alaa

A 5.30 kg package slides 1.57 m down a long ramp that is inclined at 11.8^\circ below the horizontal. The coefficient of kinetic friction between the package and the ramp is mu_k = 0.320 Calculate the work done on the package by the normal force. If the p...

One athlete in a race runnng on a long, straight track with a constanct speed v1 is a distance d behind a second athlete running with a constant speed v2. (a) Under what circumstances is the first athlete able to overtake the second athlete? (Use v_1 for...

A dilute solution of sulfiric acid is added to 15g of copper and iron mixture. a) the volume of h2 envolved at standard conditions is 4.48L what is the mass of each of the metals constituting the mixture ? Vm=24l.mol.

A hawk flies in a horizontal arc of radius 12.0 m at a constant speed of 7.1 m/s. It continues to fly along the same horizontal arc but increases its speed at the rate of 7.9 m/s2. Find the acceleration magnitude under these conditions.

A 1.7 -kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 26.0 m/s. What is the magnitude of the tension in the string at this position?

A 3.6 -kg mass attached to the end of a string swings in a vertical circle (radius = 17.9 m). When the string is horizontal, the speed of the mass is 3.8 m/s. What is the magnitude of the force of the string on the mass at this position?

A nervous student taps his foot seven times every 2 seconds. What is the frequency of his tapping?

The product of three consecutive integers is 720. What is the polynomial that represent the product?

i want french exam for grade 6

melting point of mno4

Juan says, "When you put together unequal groups, you can only add." Is she correct? Explain.

.031

When heated, elemental phosphorus, P4, produces phosphine, PH3, and phosphoric acid, H3PO4? How we can balanced it?