16. ## Physics

Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx.

17. ## Physics

A neighbourhood requires 1.5 x 10^5 w of electricity to power all homes during peak usage times. A step-down transformer is used on the high voltage transmission lines to lower the voltage to 120v for household use. There are 25000 primary coils and 140

18. ## Physics

A log floating on the water bobs up and down a total of 7 times during a 10 second interval. What is the frequency of the water waves?

19. ## Physics

A speaker moves a solid cone up and down to compress air making sounds waves at a frequency of 135 Hz. How long does it take for the cone to travel from it's lowest and highest points

20. ## Physics

A thickness planer is a machine that uses a rotating blade to shave a thin layer of wood off the top of the surface. While operating, a piece of wood is inserted such that it causes the machine to struggle and slow down due to resistance of the lumber.

21. ## Physics

A tennis ball is thrown up with an initial speed of 22.5m/s. It is caught at the same distance above the ground. A) how high does the ball rise B) how long does the ball remain in the air?

22. ## Math

Two terms of an arithmetic sequence are t6=-3 and t11=-13. What is t20?

23. ## Physics

A Boeing 747 can travel up to 254m/s. The pilot must travel from Vancouver to Calgary, which is located 3.0 x 10^2 km [N] and 7.0 x 10^2 km [E]. There is a strong wind blowing at 50.0 m/s [SE] A) determine the direction that the plane must travel to reach

24. ## Physics

Student A is on a 9m high bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would

25. ## Hi

Name: Park Sumin Partner: Bangtan Boys Rap Monster Scenario: Author's choice

26. ## Physics

Student A is on a 9m Hugh bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would

27. ## Physics

Thermal energy question A 40.0kg sample of concrete has 10% zinc impurity (by mass). If 6.0x10^4J of thermal energy is added to the sample, determine the change in temperature.

28. ## physics

Gravity is pulling downward on a 20.0kg block resting on a 15 degree incline. What is the magnitude of the force component parallel to the surface (hint: how to turn 20.0kg into force)?

Ooops

1. ## Are there even any physics tutors here???

I understand but there were many questions asked after that I'm just curious in knowing if there's any other physic tutors that could help us

posted on February 2, 2015

A dozen = 12 Therefore 9 dozen pads equals 108 (9 x 12) If you have a total of 108 pads and want to put them into 4 boxes you divide 108 by 4 (108/4) Therefore there would be 27 pads in each box

posted on February 2, 2015
3. ## Physics

I meant due east

posted on October 4, 2014
4. ## physics

Oh wow thanks! I was wondering if you could give me an explanation as to how you found the solution if that isn't too much to ask

posted on September 24, 2014
5. ## physics

posted on January 23, 2014
6. ## Physics

sorry I meant 9m high bridge

posted on January 23, 2014
7. ## Math

4*2=8 servings (This means he has 8 halves, therefore he does have enough to serve his friends) He will have one leftover because 8-7=1

posted on January 23, 2014
8. ## physics

The answer is supposed to be 34m..

posted on January 22, 2014
9. ## Math

Thank you

posted on January 19, 2014
10. ## Physics

I don't understand why it's 7/10Hz though...

posted on January 8, 2014
11. ## Physics

Thanks ^^

posted on January 2, 2014
12. ## English

ohh i see it now.. Thank you for ur help writeacher :)

posted on May 23, 2011
13. ## English

hmm the first one now i am stuck with simile, metaphor and personification? And as for the second one i don't understand why it would be a hyperbole

posted on May 23, 2011
14. ## Pre-algebra HELP ME PLEASE

oh that's easy you just equal everything to 88 units... 1. add everything together... so 7x+4 2. equal to 88 3. Solve! 7x+4=88 thenn... you have x to figure out each side

posted on May 23, 2011