Could someone me with this kinematics question? :

a swimmer heads directly across a river, swimming at 1.6 m/s relative to the water. she
arrives at a point 40 m downstream from the point directly across the river, which is 80 m
wide.

a) what is the speed of the river current?

b) what is the swimmer's speed relative to the shore?

c) in what direction should the swimmer head to arrive at the point directly opposite her
starting point?

d) how long would it take to cross the river swimming in the direction found in (c)?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Which missing item would complete this alpha decay reaction ? > 228/88ra + 4/2he a.224/96 rn b. 232/90 th c. 230/92 u d. 235/92 u

For the below questions, consider a consumer that consumes two goods, x and z with the following utility function. u with bar on top space equals space x to the power of 1 third end exponent z to the power of 2 over 3 end exponent suppose initial values for income and the prices of goods x and z are y equals 90, p subscript x equals space 10, and p subscript z equals 15 respectively, then the price of good x falls to syntax error from line 1 column 89 to line 1 column 100. unexpected '\'.. what is the magnitude of the total effect