PHY 151- Lab M1

A sphere is placed over the three closely packed identical spheres on a horizontal plane. All the spheres are identical both in weight and size. If one sphere weighs 100-N, determine the contact reaction between the upper and bottom spheres in N. A 28.04 163.30 16.80 D 40.82 24.80 F 18.42 80.24 H) 42.08

2

800- Dimensions in mm F1 600 F2 F3 900 L560 -480- What is the y component of F3=423 N?

A horizontal circular loop of wire of diameter 0.020m is lowered into the crude oil form film. The force due to the surface tension of the liquid is 0.0113N. What is the surface tension of the crude oil? a. 0.090 N/m O b. 0.900N/m O C. 0.038N/m O d. 0.450N/m O e. 0.045N/m

Within a certain type of star called a neutron star, the material at the center has a mass density of 1.0 x 1018 kg/m³. If a tiny sphere of this material of radius 1.0 x 10-5 m were somehow transported to the surface of the earth, what would be the weight of this sphere? O 3.8 × 10⁹ N O 4.1 × 104 N O 1000 N O 7.0 × 104 N O 4200 N

Find the force between 2C and -1C separated by a distance 1 m in air. Pick one answer.     A. -1.8 X 1010     B. 18 X 1010     C. 1.8 X 1010     D. -18 X 1010

Freaks yon. Consider two blocks, A and B, where ma < mB. They are pulled by a horizontal force with the same magnitude F. If there is no friction between block b and the table, and there is enough friction between block A and B so that they move together as a unit, which free-body diagram best represents block A? A F В F

5. Question : Determine the volume of the solid body generated by revolving the shape shown below. The rotation is about to y axis an through 360°. y 40 mm 40 mm 40 mm 80 mm 80 mm

1

A 4 mm diameter of metal wire with a length of 4 m is applied by a certain load due to this the wire is elongated to 6 mm. what will be the change in diameter due to the elongation. The Poisson's ratio is 0.3. O a. 0.5*10-6 m O b. 1.4*10-6 m O c. 1.8*10-6 m O d. 2.2*10-6 m

Chris and her friends were playing outside when she tripped and fell and got a large piece of metal stuck in her arm. Her friends called for an ambulance and when the EMT's arrive they should do all of the following except: O a Stabilize the object with bulky dressings to reduce motion Control the bleeding by applying pressure on the dressing surrounding the object Leave object in place and do not shorten the object Remove the object immediately to make Chris more comfortable 00 0 0

You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your spaceship can travel with 70% the speed of light and has a cylindrical shape with a diameter of 6 m at the front surface and a length of 25 m. You have to cross the interstellar medium with an hydrogen atom/m a) calculate the time it takes your spaceship to reach Sirius. b) Determine the mass of interstellar gas that collides with your spaceship during the mission. Note: Use 1.673 x 10-27 kg as proton mass.

My morning cup of tea is steaming hot at 95 degrees celcius. It takes 37 ice cubes from my freezer that has a temp of -18 degrees celcius. (Use specific heat for water for the tea)        A. how much heat does it take to raise the temperature of the ice cube to melting?       B. How much heat does it take to melt the ice cube?       C. How much tea do I need to equilibrate at my ideal tea drinking temperature of 67.4 degrees celcius?

P-7 Please I need help with this question needed very clearly and step by step explanation and NEEDED ONLY TYPED SOLUTIONS PLEASE NO HANDWRITTEN please, will be really appreciated for your help. NEEDED ONLY TYPED SOLUTIONS NEEDED ONLY PROBLEM 66

1. A projectile is accelerated through the barrel of a gas gun by gas at high pressure. The acceleration of the projectile is given by a=c/s (m/s) where s (m) is the position of the projectile in the barrel and c is a constant that depends on the initial gas pressure. The projectile starts from rest at s = 1 m and accelerates until it reaches the end of the barrel at s = 2.5 m. a) Determine the value of c for the projectile to leave the barrel with a velocity of 125 m/s. b) (Python) Plot s vs t, v vs t.

When a massive star reaches the end of its life, it is possible for a supernova to occur. This may result in the formation of a very kg small, but very dense, neutron star, the density of which is about the same as a neutron. A neutron has a mass of 1.7 x 10-27 and an approximate radius of 1.2 x 10-15 m. The mass of the sun is 2.0 x 1030 kg. Determine the radius R of a neutron star that has three times the mass of our Sun and the same density as a neutron. 1.27 x104 R = Incorrect

what is the angle of the surface of the fluid if the container moves 10m/s^2 horizontally a. 26.78b. 25.41c. 27.52d. 29.25

Bill is creating a 45 degree offset around a tank