Physics Answers

an object is accelerating uniformly from 8.0 m/s to 16.0 m/s in 10 seconds. How far does the object travel in 10 seconds?

A block of mass M1 is connected by a string to a sphere of mass M2. The block is on a frictionless plane inclined at an angle of 30°, as shown in the figure on the right. The string passes over a pulley of negligible mass and friction, and the sphere hangs freely. Which of the following is always true if the block is accelerating down the incline?

A bolt is needed to attach an actor's harness to a wire across a stage. The bolt is 5, point, 0, c, m,5.0cm long with a 0, point, 25, c, m, squared,0.25cm
2 cross sectional area, and must extend by no more than 0, point, 020, m, m,0.020mm when supporting a 900, k, g,900kg mass. Calculate the minimum value of Young's Modulus of a material if it is to be suitable.

A bolt is needed to attach an actor's harness to a wire across a stage. The bolt is 5.0cm long with a 0.25cm^2 ross sectional area, and must extend by no more than 0.020mm when supporting a 900kg mass. Calculate the minimum value of Young's Modulus of a material if it is to be suitable.

The water in a river is running due west with a speed of 10m/s. A boy in a boat tries to cross the river by rowing due south at 5m/s. The velocity of the boat relative to the shore is?
A. 5/3m/s, SW
B. 5.83m/s, SW
C. 12.5m/s, SW
D. 11.18m/s, SW

The speed of light in air is 300, 000 km/s. What is the speed of light in glass if the refractive index of glass is 1.5

If the mass is tripled to 15kg*3=45kg, what is the new change of motion

A 0.660 kg ball is dropped from rest from the top of a building and falls for 5.65 seconds. How tall was the building

Your golden retriever Maxwell barrels into the room and begins sliding on the freshly waxed floor. If he enters the room at a velocity of 6.0 m/s, and slides 6 meters in 2.2 seconds, what will his acceleration be?